Definition

Das Zehnjahresrisiko für Herz-Kreislauf-Erkrankungen ist eine berechnete Wahrscheinlichkeit – ausgedrückt als Prozentsatz –, dass eine Person innerhalb des nächsten Jahrzehnts ein schweres kardiovaskuläres Ereignis wie einen Herzinfarkt oder Schlaganfall erleidet; es wird anhand validierter Gleichungen geschätzt, die Alter, Geschlecht, Blutdruck, Cholesterinspiegel, Diabetesstatus und Rauchen einbeziehen; aktuelle Leitlinien sehen die Erwägung von Aspirin zur Primärprävention für Erw…

Warum es wichtig ist

Diese Zahl ist der entscheidende Schwellenwert, den Ärzte nutzen, um zu entscheiden, ob bei einer Person, die noch nie eine Herzerkrankung hatte, der Nutzen von Aspirin die Blutungsrisiken voraussichtlich überwiegt.

Definition

11β-HSD1 ist ein im Fettgewebe exprimiertes Enzym, das inaktives Cortison lokal in aktives Cortisol umwandelt und so die Glucocorticoid-Signalübertragung in Fettdepots verstärkt; seine im Vergleich zum subkutanen Fett relativ höhere Expression im viszeralen Fett kann ein Gewebemilieu schaffen, das die Lipidspeicherung und eine Stoffwechseldysfunktion fördert, die einem milden Cushing-Syndrom ähnelt.

Warum es wichtig ist

Dieses Enzym verknüpft chronischen Stress auf molekularer Ebene mit der Ansammlung von viszeralem Fett, unabhängig vom Gesamtkortisolgehalt im Blutkreislauf.

Definition

Ein Standard-Elektrokardiogramm, das die elektrische Aktivität des Herzens gleichzeitig von zwölf Elektrodenpositionen aufzeichnet, die an den Gliedmaßen und am Brustkorb angebracht sind; bei Durchführung unter maximaler Belastung kann es ischämische Veränderungen wie ST-Strecken-Senkungen aufdecken, die in Ruhe unsichtbar sind.

Warum es wichtig ist

Das Verständnis dafür, warum ein Ruhe-EKG signifikante Blockaden übersehen kann, erklärt, warum Belastungstests unter maximaler Anstrengung für Sportler wichtig sind.

Definition

Die wirksamste und biologisch aktivste Form von Östrogen, die während der reproduktiven Jahre hauptsächlich von den Ovarialfollikeln produziert wird; sie wirkt auf Östrogenrezeptoren im gesamten Gehirn und Körper, um den Glukosestoffwechsel, die synaptische Funktion, die Stimmung und den vaskulären Tonus zu regulieren, und sinkt während der Menopause abrupt ab.

Warum es wichtig ist

Die Erkenntnis, welches spezifische Östrogen beteiligt ist, hilft zu erklären, warum die Menopause das Gehirn und das Herz so tiefgreifend beeinflusst und warum Formulierungen von Hormontherapien nicht austauschbar sind.

Definition

Eine wichtige US-amerikanische Leitlinie für die klinische Praxis zum Cholesterinmanagement, die den CAC-Score als Entscheidungshilfe einbezieht, empfiehlt, dass eine Statintherapie bei asymptomatischen Personen mit intermediärem Risiko, die einen CAC-Score von Null aufweisen, aufgeschoben werden kann, es sei denn, es liegen Diabetes, aktives Rauchen oder eine starke familiäre Vorbelastung mit vorzeitiger kardiovaskulärer Erkrankung vor.

Warum es wichtig ist

Diese Leitlinie ist die Hauptautorität für die klinische Praxis, bei einem Agatston-Score von Null (zero CAC score) den Beginn einer Statin-Therapie hinauszuzögern oder zu vermeiden.

Definition

Eine gemeinsame Leitlinie für die klinische Praxis des American College of Cardiology und der American Heart Association zu Strategien zur Verhinderung eines ersten kardiovaskulären Ereignisses, einschließlich Empfehlungen zur angemessenen Verwendung und zu den Grenzen von Standard-Risikorechnern und bildgebenden Verfahren in der Primärprävention.

Warum es wichtig ist

Diese Leitlinie bestimmt, was Ärzten bei routinemäßigen kardiovaskulären Untersuchungen empfohlen und was nicht empfohlen wird, weshalb das Verständnis ihres Geltungsbereichs Patienten dabei hilft, bessere Fragen darüber zu stellen, ob eine zusätzliche Abklärung angezeigt ist.

Definition

Die ESC-Leitlinie für Sportkardiologie aus dem Jahr 2020 ist das evidenzbasierte Dokument der Europäischen Gesellschaft für Kardiologie, das Empfehlungen zu kardiovaskulären Screening-Untersuchungen, zur Risikostratifizierung und zu Entscheidungen über die Wiederaufnahme des Sports für Leistungs- und Breitensportler, einschließlich Masters-Sportlern mit verdächtigen oder bekannten Herzerkrankungen, enthält.

Warum es wichtig ist

Es setzt den aktuellen klinischen Standard dafür, wie Ärzte ältere Sportler untersuchen sollten, die möglicherweise kardiovaskuläre Pathologien hinter hoher Fitness verbergen.

Definition

Die revidierten NIA-AA-Kriterien von 2024 sind diagnostische Leitlinien des National Institute on Aging und der Alzheimer's Association, die die Alzheimer-Krankheit biologisch durch das Vorhandensein von Amyloid- und Tau-Kernbiomarkern definieren, unabhängig von klinischen Symptomen.

Warum es wichtig ist

Der Artikel setzt sich ausdrücklich mit diesen Kriterien auseinander, um zu argumentieren, dass die Definition von Alzheimer anhand ihres nachgeschalteten Biomarker-Fingerabdrucks mit der Annahme vereinbar ist, dass eine Gefässerkrankung eine vorgeschaltete Ursache dieses Fingerabdrucks ist.

Definition

24S-Hydroxycholesterol ist ein Oxysterol, das im Gehirn durch enzymatische Umwandlung von Cholesterol produziert wird, wodurch es die Blut-Schranke überwinden und im Blutkreislauf abgebaut werden kann – dem primären Ausscheidungsweg für Gehirncholesterol.

Warum es wichtig ist

Es ist das messbare Nebenprodukt des Gehirncholesterin-Turnovers und ein potenzieller Biomarker des Cholesterinstoffwechsels im zentralen Nervensystem.

Definition

Die biologisch aktive Form von Folat, die im Blut zirkuliert und als Methyldonor bei der Remethylierung von Homocystein zu Methionin dient; es ist die Form, die vom Enzym Methioninsynthase verwendet und in Nahrungsergänzungsmitteln als 'L-Methylfolat' verkauft wird.'

Warum es wichtig ist

Das Verständnis, dass dies die aktive Folat-Form ist, hilft zu erklären, warum herkömmliche Folsäure vom Körper umgewandelt werden muss, bevor sie Homocystein senken kann.

Definition

Ein fortschrittliches CT-System, dessen Detektor breit genug (160 mm) ist, um das gesamte Herz in einer einzigen Rotation und einem Herzschlag zu erfassen, wodurch die Artefakte durch Bildzusammenfügung, die bei schmaleren Detektoren auftreten, eliminiert und Strahlendosen von unter 1 Millisievert ermöglicht werden.

Warum es wichtig ist

Der Artikel argumentiert, dass diese Technologie die longitudinale Plaque-Verfolgung sicherer und praktikabler macht, was ihre potenziell wichtige Rolle in der routinemäßigen präventiven Kardiologie unterstützt.

Definition

Die β-adrenerge Responsivität bezeichnet die Empfindlichkeit des Herzens gegenüber der Stimulation durch Adrenalin und verwandte Stresshormone über beta-adrenerge Rezeptoren; das Altern verringert diese Empfindlichkeit und schränkt ein, wie schnell und kraftvoll das Herzen bei maximaler Belastung reagieren kann, selbst bei gut trainierten Personen.

Warum es wichtig ist

Die abnehmende Beta-Rezeptor-Empfindlichkeit ist ein Grund dafür, dass die maximale Herzfrequenz mit dem Alter unabhängig von der Fitness sinkt, wodurch der sportlichen Leistungsfähigkeit eine biologische Obergrenze gesetzt wird.

Definition

Der primäre Ketonkörper, der beim Fettstoffwechsel produziert wird; seine Blutkonzentration wird als wichtigster biochemischer Marker für Ketose verwendet, unabhängig davon, ob diese durch Fasten, sehr kohlenhydratarme Ernährung oder die Einnahme von exogenen Ketonpräparaten herbeigeführt wurde.

Warum es wichtig ist

Das Verständnis von βHB verdeutlicht, was 'in Ketose zu sein' chemisch tatsächlich bedeutet, was für die Bewertung von gesundheitsbezogenen Angaben zur Keto-Ernährung unerlässlich ist.

Definition

γ-Butyrobetain (γBB) ist ein wichtiger metabolischer Zwischenschritt, der im proximalen Darm entsteht, wenn Bakterien beginnen, L-Carnitin aus der Nahrung zu verarbeiten; es reichert sich in einer Rate an, die etwa 1.000-mal höher ist als die direkte TMA-Bildung, und dient als Reservoir, das die TMA- und TMAO-Produktion noch lange nach der Verdauung einer fleischhaltigen Mahlzeit aufrechtzuerhalten.

Warum es wichtig ist

Das γBB-Reservoir erklärt, warum eine einzige Ernährungsumstellung Ihren TMAO-Spiegel möglicherweise nicht schnell senkt – der Darm verfügt über einen großen Vorrat, aus dem er schöpfen kann.

Definition

ABCA1 ist ein Protein, das Cholesterin aus Zellen herauspumpt und es an HDL-Partikel für den Rücktransport zur Leber übergibt.

Warum es wichtig ist

Es ist der erste Schritt des reversen Cholesterintransports. Menschen mit zwei defekten Kopien entwickeln die Tangier-Krankheit mit fast überhaupt keinem HDL – ein natürliches Experiment darüber, was HDL eigentlich tut.

Definition

Membranproteine in Makrophagen-Schaumzellen, die intrazelluläres Cholesterol zu extrazellulären Akzeptoren wie apoA-I und HDL exportieren; ihre Aktivierung während der Lipidsenkung ist ein Schlüsselschritt bei der Plaqueregressio, die es lipidbeladenen Zellen ermöglicht, ihre Cholesterolfracht abzugeben.

Warum es wichtig ist

Sie sind die molekularen 'Ausgangstüren', die es ermöglichen, dass Cholesterin, das in den Zellen der Arterienwand eingeschlossen ist, entfernt wird – sie zu verstehen, klärt, wie die lipidsenkende Therapie auf zellulärer Ebene funktioniert.

Definition

Ein Bauchaortenaneurysma ist eine Erweiterung der Aorta im Bauchraum, die primär durch chronische Entzündungen, Arteriosklerose und eine unkontrollierte proteolytische Kaskade angetrieben wird, bei der Matrix-Metalloproteinasen das Elastin- und Kollagengerüst der Wand zerstören.

Warum es wichtig ist

AAA teilt seine Ursache mit der koronaren und peripheren Arterienkrankheit, was es zu einem relevanten Risiko für jeden macht, der bereits kardiovaskuläre Risikofaktoren managt.

Definition

Abetalipoproteinämie ist eine seltene autosomal-rezessive Erkrankung, die durch Funktionsverlustmutationen im MTTP-Gen verursacht wird, welches für den Zusammenbau und die Sekretion von ApoB-haltigen Lipoproteinen erforderlich ist; betroffene Personen weisen ein nahezu vollständiges Fehlen zirkulierender ApoB-Partikel auf, wobei das Gesamtcholesterin typischerweise unter 30 mg/dl liegt und LDL-C oft nicht nachweisbar ist. Trotz schwerwiegender nicht-kardialer Komplikationen (Fettmalabsorption...

Warum es wichtig ist

Es ist der beste reale Beweis dafür, dass Atherosklerose ohne ApoB-haltige Partikel im Wesentlichen nicht auftritt.

Definition

Das absolute Risiko ist die tatsächliche Wahrscheinlichkeit, dass Ihnen etwas passiert, ausgedrückt als Prozentsatz. Wenn Ihr absolutes Risiko für einen Herzinfarkt in den nächsten zehn Jahren bei 12 Prozent liegt, bedeutet das, dass etwa 12 von jeweils 100 Menschen wie Ihnen einen erleiden würden.

Warum es wichtig ist

Dies unterscheidet sich vom relativen Risiko, das nur zwei Gruppen vergleicht. Ein Medikament, das das Risiko um 25 Prozent senkt, klingt enorm, aber wenn Ihr Ausgangsrisiko winzig war, ist auch der reale Nutzen winzig. Fragen Sie immer nach der absoluten Zahl.

Definition

Die ACC/AHA Pooled Cohort Equations sind eine Reihe von Herz-Kreislauf-Risikorechnern, die gemeinsam vom American College of Cardiology und der American Heart Association entwickelt und 2013 eingeführt wurden. Sie schätzen das Zehnjahresrisiko für ein erstes atherosklerotisches kardiovaskuläres Ereignis anhand von Alter, Geschlecht, Rasse, Cholesterinspiegel, Blutdruck, Diabetes und Raucherstatus ab.

Warum es wichtig ist

Sie sind der am weitesten verbreitete Risikorechner in den Vereinigten Staaten und bestimmen oft, wem eine Statintherapie angeboten wird – das Verständnis ihrer Grenzen erklärt, warum manchmal zusätzliche Tests erforderlich sind.

Definition

Eine große, randomisierte Studie zu Evacetrapib, die zwar das HDL-Cholesterin erheblich erhöhte und das LDL-Cholesterin senkte, aber dennoch das kardiovaskuläre Ergebnis bei Hochrisikopatienten nicht verbessern konnte, untermauert weiterhin die Ansicht, dass HDL-C eher ein Marker als ein kausaler Schutzfaktor ist.

Warum es wichtig ist

Es bekräftigt, warum die HDL-erhöhende Wirkung von Kokosnussöl kein nennenswerter kardiovaskulärer Nutzen ist.

Definition

ACCORD war eine große Studie, die untersuchte, ob eine sehr aggressive Senkung des Blutzuckerspiegels bei Menschen mit Typ-2-Diabetes Herzinfarkte verhindern würde.

Warum es wichtig ist

Das tat sie nicht, und in der intensiven Gruppe gab es mehr Todesfälle. Die Lehre daraus war, dass das Senken eines Wertes nicht automatisch dasselbe ist wie dem Patienten zu helfen – ein Thema, das sich durch die gesamte Kardiologie zieht.

Definition

Ein ACE-Hemmer (Angiotensin-Converting-Enzym-Hemmer) ist eine Medikamentenklasse, die den Blutdruck senkt und die Belastung des Herzens verringert, indem sie das Enzym blockiert, das die Blutgefäße verengt. ACE-Hemmer wurden Teil der Standardversorgung nach einem Herzinfarkt und gehören zu den Behandlungen, die der Artikel als erst nach dem bereits begonnenen anfänglichen Rückgang der Koronarmortalität eintreffend aufführt.

Warum es wichtig ist

ACE-Hemmer veranschaulichen, wie wirksame Medikamente das Überleben verbessern und ein erneutes Auftreten selbst nach einem Herzinfarkt verhindern können, was die Phase der 'pharmakologischen Konsolidierung' des Rückgangs darstellt.

Definition

Die napfförmige Gelenkpfanne im Becken, in die der Oberschenkelkopf passt und das Hüftgelenk bildet; ein Bruch des Acetabulums stört dieses Gelenk und kann die Gewichtsbelastung sowie die Funktion der unteren Extremität während der Genesung stark einschränken.

Warum es wichtig ist

Hüftfrakturen und Beckenverletzungen haben erhebliche Auswirkungen auf die kardiovaskuläre Rehabilitation, insbesondere bei älteren Sportlern, die versuchen, ihre Kondition aufrechtzuerhalten.

Definition

Ein hochreaktives und toxisches Zwischenprodukt, das entsteht, wenn Alkohol-Dehydrogenase Ethanol in der Leber abbaut; Acetaldehyd fördert oxidativen Stress, schädigt Zellverbindungen und übt direkte kardiotoxische Wirkungen aus, insbesondere bei Personen mit beeinträchtigter Aldehyd-Dehydrogenase-Aktivität.

Warum es wichtig ist

Es ist der Hauptverursacher der Giftwirkung hinter den direkten Schäden von Alkohol an den Herzmuskelzellen.

Definition

Akutes Koronarsyndrom (AKS) ist der Oberbegriff für jeden plötzlichen Abfall der Blutversorgung des Herzens – von instabiler Angina pectoris bis hin zu einem vollständigen Herzinfarkt –, der durch das plötzliche Aufreißen oder die Erosion einer Plaque verursacht wird.

Warum es wichtig ist

Die genaue Diagnose hängt von Blutuntersuchungen und einem EKG ab, aber das zugrunde liegende Ereignis ist dasselbe: Eine Plaque, die unauffällig in der Gefäßwand saß, bricht auf. Aus diesem Grund müssen neue oder sich verschlimmernde Brustschmerzen noch am selben Tag abgeklärt werden und nicht nach dem Abwarten-und-Beobachten-Prinzip.

Definition

Ein Metalloproteinase-Enzym, das die extrazelluläre Domäne membrangebundener Rezeptoren spaltet und sie in lösliche, zirkulierende Formen überführt; im Kontext der IL-6-Signalisierung spaltet ADAM17 den membrangebundenen IL-6-Rezeptor (mIL-6R), um die lösliche Form (sIL-6R) zu erzeugen, die eine breitere proinflammatorische Trans-Signalisierung im gesamten Körper ermöglicht.

Warum es wichtig ist

Die ADAM17-Aktivität bestimmt, wie viel IL-6-Signalübertragung die Gefäßwand erreicht – ein entscheidender Schritt dafür, ob sich Lipidablagerungen zu gefährlichen Plaque entwickeln.

Definition

ADAPTABLE war eine pragmatische, randomisierte Studie mit 15.076 Patienten mit bekannter atherosklerotischer Herz-Kreislauf-Erkrankung, in der 81 mg versus 325 mg Aspirin täglich verglichen wurden; sie ergab keinen signifikanten Unterschied bei den kardiovaskulären Endpunkten oder schweren Blutungen zwischen den beiden Dosen, was 81 mg als bevorzugte Erhaltungsdosis unterstützt.

Warum es wichtig ist

Es ist der größte direkte Kopf-an-Kopf-Vergleich der beiden häufigsten Aspirindosen und liefert direkte Erkenntnisse darüber, welche Dosis Patienten und Ärzte wählen sollten.

Definition

Die adaptive Intimaverdickung ist eine normale, nicht-pathologische fokale Verdickung der innersten Arterienschicht, die an Biegungen und Verzweigungspunkten als Reaktion auf eine gestörte Blutströmung auftritt; sie ist durch glatte Muskelzellen in einer Proteoglykan-Kollagen-Matrix gekennzeichnet und weist im Gegensatz zu atherosklerotischen Läsionen weder eine Lipidansammlung noch eine entzündliche Schaumzellinfiltration auf.

Warum es wichtig ist

Das Verständnis dieses Unterschieds trägt dazu bei zu verdeutlichen, warum nicht jede Verdickung einer Arterienwand eine Erkrankung ist – die Fehlklassifizierung als Atherosklerose hat in der Vergangenheit die Prävalenzschätzungen in die Höhe getrieben.

Definition

Zugesetzter Zucker ist Zucker, der bei der Verarbeitung oder beim Kochen in Lebensmittel gegeben wird, anstatt Zucker, der von Natur aus in Obst oder Milch vorkommt.

Warum es wichtig ist

Zu viel zugesetzter Zucker kann den Triglyceridspiegel erhöhen, Körperfett in der Bauchregion anlagern und den Körper in Richtung Insulinresistenz drängen. All dies erhöht die Wahrscheinlichkeit von Herzerkrankungen.

Definition

Das Gen, das für Alkoholdehydrogenase 1B kodiert, das Enzym, das für den ersten Schritt des Ethanolstoffwechsels verantwortlich ist; genetische Varianten in ADH1B (insbesondere rs1229984) beeinflussen, wie schnell Alkohol abgebaut wird, und werden häufig als instrumentelle Variablen in mendelianischen Randomisierungsstudien zu Alkohol und kardiovaskulärem Risiko verwendet.

Warum es wichtig ist

Die Anwendung in der Mendelschen Randomisierung ermöglicht es Forschern, die Auswirkungen von Alkohol ohne die Störfaktoren des Lebensstils zu untersuchen, die Beobachtungsstudien plagen.

Definition

Einnahmetreue bedeutet, dass Sie Ihre Medikamente tatsächlich so einnehmen, wie sie verschrieben wurden, Tag für Tag.

Warum es wichtig ist

Das ist wichtiger, als die meisten Menschen erkennen. Cholesterinmedikamente wirken, indem sie Ihre Partikelanzahl über viele Jahre hinweg senken. Das Auslassen von Dosen verringert den Nutzen nicht nur ein wenig – es kann den größten Teil zunichtemachen, da der Schutz von der Gesamtexposition im Laufe der Zeit herrührt.

Definition

Adipokine sind bioaktive Moleküle – einschließlich Leptin, Adiponektin, TNF-α und IL-6 –, die von Fettzellen ausgeschüttet werden und als Hormone oder Signalproteine wirken, um den Stoffwechsel, die Insulinsensitivität, Entzündungen und die Energiebalance im gesamten Körper zu regulieren.

Warum es wichtig ist

Das Wissen, dass Fettgewebe chemisch mit anderen Organen kommuniziert, hilft zu erklären, wie überschüssiges viszerales Fett systemische Erkrankungen weit entfernt vom Bauchraum antreiben kann.

Definition

Adiponektin ist ein Adipokin, das die Insulinsensitivität erhöht und die Fettsäureoxidation über eine AMPK-Aktivierung fördert; seine Konzentration im Blut sinkt mit zunehmendem viszeralen Fett, weshalb ein niedriger Adiponektinspiegel ein früher Indikator für ein kardiometabolisches Risiko ist.

Warum es wichtig ist

Adiponectinspiegel gewähren einen Einblick in die metabolische Gesundheit, den Gewichtsmessungen völlig übersehen.

Definition

Adjudication ist der Prozess, bei dem ein unabhängiges Komitee jedes gemeldete Ereignis in einer Studie überprüft und entscheidet, was tatsächlich passiert ist, ohne zu wissen, welche Behandlung der Patient erhalten hat.

Warum es wichtig ist

Es verhindert, dass Begeisterung das Ergebnis beeinflusst. Ob ein Krankenhausaufenthalt als Herzinfarkt gewertet wurde, sollte nicht davon abhängen, in welchem Studienarm sich der Patient befand.

Definition

AGEs sind Verbindungen, die entstehen, wenn Proteine oder Fette Zucker oder hohen Kochtemperaturen ausgesetzt werden; in bei starker Hitze gegartem Fleisch binden sie an einen Rezeptor namens RAGE auf Blutgefäßzellen, wodurch eine Entzündungskaskade ausgelöst wird. Der Artikel führt sie als eine von mehreren Komponenten von rotem Fleisch auf – neben gesättigten Fetten und Häm-Eisen –, die unabhängig von TMAO die kardiovaskuläre Gesundheit schädigen können.

Warum es wichtig ist

Sie veranschaulichen, warum die Isolierung von TMAO als 'den' schädlichen Inhaltsstoff in rotem Fleisch ein komplexes Ernährungsbild zu stark vereinfacht.

Definition

Eine Reihe langjähriger prospektiver Kohortenstudien, in denen die gesundheitlichen Ergebnisse bei Siebenten-Tags-Adventisten untersucht wurden – einer Bevölkerungsgruppe mit einem hohen Anteil an Vegetariern; zu den Ergebnissen gehört ein um 62% geringeres Risiko für Typ-2-Diabetes bei Veganern im Vergleich zu Nichtvegetariern, unabhängig vom Körpergewicht.

Warum es wichtig ist

Diese Studien liefern einige der stärksten epidemiologischen Belege dafür, dass eine pflanzliche Ernährung mit einem verringerten Risiko für chronische Krankheiten verbunden ist.

Definition

Eine große prospektive Kohortenstudie mit etwa 96.000 Siebenten-Tags-Adventisten in Nordamerika, die in der Ernährungsepidemiologie geschätzt wird, weil niedrige Raucher- und Alkoholkonsumraten in dieser Population wichtige verhaltensbedingte Störvariablen reduzieren, was eine klarere Bewertung von Ernährungsmustern hinsichtlich Mortalität und Krankheitsoutcomes ermöglicht.

Warum es wichtig ist

Ein Großteil der Belege, die für die gesundheitlichen Vorteile einer vegetarischen Ernährung angeführt werden, stammt direkt aus dieser Kohorte. Wenn man also weiß, worum es sich dabei handelt, hilft das bei der Beurteilung der Qualität dieser Behauptungen.

Definition

Die Adventitia ist die zähe äußerste Schicht einer Arterie, die größtenteils aus Bindegewebe, Nerven und den kleinen Blutgefäßen besteht, die die Gefäßwand versorgen.

Warum es wichtig ist

Es wurde lange Zeit als bloße Hülle betrachtet. Heute ist bekannt, dass es eine aktive Rolle bei Entzündungen und bei der Umformung einer Arterie während des Plaquewachstums spielt.

Definition

Eine Trainingsbelastung, die vollständig durch oxidativen Stoffwechsel aufrechterhalten wird und auf eine kontinuierliche Sauerstoffzufuhr zur ATP-Produktion angewiesen ist; der Stundenweltrekord im Radfahren ist so klassifiziert, da jede nennenswerte Verschiebung hin zu anaeroben Stoffwechselwegen die Energiereserven schnell erschöpft und die Leistungsfähigkeit beeinträchtigt.

Warum es wichtig ist

Die aerobe Kapazität ist ein zentraler Maßstab für die kardiovaskuläre Gesundheit und ein Prädiktor für langfristige Herzerkrankungen.

Definition

Aerobic ist eine gleichmäßige Aktivität, bei der man eine Weile lang stärker atmen muss, wie schnelles Gehen, Radfahren, Schwimmen oder Joggen.

Warum es wichtig ist

Es verbessert die Fitness, den Blutdruck, den Blutzucker und die Funktion Ihrer Blutgefäße. Es ist eines der besten Dinge, die Sie für Ihre Gesundheit tun können. Es senkt jedoch Ihre ApoB-Partikelanzahl nicht sehr stark, weshalb sehr fitte Menschen dennoch Plaque haben können.

Definition

Der Stoffwechselprozess, bei dem Zellen, einschließlich Neuronen, Glukose in Gegenwart von Sauerstoff abbauen, um ATP-Energie zu erzeugen; Östrogen fördert diesen effizienten Stoffwechselweg im Gehirn, und sein Rückgang während der Menopause kann das Gehirn zu weniger effizienten Energiequellen zwingen.

Warum es wichtig ist

Dies ist der spezifische Energiemechanismus, den das Gehirn verliert, wenn der Östrogenspiegel sinkt, was ihn zu einem zentralen Element für das Verständnis von Gehirnnebel in den Wechseljahren macht.

Definition

Eine strukturierte Trainingsmethode, bei der kurze Intervalle mit hoher Belastung und aktive Erholungsphasen einander abwechseln – zum Beispiel vier Minuten nahezu maximale Anstrengung gefolgt von drei Minuten leichter Betätigung –, was in klinischen Studien gezeigt hat, dass sie die Vorhofflimmerlast senkt und die VO₂ max effektiver verbessert als kontinuierliches Ausdauertraining.

Warum es wichtig ist

AIT ist das bevorzugte Bewegungstraining für behandelte Vorhofflimmerpatienten, da es die Fitness erhält und gleichzeitig die chronische Volumenbelastung vermeidet, die zu weiterer atrialer Narbenbildung führt.

Definition

Der Widerstand, den Luft auf ein sich bewegendes Objekt ausübt; in der Höhe verringert eine geringere Luftdichte den aerodynamischen Widerstand, weshalb Velodrom-Rekorde trotz der geringeren Sauerstoffverfügbarkeit häufig auf hochgelegenen Bahnen aufgestellt werden.

Warum es wichtig ist

Es erklärt die strategische Wahl von Aguascalientes für den Versuch – weniger Luftwiderstand bedeutet höhere Geschwindigkeiten bei gleicher Leistung.

Definition

Ein Spezialist, der das Strömungsprofil eines Sportlers und seiner Ausrüstung – einschließlich Körperhaltung, Helm, Rennanzug und Laufrädern – analysiert und optimiert, um den Luftwiderstand zu minimieren und bei einer bestimmten Leistung die Geschwindigkeit zu maximieren.

Warum es wichtig ist

Bei einem Einstunden-Zeitfahren ist der Luftwiderstand oft die mit Abstand größte Determinante für die zurückgelegte Strecke, weshalb dieser Faktor bei Rekordversuchen eine zentrale Rolle spielt.

Definition

Eine Kennzahl dafür, wie viel Zeit sich eine Person in Vorhofflimmern befindet, ausgedrückt als Prozentsatz oder Gesamtdauer über einen Überwachungszeitraum; die Katheterablation zielt darauf ab, die Vorhofflimmerlast zu reduzieren, selbst wenn sie das Vorhofflimmern nicht vollständig beseitigt.

Warum es wichtig ist

Hilft den Lesern zu verstehen, dass der Ablationserfolg oft eher partiell als absolut ist.

Definition

Das Wiederauftreten von Vorhofflimmern nach einer Phase erfolgreicher Rhythmuskontrolle, unabhängig davon, ob diese durch Ablation oder medikamentöse Behandlung erreicht wurde; bei Ausdauersportlern liegen die Rezidivraten nach einer einmaligen Ablation bei etwa 40%, wobei eine anhaltende Vorhofvergrößerung und Fibrose die wichtigsten Prädiktoren sind.

Warum es wichtig ist

Das Wiederholungsrisiko ist die zentrale klinische Frage, die der Artikel für Sportler behandelt, die eine Ablation in Betracht ziehen.

Definition

Der Agatston-Score ist die spezifische Formel, mit der ein Calcium-CT-Scan in eine einzige Zahl umgewandelt wird, wobei jede Kalkablagerung nach ihrer Dichte und Größe gewichtet wird.

Warum es wichtig ist

Wenn jemand sagt "Mein Kalziumwert liegt bei 150", ist dies die Skala, die gemeint ist. Da sie die Dichte gewichtet, können zwei Personen mit ähnlichen Kalziummengen unterschiedliche Werte haben.

Definition

Agatston-Einheiten sind die standardisierten Bewertungseinheiten zur Quantifizierung von Koronarkalk in einem CT-Scan, berechnet aus der Dichte und der Fläche verkalkter Läsionen; ein Score von Null zeigt keine nachweisbare verkalkte Plaque an, während Scores von 300 oder mehr – die in der UK-Masters-Studie ausschließlich in der Athletengruppe gefunden wurden – eine starke Verkalkung widerspiegeln.

Warum es wichtig ist

Sie sind die universelle Währung für die Berichterstattung über Kalzium-Scan-Ergebnisse, daher hilft Ihnen das Verständnis der Skala bei der Interpretation, was Ihr eigener Wert bedeutet.

Definition

Altersstandardisierte Mortalität ist eine Sterberate, die statistisch korrigiert wurde, damit Unterschiede in der Altersstruktur von Bevölkerungen – oder derselben Bevölkerung im Zeitverlauf – Vergleiche nicht verzerren. Sie beantwortet die Frage: Hätte sich die Sterberate verändert, wenn die Alterszusammensetzung konstant geblieben wäre?

Warum es wichtig ist

Da Todesfälle infolge eines Herzinfarkts bei älteren Menschen weitaus häufiger vorkommen, ist ein Vergleich der rohen Todeszahlen über Jahrzehnte hinweg ohne diese Anpassung irreführend – er bildet die Grundlage für die im Artikel geäußerte Behauptung eines Rückgangs um 81%.

Definition

Ein standardisiertes Nahrungsergänzungsmittel, das durch verlängerte Kaltreifung von rohem Knoblauch hergestellt wird und wasserlösliche Organoschwefelverbindungen anreichert; randomisierte CT-Bildgebungsstudien haben gezeigt, dass es weiche, rupturgefährdete Koronarplaques (Plaques mit geringer Dämpfung) bei Patienten mit metabolischem Syndrom reduzieren kann.

Warum es wichtig ist

AGE verfügt derzeit über stärkere direkte Plaque-Bildgebungsnachweise beim Menschen als Nattokinase, was es zu einem nützlichen Vergleichspunkt für jeden macht, der Nahrungsergänzungsmittel bewertet.

Definition

In the context of atherosclerosis, aggregation refers to the clumping together of ApoB-containing lipoprotein particles after they have been retained by proteoglycans in the artery wall, a step that triggers macrophage engulfment and foam-cell formation.

Warum es wichtig ist

Understanding aggregation shifts the explanation of plaque-building from simple 'oxidised fat' to a more evidence-supported retention-and-clumping mechanism.

Definition

AI-QCT is an advanced coronary CT analysis technique that uses artificial intelligence to quantify and characterize plaque components—including non-calcified and low-attenuation plaques—beyond what a standard CAC score can detect.

Warum es wichtig ist

It explains the 'super-scan' technology that can find dangerous soft plaque even when a CAC score reads zero.

Definition

Eine randomisierte Studie, bei der Patienten mit bekannter kardiovaskulärer Erkrankung zusätzlich zu einer intensiven Statintherapie Retard-Niacin erhielten; trotz Erhöhung des HDL-C bewirkte Niacin keine Reduktion kardiovaskulärer Ereignisse, was zu den Belegen beiträgt, dass eine HDL-C-Erhöhung keinen kausalen kardioprotektiven Effekt hat.

Warum es wichtig ist

Another piece of evidence that coconut oil's HDL-raising property should not be interpreted as heart protection.

Definition

Air density is the mass of air per unit volume; at high altitude or elevated temperature, air is less dense, which reduces the aerodynamic drag a cyclist must overcome and allows a higher speed for the same power output.

Warum es wichtig ist

Lower aerodynamic drag at altitude is one reason high-altitude velodromes are favoured for record attempts, illustrating how environmental physics interact with cardiovascular output.

Definition

Alkohol ist der Inhaltsstoff in Bier, Wein und Spirituosen, der sie berauschend macht.

Warum es wichtig ist

For years people were told a daily glass of wine was good for the heart. Newer and better studies have taken that idea apart. The people who drank lightly were healthier for other reasons. Alcohol raises blood pressure and triglycerides, and there is no amount that doctors recommend for heart protection.

Definition

A form of dilated cardiomyopathy caused by chronic heavy alcohol use—typically defined as approximately 80 grams of ethanol daily for at least five years—in which sustained ethanol toxicity weakens and enlarges the heart muscle; unlike many causes of heart failure, ACM is often substantially reversible with sustained abstinence.

Warum es wichtig ist

Its reversibility upon stopping alcohol offers a rare example of meaningful heart-function recovery through lifestyle change alone.

Definition

The gene encoding aldehyde dehydrogenase 2, which converts acetaldehyde—a toxic ethanol metabolite—into harmless acetate; individuals carrying the ALDH2*2 variant, common in East Asian populations, have impaired enzyme activity, leading to acetaldehyde accumulation, flushing syndrome, and heightened cardiotoxic risk when drinking.

Warum es wichtig ist

This variant illustrates how genetics shapes individual vulnerability to alcohol-related heart harm.

Definition

Alirocumab, sold as Praluent, is an injectable antibody that blocks PCSK9, given every two to four weeks.

Warum es wichtig ist

It lowers LDL and ApoB by roughly half on top of a statin, and reduced repeat events in patients recovering from a heart attack.

Definition

Activin receptor-like kinase 1 is an endothelial receptor implicated, alongside SR-B1, in the receptor-mediated transcytosis of apoB-containing lipoprotein particles across the endothelial barrier into the arterial intima, a concentration-dependent process that represents an early step in atherogenesis.

Warum es wichtig ist

It identifies a specific biological gateway through which circulating particles enter the artery wall, reinforcing why particle concentration over time matters.

Definition

Gesamtmortalität bedeutet Tod durch jegliche Ursache und nicht nur durch Herzerkrankungen – das umfassendste und am schwersten zu manipulierende Ergebnis, das eine Studie messen kann.

Warum es wichtig ist

Some treatments improve a narrow cardiovascular number while doing nothing for, or even worsening, your overall odds of dying from anything else. A trial that moves all-cause mortality carries more weight than one that only reports a cardiovascular-specific endpoint.

Definition

Alpha-linolenic acid (ALA, 18:3n-3) is a plant-derived omega-3 polyunsaturated fatty acid found notably in canola oil and flaxseed; it is chemically distinct from the omega-6 linoleic acid that dominates most other seed oils, which is why canola oil is not considered interchangeable with high-linoleic oils.

Warum es wichtig ist

Grouping canola with other seed oils without acknowledging its omega-3 content distorts the nutritional comparison.

Definition

A prescribing strategy in which a statin is taken every other day rather than daily, used clinically to reduce muscle symptoms in intolerant patients while preserving a meaningful portion of LDL-lowering effect, particularly with longer-half-life statins.

Warum es wichtig ist

A practical flexibility option athletes can discuss with their clinician when daily statin use causes symptoms.

Definition

A sealed sleeping enclosure that simulates the reduced oxygen levels found at high altitude by lowering the partial pressure of oxygen inside; athletes use it to stimulate red blood cell production and improve oxygen-carrying capacity without relocating permanently to altitude.

Warum es wichtig ist

Improved oxygen delivery directly affects cardiovascular efficiency and endurance performance, making altitude simulation a practical training tool for heart-healthy athletes.

Definition

A performance strategy in which endurance athletes train at elevation — in this case the Bicentenario Velodrome in Aguascalientes, Mexico, at roughly 1,800 m above sea level — to stimulate adaptations such as increased red blood cell production that enhance oxygen delivery.

Warum es wichtig ist

Altitude physiology is relevant to understanding how even elite, highly trained athletes can harbor undetected coronary artery disease.

Definition

Competing or training at elevation—such as the Bicentenario Velodrome in Aguascalientes at roughly 6,000 feet—where thinner air reduces aerodynamic drag, allowing cyclists to travel farther in an hour than at sea level, but also causing faster fatigue due to lower oxygen availability.

Warum es wichtig ist

Megdal chose a high-altitude venue specifically to exploit reduced air resistance, while managing the physiological cost of racing at elevation.

Definition

An Alu element is a type of short, repetitive 'jumping gene' abundant in primate genomes that can insert itself into new genomic locations; the insertion of an Alu element into the CMAH locus caused the 92-base-pair deletion that permanently inactivated Neu5Gc synthesis in ancestral humans.

Warum es wichtig ist

A single random genomic event caused by this mobile DNA sequence is proposed to be the root cause of human-specific susceptibility to red-meat-associated heart disease.

Definition

Alzheimer's disease is a brain illness that slowly destroys memory and thinking.

Warum es wichtig ist

It used to be treated as completely separate from heart disease. Newer research suggests the two share more than we thought, including the same cholesterol-carrying particles and damage to the tiny blood vessels that feed the brain.

Definition

The AMORIS (Apolipoprotein MOrtality RISk) study was a large Swedish prospective cohort that measured ApoB and other lipid fractions and demonstrated that ApoB was a stronger predictor of cardiovascular events than LDL-C, particularly in cases of discordance between the two measures.

Warum es wichtig ist

AMORIS is one of the foundational studies demonstrating that counting atherogenic particles matters more than measuring cholesterol mass alone.

Definition

AMP-activated protein kinase is a cellular energy sensor that, when activated, suppresses cholesterol and fatty acid synthesis and exerts anti-inflammatory effects; bempedoic acid has been proposed to activate this pathway as part of its mechanism beyond simple LDL lowering.

Warum es wichtig ist

It is cited as a potential explanation for bempedoic acid's hsCRP-lowering effect, which is distinct from statins' mechanism.

Definition

The gene encoding salivary amylase, the enzyme that begins starch digestion in the mouth; humans carry multiple copies of this gene, and a 2024 study in Science found that its duplication dates back nearly 800,000 years, suggesting starch digestion was a core human metabolic strategy long before agriculture.

Warum es wichtig ist

Understanding our evolutionary capacity to process carbohydrates helps explain why blanket low-carb or meat-only dietary prescriptions may not align with human biology.

Definition

The amyloid hypothesis is the long-dominant theory of Alzheimer's disease holding that abnormal accumulation of amyloid-beta protein plaques in the brain is the primary initiating cause of neurodegeneration and cognitive decline.

Warum es wichtig ist

Understanding this hypothesis is essential context for evaluating whether vascular disease — not amyloid — may be the earlier, upstream driver of Alzheimer's.

Definition

Anabolic resistance is when older muscles stop responding well to protein. A younger person can eat a modest amount of protein and build muscle. An older person eating the same amount may build almost none.

Warum es wichtig ist

This is why protein needs go up with age rather than down, especially for older athletes trying to hold onto muscle.

Definition

Angina is chest discomfort that happens when the heart muscle isn't getting enough oxygen. People describe it as pressure, tightness, squeezing, or burning, and it can spread to the arm, neck, or jaw.

Warum es wichtig ist

Not everyone gets classic chest pain. Some people just feel short of breath, unusually tired, or sick to their stomach. Very fit people sometimes feel almost nothing at all, which is exactly what makes their disease dangerous.

Definition

Angiogenesis is the sprouting of new capillaries from existing microvessels, driven primarily by tissue hypoxia through HIF-1α–mediated transcription of vascular endothelial growth factor (VEGF). Because capillaries lack a muscular wall, they improve local oxygen diffusion but cannot compensate for a significant obstruction in a large coronary artery.

Warum es wichtig ist

Understanding the difference between angiogenesis and arteriogenesis clarifies why growing new tiny vessels is not enough to protect the heart during intense exercise.

Definition

Ein Angiogramm ist eine Untersuchung, bei der Ärzte einen dünnen Schlauch in Ihre Arterien einführen und Kontrastmittel injizieren, damit das Innere der Arterien auf einem Röntgenbild sichtbar wird.

Warum es wichtig ist

It shows the open channel that blood flows through. Its big weakness is that it does not show the artery wall — and plaque grows in the wall. An artery can look almost normal on an angiogram while carrying a lot of disease.

Definition

Als angiographische Regression bezeichnet man eine messbare Verringerung der Größe einer Koronararterienverengung, wie sie in der Röntgenbildgebung der Herzkranzgefäße zu sehen ist; der Artikel führt das Lifestyle Heart Trial als Beweis dafür an, dass eine intensive, auf pflanzlichen Lebensmitteln basierende Ernährung und Lebensstiländerungen diesen Effekt hervorrufen können.

Warum es wichtig ist

It is the scientific term for what the article describes as 'shrinking blockages,' giving readers a precise label for this clinically important phenomenon.

Definition

Die Angioplastie ist ein Verfahren, bei dem ein kleiner Ballon in einer verengten Arterie aufgeblasen wird, um die Blockade aufzudrücken. Normalerweise wird ein Stent eingesetzt, um sie offen zu halten.

Warum es wichtig ist

It is very good at relieving symptoms and saving lives during a heart attack. What it does not do is fix the disease itself, which is spread throughout all your arteries, not just the one spot that got fixed.

Definition

ANGPTL3 ist ein Protein, das den Abbau von Triglycerid-reichen Partikeln im Blut verlangsamt.

Warum es wichtig ist

People born with a broken copy have low triglycerides, low LDL, and less heart disease — which made it an obvious drug target. Evinacumab blocks it and is used in the most severe inherited cholesterol disorders.

Definition

An anomalous coronary artery is a congenital malformation in which a coronary artery originates from the wrong location or follows an abnormal path; during intense exertion the vessel can be compressed, reducing blood flow to the heart muscle and triggering ischemia or fatal arrhythmia.

Warum es wichtig ist

It is a leading structural cause of exertional sudden death in young athletes and is poorly detected by electrocardiography, requiring imaging for diagnosis.

Definition

Antagonistic pleiotropy is an evolutionary hypothesis in which a gene or biological trait confers a survival or reproductive advantage early in life while becoming harmful later; applied to cardiovascular disease, it suggests that lipid-transport systems that may have offered benefits in ancestral environments become disadvantageous across long modern lifespans of caloric abundance.

Warum es wichtig ist

It offers one explanation for why humans are biologically susceptible to atherosclerosis despite its ultimately lethal consequences.

Definition

Anti-HMGCR immune-mediated necrotizing myopathy is a rare autoimmune muscle disease, affecting roughly 2 per 100,000 statin users per year, in which the body generates antibodies against HMG-CoA reductase; unlike ordinary statin myalgia, it persists and worsens after the drug is stopped and requires immunosuppressive treatment.

Warum es wichtig ist

This condition is often mistaken for ordinary statin muscle pain, but stopping the statin alone will not resolve it — recognizing it early can prevent severe permanent muscle damage.

Definition

The ability of moderate alcohol consumption to reduce clot formation through mechanisms including decreased fibrinogen levels and reduced platelet reactivity; while this may slightly lower ischemic stroke risk, the same blood-thinning effect raises the risk of hemorrhagic stroke, illustrating alcohol's double-edged cardiovascular profile.

Warum es wichtig ist

Understanding this trade-off helps explain why any apparent benefit for one type of stroke comes at the cost of increased risk for another.

Definition

An anticoagulant reduces the blood's ability to clot by interfering with clotting proteins. Warfarin and apixaban are examples.

Warum es wichtig ist

It is a different tool from aspirin, which acts on platelets instead. Anticoagulants are used for atrial fibrillation and clots in veins; using one where the other is needed leaves a person poorly protected.

Definition

Ein Antihypertensivum ist jedes Medikament, das zur Senkung von Bluthochdruck eingesetzt wird. Der Artikel unterscheidet Antihypertensiva, die ab den 1970er Jahren weit verbreitet wurden, von Statinen und stellt fest, dass Blutdruckmittel bereits lange vor der Verfügbarkeit einer Statine-Therapie zum Rückgang der koronaren Mortalität beigetragen haben.

Warum es wichtig ist

Blood-pressure control through antihypertensives is one of the most evidence-backed ways to prevent heart attacks and strokes, making deterioration in population blood-pressure control a key reason the recent stall in progress is worrying.

Definition

An antioxidant is a substance that mops up damaging molecules in the body. Vitamin E and beta-carotene are examples.

Warum es wichtig ist

The theory sounded great, and antioxidant pills were popular for years. But when researchers actually tested them in large trials, they did not prevent heart attacks, and a few appeared to cause harm. It is a good reminder that a sensible-sounding idea still has to be tested.

Definition

Die Thrombozytenaggregationshemmung nutzt Medikamente, die die Verklumpung von Blutplättchen unwahrscheinlicher machen – Aspirin, Clopidogrel, Ticagrelor.

Warum es wichtig ist

It is the mainstay after a stent or a heart attack, where a clot forming on a damaged or instrumented surface is the immediate danger. The benefit is always weighed against bleeding.

Definition

The Antithrombotic Trialists' Collaboration is a landmark individual-participant meta-analysis that pooled data from major aspirin trials; it found that aspirin's proportional reduction in vascular events is similar in primary and secondary prevention, but the absolute benefit in primary prevention is far smaller—roughly 0.06% per year—because baseline event rates are much lower.

Warum es wichtig ist

This analysis is the statistical foundation for why aspirin recommendations differ so sharply between people with and without established heart disease.

Definition

A prescription oral antiviral drug combining nirmatrelvir and ritonavir that inhibits SARS-CoV-2 replication; it is typically prescribed early in infection to reduce the severity and duration of COVID-19, including in individuals with underlying conditions such as cardiovascular disease.

Warum es wichtig ist

Cardiovascular disease patients are at elevated risk from COVID-19, making antiviral treatment options particularly relevant.

Definition

Die Aorta ist die größte Arterie in Ihrem Körper. Sie transportiert Blut aus dem Herzen heraus und durch die Brust und den Bauch nach unten, wobei sie überall Abzweigungen abgibt.

Warum es wichtig ist

Because it handles so much pressure, it can stretch, stiffen with age, or develop a bulge. In athletes, the aorta is often slightly larger than average, which raises questions about what counts as normal.

Definition

An aortic aneurysm is a bulge in the wall of the aorta, like a weak spot on a garden hose.

Warum es wichtig ist

Small ones often cause no trouble and are simply watched over time. Larger ones can tear or burst, which is a life-threatening emergency. Size and how fast it is growing are what doctors watch most closely.

Definition

The capacity of the aorta to expand during systole and recoil during diastole, acting as a pressure buffer that smooths pulsatile blood flow; compliance decreases as collagen cross-linking and fibrosis stiffen the arterial wall with inactivity or aging.

Warum es wichtig ist

Loss of aortic compliance is the root mechanical cause of the cardiovascular aging discussed throughout this article and can be partially restored by committed exercise.

Definition

Aortic dissection is a life-threatening emergency in which a tear in the aortic intima allows blood to split through the medial layer, creating a false lumen; it presents as sudden, severe tearing or ripping chest or back pain that is at its worst from the very first second, and may cause unequal pulses between arms.

Warum es wichtig ist

Recognizing the difference between dissection pain and ordinary exertional soreness can be the difference between life and death for an athlete with undiagnosed aortic disease.

Definition

The section of the aorta immediately above the heart where it exits the left ventricle; it is a common site for early atherosclerotic plaque formation and is routinely measured in mouse models of heart disease to quantify plaque burden.

Warum es wichtig ist

Plaque measured at the aortic root is a standard benchmark for judging how severely atherosclerosis has progressed.

Definition

Aortic stenosis is a narrowing or hardening of the aortic valve — the heart's primary outflow valve — that obstructs blood flow from the left ventricle to the aorta; elevated Lp(a) is recognised as the second leading cause of calcific aortic stenosis.

Warum es wichtig ist

It shows that Lp(a) harms the heart beyond arteries alone, making Lp(a) testing relevant even for people focused on valve health.

Definition

The aortic valve is the one-way gate between the heart's main pumping chamber and the aorta.

Warum es wichtig ist

It can narrow with age as calcium builds up on it, or leak. Elevated Lp(a) is one of the few known risk factors for the narrowing, connecting valve disease to the same particle biology as plaque.

Definition

Aortic wall stress is the mechanical tension per unit area acting on the aortic wall, calculated from transmural pressure, vessel radius, and wall thickness; cardiac MRI studies in patients with thoracic aortic disease have measured peak AWS of 257–323 kPa during moderate aerobic exercise, well below the 850–1,200 kPa rupture threshold.

Warum es wichtig ist

AWS is the key measurable variable that determines how close an aneurysmal aorta is to mechanical failure during any given level of physical exertion.

Definition

Aortopathy is a broad clinical term encompassing any disease process that compromises the structural integrity or function of the aortic wall, including both inflammatory-atherosclerotic conditions such as AAA and heritable structural disorders such as Marfan syndrome.

Warum es wichtig ist

Athletes with undiagnosed aortopathy face unique risks during intense exertion that would not apply to a healthy individual with a similarly enlarged aorta.

Definition

A large glycoprotein chain attached to the LDL core of a lipoprotein(a) particle whose structure closely resembles plasminogen, thereby inhibiting the body's natural clot-dissolving system and contributing to thrombotic risk on top of Lp(a)'s atherogenic and pro-inflammatory effects.

Warum es wichtig ist

It explains the third prong of Lp(a)'s 'triple threat'—beyond carrying cholesterol and oxidized phospholipids, it actively interferes with clot breakdown.

Definition

ApoB ist ein Protein, das sich auf der Außenseite jedes Cholesterinteilchens befindet, das in Ihrer Arterienwand stecken bleiben und Plaque verursachen kann. Jedes dieser Teilchen trägt genau ein ApoB.

Warum es wichtig ist

That one-to-one rule is what makes it so useful. Measuring ApoB counts the particles. A standard cholesterol test measures the cargo inside the particles instead, which can be misleading if your particles are unusually empty or full.

Definition

Discordance is when your ApoB and your LDL cholesterol tell two different stories. Your LDL looks fine, but your particle count is high — or the reverse.

Warum es wichtig ist

It happens when your particles are carrying less cholesterol than usual, so it takes more of them to add up to the same number on the lab report. It is especially common in people with insulin resistance or diabetes. When the two disagree, ApoB is the one that tracks your actual risk.

Definition

The APOB R3500Q (p.Arg3527Gln) founder variant is a mutation in the APOB gene found in roughly 12% of Pennsylvania Old Order Amish — far above its 0.1–0.4% prevalence in white European populations — that causes familial defective ApoB-100 and persistently elevated LDL-C from birth.

Warum es wichtig ist

This variant serves as a natural experiment showing that lifelong LDL elevation leads to a dramatically higher burden of coronary calcification even in a population with a healthy lifestyle and favorable genetic background.

Definition

ApoB-100 ist die Full-Length-Form von Apolipoprotein B, die auf LDL, VLDL, IDL und Remnant-Lipoproteinen zu finden ist; ihre positiv geladenen Aminosäuredomänen binden ionisch an negativ geladene Proteoglykan-Seitenketten in der Arterienwand, wodurch das Partikel physisch in der Intima festgehalten und die Plaquebildung eingeleitet wird.

Warum es wichtig ist

It is the molecular 'hook' that locks harmful particles inside artery walls—understanding it explains why particle count matters more than cholesterol weight alone.

Definition

ApoB-48 is a truncated isoform of apolipoprotein B produced in the intestine and found exclusively on chylomicrons and their remnants; unlike ApoB-100, it is not measured by standard clinical ApoB assays in the fasting state, meaning routine ApoB tests reflect atherogenic particle burden from liver-derived lipoproteins rather than dietary fat absorption.

Warum es wichtig ist

Knowing this isoform exists clarifies what a standard ApoB blood test does and does not count, so you can interpret your results accurately.

Definition

Lipoproteine – einschließlich LDL, IDL, VLDL und deren Remnants –, die jeweils ein Molekül Apolipoprotein B an ihrer Oberfläche tragen; die Partikelanzahl (und nicht allein die Cholesterinmasse) ist ein Haupttreiber der Atherosklerose, da jedes Partikel in der Arterienwand retiniert werden kann.

Warum es wichtig ist

The article repeatedly explains that metabolic 'wins' on keto do not offset a rise in apoB/LDL, making this concept central to the keto-vs-WFPB comparison.

Definition

ApoB-Jahre ist ein vorgeschlagener Forschungsindikator, der die kumulative Apolipoprotein-B-Exposition im Zeitverlauf darstellt und als Fläche unter der ApoB-対-Alter-Kurve in mg/dL·Jahre ausgedrückt wird; sie soll die integrierte atherogene Partikelbelastung direkter erfassen als jede einzelne Messung, wurde jedoch noch nicht als klinisches Instrument oder Behandlungsschwelle validiert.

Warum es wichtig ist

Understanding that lifetime particle exposure — not just today's number — drives plaque build-up reframes why early prevention matters.

Definition

A lipid risk metric comparing the concentration of ApoB (reflecting all atherogenic particles) to ApoA1 (reflecting HDL, the primary reverse-cholesterol-transport particle); used in INTERHEART as a proxy for dyslipidemia, it had an odds ratio of 3.43 for myocardial infarction and the highest population attributable risk of any single risk factor studied.

Warum es wichtig ist

It captures both the 'bad' particle burden and the 'good' particle capacity in a single number, offering a more complete picture of lipid-related risk than LDL-C alone.

Definition

APOC3 ist das Gen für ein Protein, das den Abbau von Triglycerid-reichen Partikeln aus Ihrem Blut blockiert.

Warum es wichtig ist

Less of it means faster clearance. People carrying a naturally broken copy have lower triglycerides and fewer heart attacks, which is strong evidence that these particles are causing harm rather than just tagging along.

Definition

APOE ist ein Gen, das in drei gängigen Versionen vorkommt, die als E2, E3 und E4 bezeichnet werden. Es steuert, wie effizient Ihre Leber übrig gebliebene Fettpartikel abbaut.

Warum es wichtig ist

The E4 version raises both cholesterol and Alzheimer's risk, which is one of the threads connecting heart disease and brain disease. Knowing your type does not change treatment much, but it can explain an otherwise puzzling lipid pattern.

Definition

The APOE ε4 allele is a common variant of the apolipoprotein E gene and the largest known common genetic risk factor for late-onset Alzheimer's disease; it promotes cerebrovascular damage and blood-brain barrier breakdown independently of its effects on amyloid and tau.

Warum es wichtig ist

The article argues APOE ε4 acts substantially through vascular pathways, bridging systemic lipoprotein biology and brain disease and supporting the broader vascular hypothesis.

Definition

An apolipoprotein is a protein attached to a fat-carrying particle in your blood. Fat and water don't mix, so these proteins act like a wrapper that lets fat travel safely through the bloodstream.

Warum es wichtig ist

Different wrappers mark different kinds of particles. ApoB marks the harmful ones. ApoA-I marks HDL. Knowing which wrapper you are measuring tells you which particles you are counting.

Definition

Apolipoprotein A-I is the main structural protein of HDL particles, roughly the HDL equivalent of what ApoB is for the harmful ones.

Warum es wichtig ist

It carries out the actual work of collecting cholesterol from cells. Measuring it gives a slightly better picture of HDL function than the cholesterol number alone, though neither has proven useful as a treatment target.

Definition

Apolipoprotein E is a protein that serves as the primary cholesterol carrier within the brain, shuttling cholesterol from cholesterol-synthesizing astrocytes to neurons via a brain-specific lipoprotein system entirely separate from plasma lipoproteins.

Warum es wichtig ist

Its brain-specific role in cholesterol transport is distinct from its well-known role in plasma lipid metabolism and Alzheimer's disease risk.

Definition

Arachidonic acid is a long-chain omega-6 fatty acid produced in the body from linoleic acid; it serves as a precursor to both pro-inflammatory and anti-inflammatory signaling molecules called eicosanoids, meaning its role in inflammation is more complex than the simple 'seed oils cause inflammation' narrative suggests.

Warum es wichtig ist

It is the key intermediate in the proposed inflammatory pathway linking seed oils to heart disease, so knowing what it actually does clarifies why that theory is incomplete.

Definition

In cardiovascular lipidology, area under the curve refers to the cumulative, time-integrated exposure to atherogenic lipoproteins over a lifetime; it captures the idea that decades of moderately elevated LDL-C or ApoB deliver far more total arterial damage than a brief period of very high levels.

Warum es wichtig ist

This concept explains why starting lipid-lowering therapy at 30 rather than 50 can fundamentally change long-term heart-disease risk.

Definition

Arginine is an amino acid found in whole foods such as walnuts that serves as the biochemical precursor the body uses to synthesize nitric oxide, thereby supporting endothelial relaxation and healthy blood vessel dilation.

Warum es wichtig ist

Its presence in whole-food sources—but not in refined oils—helps explain why whole walnuts preserve vascular function while extracted oils impair it.

Definition

ARIC, die Atherosclerosis Risk in Communities-Studie, begleitet seit den späten 1980er Jahren Tausende amerikanische Erwachsene.

Warum es wichtig ist

Decades of follow-up let researchers watch risk factors measured in middle age play out into actual events much later. It is one of the studies behind the idea that exposure over time, not a single reading, is what counts.

Definition

Arrhythmogenic cardiomyopathy is an inherited disease, often caused by variants in desmosomal proteins such as plakophilin-2, in which heart muscle is progressively replaced by fatty or fibrous tissue, creating an electrical substrate for life-threatening ventricular arrhythmias; endurance exercise volume is associated with earlier and more severe disease expression.

Warum es wichtig ist

It is one of the leading causes of exercise-related sudden death in young people, and exercise itself can accelerate the underlying disease process.

Definition

Structural or electrical changes in heart tissue — such as enlarged atria and patchy fibrosis — that make the heart susceptible to sustaining an abnormal rhythm; in athletes, years of high-volume training can create such a substrate even in the absence of symptoms.

Warum es wichtig ist

Explains why AF tends to recur in athletes even after successful ablation.

Definition

ARRIVE was a randomized placebo-controlled trial of 100 mg aspirin daily in roughly 12,500 moderate-cardiovascular-risk adults without diabetes; it found no significant reduction in the primary cardiovascular composite endpoint and more gastrointestinal bleeding, partly because actual event rates were far lower than anticipated due to widespread statin and antihypertensive use.

Warum es wichtig ist

ARRIVE illustrates how improvements in other preventive treatments have reduced the baseline risk that made aspirin useful, changing the benefit–risk equation.

Definition

Die Ablagerung von Kalziumkristallen in der Arterienwand, die das Gefäß versteift und bei Koronararterien als Marker für die atherosklerotische Belastung dient; einige Hinweise deuten darauf hin, dass Vitamin K2 dazu beitragen kann, deren Fortschreiten zu hemmen.

Warum es wichtig ist

Understanding calcification helps explain why vitamin K2 is studied as a cardiovascular supplement and why a high calcium score signals elevated risk.

Definition

Die physikalische Entfernung von Cholesterin und anderen Lipiden aus der Arterienwand, die in nicht-menschlichen Primatenmodellen nach einer Einschränkung der Nahrungsfette histologisch beobachtet wurde; sie stellt den frühesten und grundlegendsten Schritt bei der strukturellen Plaqueregress dar.

Warum es wichtig ist

It confirms that the regression seen in imaging trials reflects a real biological change in artery composition, not just a measurement artifact.

Definition

A deposit within the artery wall made up of lipids, immune cells, cellular debris, and fibrous tissue that accumulates over time and can narrow or block blood flow; also called an atherosclerotic lesion or atheroma.

Warum es wichtig ist

Plaque formation is the central process linking microplastic exposure to heart attack and stroke risk in this study.

Definition

Remodeling bezeichnet die Art und Weise, wie sich die Form einer Arterie verändert, wenn sich Plaque ansammelt. Oft wölbt sich die Arterie nach außen, um Platz zu schaffen, wodurch die Öffnung in der Mitte breit genug für den Blutfluss bleibt.

Warum es wichtig ist

This is why heart disease can hide for decades. The artery is quietly filling with plaque, but because it expanded outward, tests that only look at the opening say everything is fine.

Definition

Arterial stiffness is a measure of how much an artery's wall resists expansion with each pulse of blood; it increases with age as elastin is lost and collagen accumulates, and manifests clinically as a rising systolic blood pressure alongside a falling or stable diastolic blood pressure after about age 60.

Warum es wichtig ist

Arterial stiffness is a direct, measurable consequence of vascular aging that contributes independently to cardiovascular risk.

Definition

Arteriogenesis is the structural remodeling of pre-existing small arterio-arteriolar anastomoses into mature, muscular conducting arteries, driven primarily by increased fluid shear stress rather than tissue hypoxia. Unlike angiogenesis, which produces only tiny capillaries, arteriogenic vessels can handle meaningful bulk arterial flow.

Warum es wichtig ist

It is the mechanism behind the heart's 'backup pipes' and explains both why fit athletes tolerate coronary blockages silently and why that protection has a hard ceiling.

Definition

Eine Arterie ist ein Blutgefäß, das Blut vom Herzen weg in den Rest des Körpers transportiert.

Warum es wichtig ist

Artery walls have layers. Plaque does not build up inside the open channel like gunk in a pipe — it builds up inside the wall itself. That difference explains a lot about why heart disease is so easy to miss.

Definition

A finding on a cardiac test that mimics a sign of disease but is actually caused by technical interference, movement, or normal variation rather than a true abnormality; physicians must distinguish artifacts from genuine pathological signals to avoid misdiagnosis.

Warum es wichtig ist

Dr. Megdal's doctor initially dismissed his ST depression as an artifact—a decision that delayed diagnosis and illustrates a key challenge in interpreting exercise EKGs in athletes.

Definition

ASCVD is the clinical shorthand for disease caused by plaque buildup in the arteries — it covers coronary artery disease, most strokes, and peripheral artery disease under one label.

Warum es wichtig ist

It's the term driving guideline recommendations and risk calculators, because it groups the different places plaque can cause trouble into the single risk that lifestyle and medication decisions are actually aimed at reducing.

Definition

Aspirin macht Blutplättchen weniger klebrig, sodass sich seltener Gerinnsel bilden.

Warum es wichtig ist

If you have already had a heart attack or stroke, daily aspirin usually helps. If you have not, the picture changed: newer studies found the bleeding risk roughly cancels out the benefit for most healthy adults. This is one of the clearest examples of medical advice reversing based on better evidence.

Definition

ASPREE was a large randomized trial testing daily low-dose aspirin versus placebo in adults aged 70 and older (65 and older for U.S. minorities) who were free of cardiovascular disease; it found no significant reduction in cardiovascular events and a higher rate of major bleeding and all-cause mortality in the aspirin group, forming a key basis for recommending against aspirin initiation in older…

Warum es wichtig ist

ASPREE is one of the three pivotal modern trials that shifted guidelines away from routine aspirin use in healthy older people.

Definition

ASTEROID war eine Studie, bei der Patienten die höchste Dosis Rosuvastatin erhielten und ihre Koronarplaque vor und nach der Behandlung mittels intravaskulärem Ultraschall fotografiert wurde.

Warum es wichtig ist

It showed measurable plaque shrinkage — one of the first clear demonstrations that very low LDL can reverse disease, not merely halt it.

Definition

Eine bahnbrechende serielle IVUS-Studie aus dem Jahr 2006, in der Rosuvastatin 40 mg täglich über 24 Monate statistisch signifikante Reduktionen sowohl des prozentualen Atheromvolumens als auch des Gesamtatheromvolumens bewirkte, was den ersten großangelegten Beweis dafür lieferte, dass eine intensive Statintherapie Koronarplaque zurückbilden kann.

Warum es wichtig ist

ASTEROID established aggressive LDL lowering as a proven strategy for shrinking plaques and set the benchmark for subsequent regression trials.

Definition

Astrozyten sind eine Art von Stützzellen (Gliazellen) im Gehirn, die als die primären Cholesterin produzierenden Zellen des zentralen Nervensystems fungieren und Neuronen mit Cholesterin für die Aufrechterhaltung der Membranen und die Myelinunterstützung versorgen. Da Lipoproteine im Blut die Blut-Hirn-Schranke nicht überwinden können, ist das Gehirn fast vollständig auf die von Astrozyten abgeleitete Cholesterinsynthese angewiesen.

Warum es wichtig ist

Disruption of astrocyte cholesterol production is implicated in neurodegenerative conditions, and understanding this isolated synthesis helps explain why systemic LDL levels do not directly reflect brain cholesterol status.

Definition

Atherogenese ist der schrittweise Prozess der Plaquebildung.

Warum es wichtig ist

It starts when an ApoB particle slips into the artery wall and gets trapped. The body treats it as an invader and sends in immune cells. Those cells eat the trapped cholesterol, get stuck themselves, and die there. Repeat this for twenty years and you have a plaque.

Definition

Atherogenic dyslipidemia is a lipid pattern characterized by elevated triglycerides, low HDL cholesterol, and an increased proportion of small, dense LDL particles; it is commonly seen with insulin resistance, visceral obesity, and sedentary behavior, and is associated with accelerated atherosclerosis.

Warum es wichtig ist

Standard cholesterol tests can miss this pattern, making it an important concept for understanding hidden cardiovascular risk.

Definition

A logarithmically derived ratio of triglycerides to HDL cholesterol used as a marker of atherogenic lipoprotein particle size and cardiovascular risk; the article notes that an elevated AIP correlates with coronary calcium burden and major adverse cardiovascular events independent of traditional risk factors.

Warum es wichtig ist

AIP offers an additional layer of risk information beyond the CAC score itself, particularly for patients with borderline results.

Definition

The atherogenic lipoprotein hypothesis is the scientific proposition that apolipoprotein B-containing lipoproteins are the primary causal drivers of atherosclerotic cardiovascular disease, meaning the number of these particles circulating in the blood directly determines the rate of plaque formation in arterial walls.

Warum es wichtig ist

Understanding this hypothesis explains why researchers have shifted focus from total cholesterol to particle counts as the key measure of heart disease risk.

Definition

Atherogene Partikel sind die ApoB-haltigen Lipoproteine – einschließlich LDL, IDL, VLDL und Lipoprotein(a) –, die in die Arterienwand eindringen und dort zurückgehalten werden können, um das Plaque-Wachstum einzuleiten und aufrechtzuerhalten; der Artikel verwendet den Begriff, um zu beschreiben, was wesentlich und nachhaltig gesenkt werden muss, um eine Plaque-Rückbildung zu erreichen.

Warum es wichtig ist

The article's main practical message is to lower these particles, so readers need a precise understanding of what the term covers beyond just 'LDL'.

Definition

Die Gesamtzahl der im Blutkreislauf zirkulierenden ApoB-haltigen Lipoproteinpartikel – einschließlich LDL, VLDL-Remnants und Lp(a) –, im Gegensatz zu der von ihnen transportierten Cholesterinmasse; der Konsens der European Atherosclerosis Society besagt, dass die Partikelanzahl, die am besten durch die ApoB-Messung erfasst wird, ein genauerer Prädiktor für das atherosklerotische Risiko ist als die LDL-C-Konzentration allein.

Warum es wichtig ist

Shifting focus from cholesterol mass to particle number is the central scientific reframing of the article, explaining why ApoB measurement is replacing traditional LDL-C testing.

Definition

Atherom ist ein weiteres Wort für die Fettablagerung in einer Arterienwand – im Wesentlichen ein Synonym für Plaque, das häufiger in der wissenschaftlichen Literatur verwendet wird.

Warum es wichtig ist

The root gives us "atherosclerosis." It comes from a Greek word for gruel, describing what the soft core of a plaque actually looks like.

Definition

Atherosklerose ist die Erkrankung, die den meisten Herzinfarkten und vielen Schlaganfällen zugrunde liegt. Cholesterinteilchen bleiben in der Wand einer Arterie stecken, der Körper schickt Immunzellen zur Beseitigung, und über Jahre hinweg verhärtet sich dieses Chaos zu Plaque.

Warum es wichtig ist

The key thing to understand is that it starts young — often in the teens and twenties — and grows silently for decades before anyone notices. By the time it causes a symptom, it has usually been building for most of your life.

Definition

A condition in which plaques composed of lipids, inflammatory cells, and fibrous tissue build up within the walls of the coronary arteries, narrowing them and reducing blood flow to the heart; it is the leading cause of heart attacks worldwide.

Warum es wichtig ist

Megdal's diagnosis and self-reported reversal of this condition is the medical backdrop that makes his athletic achievements particularly striking.

Definition

The measurable reduction in the size or lipid content of coronary artery plaques, documented by angiography or imaging; it requires a sustained biochemical environment of low circulating LDL and low inflammatory signaling so that cholesterol efflux from the arterial wall exceeds influx.

Warum es wichtig ist

It is the central clinical goal of the dietary protocols discussed in the article—moving beyond slowing disease to actually reversing it.

Definition

The athlete calcification paradox is the well-documented finding that lifelong endurance athletes accumulate more coronary artery calcium and total plaque than sedentary people of similar age, yet have substantially lower cardiovascular mortality — meaning more 'rust' does not translate into greater death risk in this population.

Warum es wichtig ist

It is the central finding that forces doctors and athletes to rethink what a high calcium score actually means in a person who exercises intensely.

Definition

Das Sportler-Paradoxon ist die Beobachtung, dass einige lebenslange Ausdauersportler im Vergleich zu weniger aktiven Gleichaltrigen höhere Werte für Koronarkalk und eine größere Gesamtplaquebelastung aufweisen, obwohl sie ansonsten günstige kardiovaskuläre Risikoprofile haben, was darauf hindeutet, dass extremes, chronisches Training unabhängig davon die arterielle Verkalkung fördern kann.

Warum es wichtig ist

It challenges the simple assumption that more exercise always means lower heart disease risk.

Definition

Athlete's heart describes the normal changes that happen to a heart trained hard for years. The walls thicken a bit, the chambers get bigger, and the resting pulse drops.

Warum es wichtig ist

These changes are healthy adaptations, not disease. The complication is that they can look similar to real heart problems on a test, so they need to be read by someone who understands athletes.

Definition

Atorvastatin, vertrieben als Lipitor, ist eines der beiden stärksten Statine und gehört zu den am häufigsten verschriebenen Medikamenten der Welt.

Warum es wichtig ist

At high dose it typically lowers LDL by around half. It is inexpensive, generic, and backed by more outcome evidence than almost any other drug in medicine.

Definition

ATP-citrate lyase is an enzyme that acts two steps upstream of HMG-CoA reductase in the mevalonate pathway, cleaving citrate to supply the raw material for cholesterol synthesis; bempedoic acid inhibits this enzyme to reduce hepatic cholesterol production.

Warum es wichtig ist

Because ACLY is the target of bempedoic acid, understanding it explains how this newer drug lowers LDL by a mechanism distinct from statins.

Definition

Vorhofflimmern, oft als AFib abgekürzt, ist ein schneller und unregelmäßiger Herzschlag, der in den Vorkammern des Herzens entsteht.

Warum es wichtig ist

Because those chambers quiver instead of squeezing properly, blood can pool and form a clot, which may travel to the brain and cause a stroke. Interestingly, endurance athletes get AFib more often than couch potatoes — one of the few ways heavy exercise raises a risk instead of lowering it.

Definition

Mikroskopische Narbenbildung des Vorhofmuskels, die häufig durch chronische mechanische Dehnung oder Entzündungen entsteht; Fibrose stört die normale elektrische Leitung und ist ein bekannter Prädiktor für ein Rezidiv von Vorhofflimmern nach einer Ablation.

Warum es wichtig ist

Fibrosis is one of the main reasons why ablation is less durable in long-term endurance athletes.

Definition

The brief interval after each electrical activation during which atrial muscle cells cannot respond to a new stimulus; when this period is shortened — as occurs during sympathetic surges or with vagal tone — the atria become more vulnerable to rapid, disorganized firing and AF onset.

Warum es wichtig ist

A shorter refractory period is one of the key electrical mechanisms linking intense exercise to AF in trained athletes.

Definition

Structural and electrical changes in the atria — including enlargement, wall thickening, fibrosis, and altered ion-channel expression — that develop in response to chronic pressure or volume overload; in endurance athletes, sustained high cardiac output drives this process and increases AF susceptibility.

Warum es wichtig ist

Atrial remodeling is the underlying mechanism linking years of hard endurance training to elevated AF risk.

Definition

A form of atrial flutter whose reentrant circuit does not follow the classic right-atrial pathway but instead arises from fibrotic or scarred tissue elsewhere in the atria; in athletes post-ablation, it often signals disease progression beyond the originally isolated pulmonary vein triggers.

Warum es wichtig ist

Its emergence after ablation is a warning sign that the underlying arrhythmogenic substrate is advancing, not resolved.

Definition

A statistical measure of a diagnostic test's ability to discriminate between patients who will and will not experience an event, ranging from 0.5 (no better than chance) to 1.0 (perfect discrimination); in the CONFIRM2 registry, AI-QCT raised the AUC for predicting major cardiac events from 0.62 to 0.75.

Warum es wichtig ist

The AUC figure is how the article quantifies the improvement in predictive accuracy that AI-QCT provides over standard testing.

Definition

Disorders in which the immune system mistakenly attacks the body's own tissues; Cordain argues that grains—which are evolutionarily recent foods—are associated with certain autoimmune conditions, citing gluten-related and lectin-related mechanisms as possible triggers.

Warum es wichtig ist

This claim is a key reason the Paleo framework discourages grains and is worth understanding when evaluating grain-free diets.

Definition

An automated external defibrillator, or AED, is a portable device that can shock a stopped heart back into rhythm. It talks you through what to do, and it will not deliver a shock unless one is needed.

Warum es wichtig ist

When someone collapses from cardiac arrest, survival drops with every passing minute. A bystander with an AED nearby saves far more lives than waiting for an ambulance.

Definition

Autophagy is a cellular housekeeping process by which cells break down and recycle damaged proteins and organelles; in arterial macrophages, it helps clear lipid debris and prevents the accumulation of plaque. The article's 2024 Nature Metabolism finding suggests that high single-meal protein doses may suppress autophagy in these immune cells, potentially worsening atherosclerosis in animal model…

Warum es wichtig ist

Autophagy in artery-wall immune cells is the proposed mechanism linking large protein meals to cardiovascular risk, making it central to the article's '25-gram paradox.'

Definition

Autopsy-negative sudden unexplained death is a classification applied when a complete post-mortem examination, including cardiac-specific pathological review, identifies no structural cause for a fatal cardiac event; it represents the single largest adjudicated category in contemporary NCAA athlete SCD data at approximately 20% of cases.

Warum es wichtig ist

Knowing that one in five young cardiac deaths leaves no structural trace explains why screening strategies focused solely on anatomy cannot prevent all events.

Definition

Autoxidation is the spontaneous reaction of fats with atmospheric oxygen, initiated and propagated without an external ignition source; the rate increases with the number of double bonds in a fatty acid, making highly polyunsaturated seed oils more prone to going rancid during storage or repeated heating than saturated or monounsaturated fats.

Warum es wichtig ist

It is the chemical basis for advice to store oils in cool, dark conditions and avoid reusing frying oil.

Definition

The mean internal diameter measured across an entire standardized arterial segment between reference markers, as opposed to the single narrowest point; the Megdal study uses ALD change across red tick–marked segments to document diffuse, wall-wide regression in the LAD and Circumflex rather than improvement at one focal spot only.

Warum es wichtig ist

ALD reveals whether the whole artery is healthier, not just whether one isolated hot-spot improved.

Definition

Ein Kathetereingriff, bei dem ein kleiner Ballon in einer verengten Koronararterie aufgeblasen wird, um die Plaque zu komprimieren und das Gefäß zu erweitern; wurde vor der Entwicklung von Stents häufig eingesetzt, ist jedoch durch eine hohe Rate an erneuter Gefäßverengung (Restenose) nach dem Eingriff begrenzt.

Warum es wichtig ist

Balloon angioplasty was the predecessor to stenting and understanding its limitations explains why stents became the dominant approach.

Definition

The Baltimore Longitudinal Study of Aging is a long-running prospective cohort study that tracked healthy men over decades and documented that total testosterone declines roughly 1–2% per year after the third decade, while free and bioavailable testosterone fall more steeply at about 2–3% per year as SHBG simultaneously rises.

Warum es wichtig ist

It provides foundational data on how male hormone levels change with age, supporting the clinical importance of measuring bioavailable rather than total testosterone.

Definition

An uncoated metal mesh tube implanted inside a coronary artery to hold it open; unlike drug-eluting stents, it carries no medication and has a higher tendency to become re-blocked by overgrowth of arterial tissue (neointimal hyperplasia).

Warum es wichtig ist

Understanding the difference between stent types helps patients ask informed questions about which device is being recommended and why.

Definition

The Bassler hypothesis was a 1970s claim by physician Thomas Bassler that completing a standard marathon conferred near-absolute protection against fatal coronary atherosclerosis; autopsy studies in the late 1970s and 1980s documenting coronary artery disease in runners who died during training quickly disproved it.

Warum es wichtig ist

Understanding this discredited idea explains why doctors once assumed fit athletes were immune to heart disease — and why its collapse reshaped how we screen athletes today.

Definition

A protein that supports the survival, growth, and plasticity of neurons; estradiol promotes BDNF-associated signaling pathways, and its decline during menopause may reduce synaptic maintenance and contribute to memory complaints.

Warum es wichtig ist

BDNF is a key molecular bridge between estrogen loss and cognitive changes, making it relevant to understanding menopausal brain health.

Definition

Belly fat that sits deep in the abdomen, wrapped around the organs, is called visceral fat. It is different from the softer fat you can pinch under the skin.

Warum es wichtig ist

Visceral fat is active. It sends out chemical signals that raise blood sugar, blood pressure, and triglycerides. This is why waist size can predict heart trouble better than weight on the scale.

Definition

Bempedoinsäure ist eine cholesterinsenkende Tablette, die in der Leber an einem Punkt kurz vor dem Angriffspunkt von Statinen wirkt.

Warum es wichtig ist

Its main advantage is that it stays out of muscle tissue, so it rarely causes the muscle aches some people get from statins. That makes it a useful option for people who truly cannot tolerate a statin.

Definition

Benefit–risk balance refers to the quantitative comparison of the absolute reduction in harmful events a treatment prevents against the absolute increase in harmful events it causes; for aspirin, this balance is highly favorable in secondary prevention (where event rates are high) but close to neutral or unfavorable in primary prevention (where event rates are low).

Warum es wichtig ist

This concept is the central framework of the entire aspirin debate—the same drug can be lifesaving for one person and harmful for another depending on their underlying risk.

Definition

A beta blocker is a medicine that slows the heart and makes it beat less forcefully, which lowers blood pressure and reduces how much oxygen the heart needs.

Warum es wichtig ist

Common examples include metoprolol and carvedilol. They are widely used after heart attacks and in heart failure, where a calmer, slower heart is easier on damaged muscle.

Definition

Impaired capacity of the insulin-secreting beta cells of the pancreatic islets to produce sufficient insulin in response to rising blood glucose; in type 2 diabetes, prolonged metabolic stress can cause irreversible beta-cell loss that limits the degree of disease reversal possible.

Warum es wichtig ist

The article uses beta-cell dysfunction as a parallel to myocardial scarring to illustrate the broader principle that suppressing a disease process does not always undo the organ damage it has already caused.

Definition

An alternative homocysteine remethylation route, operating mainly in the liver and kidney, that uses betaine rather than 5-methyltetrahydrofolate as the methyl donor; it supplements but does not replace the folate-dependent pathway.

Warum es wichtig ist

It explains why homocysteine lowering with B vitamins is sometimes incomplete and why organ-specific factors like liver and kidney health affect the response.

Definition

Enlargement of both the left and right atria, a structural change driven in endurance athletes by years of high cardiac output and sustained volume loading; it creates a stretched, electrically unstable tissue environment that predisposes to atrial fibrillation.

Warum es wichtig ist

Understanding why the atria enlarge helps explain why reducing training volume — not just treating symptoms — is essential for long-term rhythm control.

Definition

Eine Hallenradrennbahn in Aguascalientes, Mexiko, auf etwa 1.887 Metern über dem Meeresspiegel, bekannt für ihre steil überhöhten Kurven und die Höhenbedingungen, die aerodynamische Geschwindigkeit für Rekordversuche begünstigen.

Warum es wichtig ist

The venue's altitude and banking angle are central to understanding the conditions—and trade-offs—under which Megdal set his world hour record.

Definition

A bicuspid aortic valve has two flaps instead of the usual three. It is present from birth in roughly one person in a hundred.

Warum es wichtig ist

It is the most common heart abnormality people are born with. It tends to narrow earlier in life and often comes with a wider aorta, so both need periodic monitoring.

Definition

Biglycan is a small leucine-rich proteoglycan present in the arterial subendothelial matrix that, along with versican and decorin, binds apoB-containing lipoprotein particles through ionic interactions, contributing to their retention in the intima as an initiating step in atherosclerosis.

Warum es wichtig ist

Understanding the specific molecules that trap particles helps explain why reducing particle number is more important than cholesterol content per particle.

Definition

Gallensäuren werden von Ihrer Leber aus Cholesterin gebildet und in den Darm abgegeben, um bei der Fettverdauung zu helfen.

Warum es wichtig ist

This is the body's main route for disposing of cholesterol. Soluble fiber works by binding bile acids so they leave the body instead of being reabsorbed, forcing the liver to pull more cholesterol from the blood.

Definition

A next-generation coronary scaffold made from materials that are gradually broken down and absorbed by the body over time, leaving no permanent metallic structure inside the artery.

Warum es wichtig ist

Because no metal remains, bioabsorbable stents avoid the lifelong risk of in-stent thrombosis associated with permanent metal devices.

Definition

Bioavailable testosterone is the sum of the free (unbound) and albumin-bound fractions of circulating testosterone—the portion actually accessible to tissues—as opposed to the SHBG-bound fraction, which is biologically inert under normal conditions.

Warum es wichtig ist

This is the clinically meaningful number that predicts symptoms; total testosterone alone can be misleading.

Definition

A popular term for self-experimentation with diet, supplements, technology, or lifestyle practices aimed at optimizing physical performance, health, or longevity; it lacks a standardized scientific definition and often promotes unvalidated interventions.

Warum es wichtig ist

Knowing the term helps readers critically evaluate trendy health claims that may outpace the supporting evidence.

Definition

A medication derived from living cells or biological sources rather than chemical synthesis; unlike small-molecule drugs such as statins, biologics are typically large proteins administered by injection and are designed to target specific molecules in the body.

Warum es wichtig ist

Understanding that Repatha is a biologic helps explain why it works through a completely different mechanism than statins and has a distinct side-effect profile.

Definition

The tendency of established structural damage—such as calcified plaques or myocardial scar tissue—to persist even after the active disease process driving that damage has been halted, because the biochemical and cellular remodeling involved is largely irreversible.

Warum es wichtig ist

This concept explains why early intervention produces better outcomes than late intervention, a recurring theme in the article's discussion of plaque types and heart-attack scarring.

Definition

Biological latency in atherosclerosis is the interval between the start of arterial injury from ApoB-containing particles and the point at which a lesion grows large enough for clinical imaging to detect it; autopsy studies of young soldiers and the Bogalusa Heart Study confirm that microscopic disease is common long before any scan turns positive.

Warum es wichtig ist

Latency explains why a clean heart scan in a young person with very high cholesterol can be misleading rather than reassuring.

Definition

Ein Biomarker ist etwas im Körper Messbarem, das Aufschluss über Gesundheit oder Krankheit gibt – ein Laborwert, ein Scanergebnis, ein Blutdruckwert.

Warum es wichtig ist

The catch is that changing a biomarker does not automatically mean you have changed your fate. A number can improve while the underlying disease keeps going. Good biomarkers are ones that have been proven to track real outcomes.

Definition

A carbon atom flanked on both sides by carbon-carbon double bonds in a fatty acid chain; this configuration is particularly vulnerable to free-radical attack and is the structural reason polyunsaturated fats oxidize faster than saturated or monounsaturated fats.

Warum es wichtig ist

This is the precise chemical feature that makes seed oils less stable at high heat, grounding the cooking-stability advice in molecular reality.

Definition

The Bloch pathway is one of two main routes by which lanosterol is converted to cholesterol, proceeding through the intermediate desmosterol before a final reduction by the enzyme DHCR24. It predominates in the testes, adrenal glands, and developing neurons, where the desmosterol intermediate itself serves a biological function.

Warum es wichtig ist

Defects in specific enzymes of this pathway cause inherited sterol disorders that can present with cardiovascular and neurological complications.

Definition

Ein Blutgerinnsel ist eine Klumpenbildung aus Blutzellen und Protein, die entsteht, um Blutungen zu stoppen.

Warum es wichtig ist

Clots are lifesaving when you cut yourself. They are dangerous when they form inside an artery. Most heart attacks happen when a plaque cracks open and a clot forms on top of it, suddenly shutting off blood flow.

Definition

Blutdruck ist die Kraft, mit der das Blut gegen Ihre Arterienwände drückt. Er wird als zwei Zahlen geschrieben, wie 120/80. Die obere Zahl ist der Druck, wenn sich Ihr Herz zusammenzieht, die untere, wenn es sich entspannt.

Warum es wichtig ist

High blood pressure damages artery walls over time and makes it easier for cholesterol particles to get in. It usually causes no symptoms at all, which is why it gets missed for years.

Definition

Blood sugar, or glucose, is the fuel your cells run on. Your body works hard to keep it in a narrow range.

Warum es wichtig ist

When it stays high for years, it damages blood vessels throughout the body — including the ones feeding your heart, kidneys, eyes, and nerves. High blood sugar often shows up alongside high triglycerides and a high particle count.

Definition

Das Gesamtvolumen des zirkulierenden Blutes im Körper; Ausdauertraining vergrößert das Plasma- und Erythrozytenvolumen, wodurch die Sauerstoffversorgung der Muskeln verbessert wird und bei trainierten Sportlern zu einem höheren VO₂max beiträgt.

Warum es wichtig ist

Expanded blood volume is one of the key physiological adaptations distinguishing elite masters athletes from sedentary age-matched individuals.

Definition

The blood–brain barrier is a highly selective cellular interface lining the brain's blood vessels that blocks lipoprotein particles from entering the central nervous system, meaning the brain must synthesize all of its own cholesterol locally.

Warum es wichtig ist

Understanding this barrier explains why lipid-lowering drugs do not deplete brain cholesterol, addressing a common concern about statin safety and cognitive effects.

Definition

A CT imaging phenomenon in which dense calcified deposits appear larger than they truly are due to signal spillover, creating a bright 'halo' that can obscure adjacent non-calcified plaque or distort lumen assessment.

Warum es wichtig ist

This artifact is a key reason standard CAC scans can underestimate the full extent of coronary disease lurking beside calcified spots.

Definition

Five geographic regions—Okinawa, Sardinia, Loma Linda, Nicoya, and Ikaria—identified by researcher Dan Buettner where people live significantly longer than the global average; their diets are consistently 90–95% plant-based, centered on legumes, whole grains, and tubers.

Warum es wichtig ist

Blue Zone populations offer real-world, long-term evidence of which dietary patterns are associated with exceptional longevity.

Definition

Der Body-Mass-Index, kurz BMI, ist eine aus Größe und Gewicht berechnete Zahl, die als grobes Maß für die Körpergröße dient.

Warum es wichtig ist

It is convenient but crude. It cannot tell muscle from fat, and it says nothing about where your fat is stored. A muscular athlete can land in the overweight range while being perfectly healthy, and a thin person can carry dangerous visceral fat.

Definition

The Bogalusa Heart Study examined the arteries of children and young adults who died in accidents in a Louisiana town.

Warum es wichtig ist

The findings were startling: fatty streaks and early plaque in teenagers, and more of it in those with higher cholesterol and blood pressure. It is direct evidence that heart disease begins decades before anyone feels anything.

Definition

Brachial artery flow-mediated dilation (FMD) is a noninvasive ultrasound test that measures how much the brachial artery in the upper arm widens in response to increased blood flow, reflecting nitric oxide-dependent endothelial function; it is a surrogate marker associated with cardiovascular risk in observational studies but is not itself a clinical endpoint like heart attack or stroke.

Warum es wichtig ist

Many dietary fat studies use FMD as an outcome, so knowing its limitations helps readers weigh those results appropriately.

Definition

A major artery branching from the aortic arch that supplies blood to the head, neck, and right arm; in mouse atherosclerosis studies it is a key site for plaque measurement because it develops lesions rapidly and reproducibly.

Warum es wichtig ist

The 624% plaque increase reported at this artery is the study's most striking finding, so knowing what it is matters.

Definition

The Bradford Hill criteria are a set of nine principles—including strength of association, consistency, biological plausibility, and dose-response—used to evaluate whether an observed statistical association between an exposure and a disease is likely to be causal.

Warum es wichtig ist

They are the standard framework scientists use to judge whether LDL truly causes heart disease rather than just correlating with it.

Definition

A small group of riders who accelerate away from the main field (peloton) during a race, hoping to hold their lead to the finish line.

Warum es wichtig ist

The tactical decision to chase the breakaway drove the high-intensity cardiovascular effort that is the athletic centrepiece of the article.

Definition

A randomized controlled trial (Wright et al., 2017) testing a whole food plant-based diet in a community setting for obesity, ischemic heart disease, or diabetes; the WFPB group achieved greater weight loss at six and twelve months than any other trial that did not mandate calorie restriction or exercise.

Warum es wichtig ist

It is one of the few RCTs directly comparing plant-based eating to usual care for weight loss without confounding calorie counting.

Definition

The foundational molecular mechanism described by Nobel laureates Michael Brown and Joseph Goldstein, showing that liver cells regulate their own cholesterol uptake through surface receptors that bind and clear LDL from the bloodstream; this discovery explained familial hypercholesterolemia and became the biological rationale for statins, PCSK9 inhibitors, and all subsequent LDL-lowering therapie…

Warum es wichtig ist

Every cholesterol-lowering drug discussed in the article ultimately works by exploiting or augmenting this pathway, making it the conceptual bedrock of modern lipid medicine.

Definition

A short-chain fatty acid produced when gut bacteria ferment dietary fiber; it strengthens the intestinal barrier, reducing the leakage of bacterial toxins (such as LPS) into the bloodstream that would otherwise drive systemic inflammation.

Warum es wichtig ist

It connects diet and gut health directly to cardiovascular inflammation, showing that what you eat shapes your inflammatory risk.

Definition

A randomized controlled trial of 506 participants that tested high-dose B vitamins (5 mg folic acid, 0.4 mg B-12, 50 mg B-6) versus placebo for approximately three years, with carotid intima-media thickness progression as the primary endpoint; the main result was negative.

Warum es wichtig ist

It is the largest imaging trial directly testing whether B vitamins slow arterial plaque progression in people with mildly elevated homocysteine.

Definition

Bypass surgery takes a healthy blood vessel from somewhere else in your body and uses it to route blood around a badly blocked coronary artery.

Warum es wichtig ist

Like a stent, it restores blood flow to muscle that was starving. Also like a stent, it treats one location. The disease process continues in the rest of your arteries unless the underlying causes are addressed.

Definition

C-reaktives Protein, oder CRP, ist eine Substanz, die Ihre Leber bildet, wenn irgendwo in Ihrem Körper eine Entzündung vorliegt. Eine empfindliche Version des Tests, hs-CRP, wird zur Abschätzung des Herzrisikos verwendet.

Warum es wichtig ist

A high result means inflammation, but not where it is coming from — a cold, arthritis, or gum disease will raise it too. It adds information but does not replace measuring your particle count.

Definition

A measure of a predictive model's ability to correctly rank individuals by risk, equivalent to the Area Under the ROC Curve (AUC); it ranges from 0.5 (no better than chance) to 1.0 (perfect discrimination), with values above 0.80 generally considered clinically useful.

Warum es wichtig ist

It allows direct comparison of how well traditional risk scores versus AI imaging actually identify who will have a heart attack.

Definition

The least functionally impaired category in UCI paracycling, reserved for athletes with a limb deficiency, leg-length discrepancy, or impaired muscle power or range of movement that is mild enough to allow racing on a standard bicycle.

Warum es wichtig ist

Classification determines who an athlete competes against and which records apply, making it essential context for evaluating Megdal's performances.

Definition

CAD-RADS (Coronary Artery Disease Reporting and Data System) is a standardized grading scale used to report findings from coronary CT angiography, ranging from 0 (no plaque or stenosis) to 5 (at least one totally occluded artery); the index patient scored CAD-RADS 0, reflecting no detectable plaque above the imaging threshold.

Warum es wichtig ist

Knowing what CAD-RADS 0 means—and what it cannot rule out—is essential to interpreting the 'perfect' scan result discussed throughout the article.

Definition

Calcific aortic valve stenosis is a condition in which calcium deposits progressively stiffen and narrow the aortic valve, ultimately obstructing blood flow from the heart; Lp(a)-borne oxidized phospholipids are a principal driver of the underlying valvular inflammation and calcification.

Warum es wichtig ist

It explains why some people with seemingly controlled cholesterol still develop severe heart valve disease requiring surgery.

Definition

Verkalkung tritt auf, wenn sich Kalzium in einer Plaque ablagert, wodurch diese teilweise hart und knöchern wird.

Warum es wichtig ist

It sounds bad, and a high total amount does signal a lot of disease. But the hardening itself is partly the body's repair job — a hard, stable plaque is less likely to crack open than a soft, greasy one. This is why statins and heavy exercise can both make plaque look more calcified while making it safer.

Definition

Verkalkte Plaque ist der gehärtete, mit Calcium gefüllte Teil einer Plaque. Sie zeigt sich hell auf einem CT-Scan, was genau das ist, was ein Calcium-Scan misst.

Warum es wichtig ist

Athletes often have more calcified plaque than non-athletes, but it tends to be the dense, stable kind. The amount and the type both matter, not just the total number.

Definition

A CT imaging artifact in which a dense calcified deposit spreads or 'blooms' beyond its true boundaries due to detector limitations, obscuring adjacent soft tissue and making it impossible to assess non-calcified plaque sitting next to the calcium.

Warum es wichtig ist

The article cites calcium blooming as a key reason conventional CT missed dangerous soft plaque, and explains how photon-counting CT solves it.

Definition

Ein Kalzium-Score (Kalkscore der Herzkranzgefäße) ist ein aus einem CT-Scan abgeleiteter Wert, der die Gesamtmenge an verkalktem Plaque in den Koronararterien quantifiziert; ein Wert von null weist auf kein nachweisbares verkalktes Plaque hin, während höhere Werte eine größere Plaque-Last und ein erhöhtes kardiovaskuläres Risiko widerspiegeln.

Warum es wichtig ist

It is the most direct, widely available way to see whether plaque has actually formed in your arteries, going beyond what cholesterol tests can reveal.

Definition

A sustained reduction in calorie intake without malnutrition that consistently downregulates growth signaling, enhances autophagy, and extends lifespan in a wide range of organisms; it is considered one of the most reproducible pro-longevity interventions in experimental biology.

Warum es wichtig ist

Caloric restriction is the benchmark intervention against which most dietary longevity strategies are compared, and it underpins advice about avoiding chronic overeating earlier in life.

Definition

Canakinumab is a monoclonal antibody that targets interleukin-1β (IL-1β), a key inflammatory signaling protein; it was the active drug in the CANTOS trial, where it reduced cardiovascular events without affecting LDL cholesterol.

Warum es wichtig ist

Its cardiovascular benefit without any cholesterol lowering was landmark evidence that inflammation is a therapeutic target in heart disease in its own right.

Definition

CANTOS (Canakinumab Anti-inflammatory Thrombosis Outcomes Study) was a large randomized trial that tested canakinumab, a drug blocking the inflammatory signal IL-1β, against placebo; at its prespecified 150 mg dose it reduced major cardiovascular events by roughly 15% without lowering LDL cholesterol, providing direct human evidence that inflammation drives heart attacks through a pathway indepen…

Warum es wichtig ist

It proved that targeting inflammation alone — separate from cholesterol — can reduce heart attacks, a finding that reshaped how scientists think about what drives plaque rupture.

Definition

The CANTOS (Canakinumab Anti-inflammatory Thrombosis Outcomes Study) trial was a landmark randomized controlled trial that tested whether canakinumab, an IL-1β inhibitor, could reduce cardiovascular events in high-risk patients with elevated hs-CRP after myocardial infarction; its positive results provided the first direct clinical evidence that inflammation is a causal, therapeutically modifiabl…

Warum es wichtig ist

CANTOS changed how cardiologists think about residual risk by showing inflammation is not just a bystander—it is a treatable target.

Definition

Capillary density refers to the number of tiny blood vessels per unit of muscle tissue; regular endurance exercise increases capillary density, improving oxygen and nutrient delivery to working muscles, an adaptation that drugs cannot produce.

Warum es wichtig ist

Higher capillary density is part of the structural fitness that keeps muscles and organs well-supplied as we age.

Definition

Capillary rarefaction is the age-related loss of capillary density within skeletal muscle, which increases the distance oxygen must travel from blood to muscle fibers and reduces the efficiency of oxygen extraction during exercise.

Warum es wichtig ist

It is one of the peripheral mechanisms that erodes aerobic capacity in older athletes even when the heart itself is well-preserved.

Definition

An 8-carbon saturated fatty acid found in small amounts in coconut oil (~7–9%) and concentrated in purified MCT oils; it is rapidly absorbed, transported directly via the portal vein, and oxidized in the liver, accounting for most of the thermogenic and ketogenic effects attributed to MCT preparations in research studies.

Warum es wichtig ist

Most metabolism studies praising MCTs used oils rich in C8:0—not coconut oil—making this distinction crucial for evaluating coconut oil's weight-loss claims.

Definition

Kohlenhydrate sind die Zucker und Stärken in Lebensmitteln – Brot, Reis, Nudeln, Obst, Kartoffeln, Süßigkeiten.

Warum es wichtig ist

Quality matters more than quantity for most people. Whole grains, beans, and vegetables behave very differently in the body than white flour and sugar, even though they are all technically carbohydrates.

Definition

A concentrated, rapidly absorbed source of simple carbohydrates in a semi-liquid form, consumed immediately before or during endurance exercise to maintain blood glucose and delay glycogen depletion.

Warum es wichtig ist

Fueling strategy before a maximal aerobic effort is a practical cardiovascular nutrition topic relevant to heart patients who exercise.

Definition

A carbohydrate-restricted diet is a dietary pattern that substantially limits carbohydrate intake—ranging from strict ketogenic diets to broader low-carb approaches—and is the dietary context in which the Lean Mass Hyper-Responder phenotype and associated LDL elevations are most commonly observed.

Warum es wichtig ist

Knowing this term helps readers understand why the LDL debate has intensified alongside the popularity of keto eating.

Definition

CARDIA has followed young adults from their twenties into later life, tracking fitness, cholesterol, blood pressure, and what eventually happened to them.

Warum es wichtig ist

Because it started so early, it captured the years when plaque is silently forming. It supplies much of the evidence that risk factors in your twenties shape your arteries in your fifties.

Definition

Cardiac arrest is when the heart suddenly stops pumping and the person collapses, stops breathing normally, and loses consciousness within seconds.

Warum es wichtig ist

It is not the same as a heart attack. A heart attack is a plumbing problem — blocked blood flow. Cardiac arrest is an electrical problem — the heart's rhythm falls apart. A heart attack can trigger one, but so can other things. Without CPR and a defibrillator, survival drops fast.

Definition

Cardiac catheterization is a procedure where a thin tube is threaded through a blood vessel, usually from the wrist or groin, up into the heart's arteries.

Warum es wichtig ist

Doctors use it to see blockages, measure pressures, and often to place a stent in the same session. It is how many people first learn how much disease they actually have.

Definition

Klinisch signifikante kardiovaskuläre Ereignisse – einschließlich Myokardinfarkt, instabiler Angina pectoris und Herztod –, die als Endpunkte in kardiovaskulären Studien verwendet werden.

Warum es wichtig ist

Trials are ultimately judged on whether they reduce cardiac events, not just on changes in imaging or blood tests.

Definition

A condition in which blood flow to the heart muscle is insufficient to meet its oxygen demand, typically caused by narrowed coronary arteries; it can produce chest pain (angina), reduced exercise capacity, or, if severe, a heart attack.

Warum es wichtig ist

Ischemia is the underlying mechanism linking blocked arteries to the symptoms and performance losses described throughout the article.

Definition

Eine spezialisierte MRT-Technik des Herzens, die Lage, Muster und Ausmaß einer Myokardverletzung charakterisieren und so helfen kann, einen ischämischen Infarkt von nicht-ischämischen Erkrankungen wie Myokarditis oder Takotsubo-Syndrom zu unterscheiden.

Warum es wichtig ist

CMR is essential in MINOCA workup because it reveals where and how the heart muscle was injured, guiding the search for an underlying mechanism.

Definition

Cardiac MRI uses magnetic fields rather than X-rays to image the heart in fine detail, with no radiation.

Warum es wichtig ist

It is the best test for scarring in the heart muscle, which makes it valuable for distinguishing an athlete's healthy enlarged heart from genuine disease.

Definition

Ein medizinisch überwachtes Programm aus Bewegung, Schulung und Lebensstiländerung nach einem kardialen Ereignis wie einem Herzinfarkt, das darauf ausgelegt ist, die Herz-Kreislauf-Funktion zu verbessern und das Risiko zukünftiger Ereignisse zu verringern.

Warum es wichtig ist

The article presents cardiac rehab as the clearest real-world hint that improving VO₂ max can causally lower mortality.

Definition

Cardiomyopathy is disease of the heart muscle itself, rather than of the arteries feeding it.

Warum es wichtig ist

The muscle may thicken, stretch, or stiffen. Several forms are inherited, and they are among the leading causes of sudden death in young athletes — a different problem entirely from plaque.

Definition

The measurable restoration of heart and lung function following disease or injury, assessed through indices such as ejection fraction, VO2 max, and resting heart rate; it forms the physiological basis for structured cardiac rehabilitation programs.

Warum es wichtig ist

Quantifying cardiopulmonary recovery allows clinicians and patients to track whether lifestyle and exercise interventions are producing real biological benefit.

Definition

Die kardiorespiratorische Fitness beschreibt, wie gut Herz, Lunge und Muskeln bei anstrengender körperlicher Betätigung zusammenarbeiten, um Sauerstoff zu verwerten. Sie wird häufig als VO2 max gemessen.

Warum es wichtig ist

It is one of the strongest predictors of how long you will live — stronger than most lab values. But being extremely fit does not make you immune to plaque, which is a hard lesson many endurance athletes have learned.

Definition

Herz-Kreislauf-Erkrankungen sind der Oberbegriff für Probleme mit dem Herzen und den Blutgefäßen, einschließlich Herzinfarkten, Schlaganfällen und verstopften Beinarterien.

Warum es wichtig ist

It is the leading cause of death worldwide. Most of it traces back to the same underlying process: plaque slowly building in artery walls over decades.

Definition

A cardiovascular outcomes trial is a large, long-term randomized controlled trial specifically designed to measure whether a drug reduces major cardiovascular events such as heart attack, stroke, or cardiovascular death, rather than only improving a lab value or surrogate marker; regulators began requiring them for diabetes drugs after 2008.

Warum es wichtig ist

CVOTs are why we know these medicines actually prevent heart attacks, not just lower blood sugar — a distinction critical for evaluating their real-world benefit.

Definition

Carnitine is a nutrient found mostly in red meat. Your body also makes some on its own.

Warum es wichtig ist

It matters here because gut bacteria can convert carnitine into a compound called TMAO, which has been linked to heart disease. How strong that link really is remains debated.

Definition

Die Halsschlagadern verlaufen auf jeder Seite Ihres Halses nach oben und versorgen Ihr Gehirn mit Blut.

Warum es wichtig ist

They are easy to scan with ultrasound, so researchers often use them to study plaque without needing to look at the heart directly. Plaque in a carotid artery can break loose and cause a stroke.

Definition

Carotid intima-media thickness is an ultrasound measurement of the combined thickness of the inner two layers of the carotid artery wall in the neck; a faster rate of thickening indicates accelerating atherosclerosis, and it is used as a surrogate marker for cardiovascular risk in trials such as ELITE.

Warum es wichtig ist

It is a key surrogate endpoint used to test whether hormone therapy slows arterial aging without needing to wait for heart attacks to occur.

Definition

The rate at which the combined thickness of the innermost two layers of the carotid artery wall increases over time, measured by ultrasound and used as a surrogate imaging marker of atherosclerosis progression or regression in clinical trials.

Warum es wichtig ist

Many homocysteine studies used this measure instead of counting heart attacks, making it essential for interpreting whether B vitamins actually slow plaque development.

Definition

The CASCADE FH Registry is a United States-based patient registry that prospectively collects clinical, genetic, and treatment data from individuals with familial hypercholesterolemia; in HoFH research it has provided key evidence comparing outcomes between patients diagnosed and treated in childhood versus adulthood.

Warum es wichtig ist

Registry data from CASCADE FH quantified the survival benefit of early diagnosis and treatment, directly shaping current pediatric screening recommendations.

Definition

A case-control study starts with people who already have a disease, finds similar people who do not, and looks backward for differences.

Warum es wichtig ist

It is efficient for rare conditions. Its weakness is that it relies on recall and records from the past, and people who are ill tend to remember their history differently.

Definition

A case-crossover study compares a person's exposure in the short period just before an acute event — such as a heart attack — with their exposure during earlier 'control' periods in their own life, making each person their own control. The article uses case-crossover data to report that the odds of myocardial infarction roughly double in the hour after acute anger.

Warum es wichtig ist

This design is why the 'anger triggers heart attacks' finding is more credible than it might first appear — but it measures acute triggers, not long-term risk.

Definition

The dominant protein in cow's milk, accounting for roughly 80% of its total protein content; rodent studies have shown that casein can promote tumour growth at high intake levels and suppress it at lower levels, findings that have been influential but also contested when extrapolated to other animal proteins.

Warum es wichtig ist

Understanding casein's specific effects helps evaluate whether cancer-risk claims about animal protein apply broadly or only to dairy-derived protein.

Definition

Catecholaminergic polymorphic ventricular tachycardia is an inherited channelopathy in which abnormal calcium handling in heart muscle cells causes life-threatening ventricular arrhythmias triggered specifically by the catecholamine surge of exercise or emotional stress, with a structurally normal heart at autopsy.

Warum es wichtig ist

CPVT illustrates how exercise can be directly arrhythmogenic through biochemical rather than mechanical mechanisms, and it is easily missed by standard structural screening.

Definition

A USA Cycling licence category indicating an intermediate-level amateur road racer, below Category 1–2 elite amateurs and professionals; used to benchmark the competitive field Megdal trains against in Memphis.

Warum es wichtig ist

Knowing the category helps readers gauge how demanding Megdal's training environment is relative to his age-group competition.

Definition

Ein Verfahren, bei dem ein Kardiologe einen dünnen, flexiblen Schlauch (Katheter) in das Herz einführt und Energie – typischerweise Hochfrequenzstrom oder Kryotherapie – nutzt, um kleine Gewebebezirke zu zerstören, die für die Auslösung abnormaler elektrischer Signale verantwortlich sind; die wichtigste interventionelle Behandlung bei Vorhofflimmern.

Warum es wichtig ist

The article centers on what athletes can expect from ablation, so knowing how the procedure works matters.

Definition

CAUGHT-CAD is a 2025 randomized trial that studied patients with a family history of premature coronary artery disease and found that Coronary CT Angiography — rather than standard calcium scoring alone — was necessary to detect non-calcified plaque and direct timely clinical intervention.

Warum es wichtig ist

The trial is cited as direct evidence that standard calcium scanning is insufficient for people with strong inherited cardiac risk.

Definition

Kausalität bedeutet, dass eine Sache tatsächlich bewirkt, dass eine andere geschieht. Sie unterscheidet sich von Korrelation, die lediglich besagt, dass zwei Dinge dazu neigen, gemeinsam aufzutreten.

Warum es wichtig ist

This distinction runs through almost every health headline you read. Wine drinkers were healthier — but the wine was not the reason. Sorting real causes from tag-alongs is most of the work in medical research.

Definition

Caveolar transcytosis is a process by which LDL and other ApoB-containing lipoprotein particles are transported across the endothelial cell layer into the arterial wall via small membrane-bound vesicles called caveolae; receptors including LDLR, SR-B1, and ALK1 participate in this pathway, and higher blood ApoB concentrations increase the rate of particle entry in a concentration-dependent manner.

Warum es wichtig ist

This mechanism explains at a molecular level why very high ApoB concentrations overwhelm the artery's defenses and drive plaque formation regardless of metabolic fitness.

Definition

Coronary CT angiography is a non-invasive imaging test that uses X-ray computed tomography to produce detailed pictures of the coronary arteries, allowing doctors to detect and characterize both calcified and non-calcified plaque without inserting a catheter.

Warum es wichtig ist

It is the key imaging tool used to detect the 'silent' plaque buildup described in athletes throughout the article.

Definition

Zelluläre Seneszenz ist ein Zustand, in dem geschädigte Zellen dauerhaft aufhören sich zu teilen, aber metabolisch aktiv bleiben und entzündliche Signale abgeben, die lokale Gewebeschäden begünstigen können; in alternden Arterien häufen sich seneszente Zellen an Plaque-Stellen an und tragen zu einer chronischen, geringgradigen Gefäßentzündung bei.

Warum es wichtig ist

Senescent cells are one of the key mechanisms by which aging adds cardiovascular risk beyond simple cholesterol exposure.

Definition

The CENIT (Coronary Disease and the Effect of High-Intensity Interval Training) trial was a randomized study of 60 patients with stable coronary artery disease that used intravascular ultrasound to measure whether six months of supervised HIIT at 85–95% of peak heart rate changed plaque volume compared with standard care. It found HIIT reduced percent atheroma volume by 1.2% and total normalized…

Warum es wichtig ist

It is one of the few trials showing exercise can shrink measurable plaque in people already on heart medication.

Definition

A model of fatigue proposing that the brain anticipates physiological limits and reduces muscle recruitment before the body actually reaches failure, acting as a protective regulatory system rather than allowing true muscular exhaustion.

Warum es wichtig ist

It reframes fatigue as a negotiable brain signal rather than a fixed physical wall, with implications for how athletes and cardiac rehab patients push through perceived limits.

Definition

The outward pseudo-force experienced by a rider as the banked track redirects the bicycle through a curve; on steeply banked velodromes the effective gravitational load on the rider can approach twice normal body weight, imposing additional cardiovascular and musculoskeletal stress.

Warum es wichtig ist

Repeated high G-force loading in each lap raises physical strain during sustained maximal cardiac output, relevant to any athlete managing heart disease.

Definition

Cerebral amyloid angiopathy is a condition in which amyloid-beta protein deposits accumulate in the walls of small blood vessels in the brain, weakening them and predisposing to microbleeds and impaired blood flow.

Warum es wichtig ist

CAA illustrates how vascular and amyloid pathology directly overlap in the brain, complicating the separation of 'pure' Alzheimer's from vascular dementia.

Definition

Cerebral small vessel disease refers to a spectrum of pathological changes affecting the small arteries, arterioles, capillaries, and venules of the brain, distinct from large-artery atherosclerosis in its drivers and manifestations. It produces white-matter lesions, lacunar infarcts, and contributes to cognitive decline and vascular dementia.

Warum es wichtig ist

CSVD illustrates that arterial disease is not confined to the heart—the same risk factors silently damage the brain's tiny vessels, linking cardiovascular and cognitive health.

Definition

Erkrankung der Blutgefäße, die das Gehirn versorgen, einschließlich Schlaganfall; in einer Überblicksarbeit von Meta-Analysen neben Herz-Kreislauf-Erkrankungen als ein Ergebnis genannt, das durch vegetarische und vegane Ernährung verringert wird.

Warum es wichtig ist

Shows that the cardiovascular benefits of plant-based diets extend beyond the heart to include brain circulation.

Definition

Eine klinische Studie zur Bewertung des Einflusses der AI-QCT-Analyse von Koronarplaques auf die Behandlungsentscheidungen von Ärzten; sie ergab, dass die durch KI gewonnenen Ergebnisse bei 57,1% der Patienten zu einer Änderung der Behandlung führten, wodurch der Einsatz von Statinen um 28,1% und die Verschreibung von Aspirin um 23% zunahmen und unnötige Folgeuntersuchungen um 37% reduziert wurden.

Warum es wichtig ist

It demonstrates that AI imaging translates into concrete changes in patient care, not merely better pictures.

Definition

CETP ist ein Protein, das Cholesterin und Triglyceride zwischen HDL und den schädlichen ApoB-Partikeln austauscht.

Warum es wichtig ist

Blocking it raises HDL dramatically, so drug companies spent billions trying. Most of those drugs failed to prevent heart attacks, and one caused harm. It became the clearest evidence that raising HDL is not itself a treatment.

Definition

A class of drugs designed to block cholesterol ester transfer protein, an enzyme that shuttles cholesterol from HDL to LDL particles; clinical trials such as ILLUMINATE and ACCELERATE showed that pharmacologically raising HDL-C this way did not reduce cardiovascular events, shifting the field's focus toward HDL function rather than concentration.

Warum es wichtig ist

Their failure helped overturn the assumption that simply raising 'good cholesterol' numbers protects the heart.

Definition

A clinical scoring tool used to estimate stroke risk in patients with atrial fibrillation, assigning points for risk factors such as age, sex, hypertension, diabetes, heart failure, prior stroke, and vascular disease; a score of 2 or higher typically triggers a recommendation for oral anticoagulation.

Warum es wichtig ist

Knowing your score determines whether you must stay on blood thinners — a decision that directly affects which sports are safe to play.

Definition

A channelopathy is an inherited disorder of cardiac ion-channel proteins that disrupts the electrical signals controlling heart rhythm without producing any visible structural abnormality detectable at autopsy; examples include long QT syndrome and catecholaminergic polymorphic ventricular tachycardia.

Warum es wichtig ist

Channelopathies can cause sudden death in a structurally normal heart, making them invisible to tests that look only for physical abnormalities.

Definition

Eine große ökologische Studie, die in den 1980er Jahren durchgeführt wurde und Ernährungsmuster, Biomarker und die Krankheitsmortalität in ländlichen chinesischen Bezirken mit überwiegend pflanzlicher Ernährung verglich; sie berichtete über eine drastisch niedrigere Sterblichkeit an koronarer Herzkrankheit und wesentlich niedrigere Serumcholesterinspiegel im ländlichen China im Vergleich zu den Vereinigten Staaten.

Warum es wichtig ist

This project is a foundational reference for the link between plant-dominant diets and lower cardiovascular mortality, though its ecological design limits causal inference.

Definition

A long-running longitudinal study of elderly and oldest-old adults in China, widely used to examine survival, diet, and healthspan in people aged 80 and above, including centenarians.

Warum es wichtig ist

This is the primary source for the article's claim that strict vegetarian patterns may be associated with lower odds of reaching 100 in very old age.

Definition

CHIP is a condition in which a mutation in a bone marrow stem cell gives its descendants a growth advantage, so that a measurable fraction of a person's blood cells share that mutation; it becomes increasingly common with age and is associated with roughly a two-fold increase in coronary heart disease risk, likely because the mutant immune cells behave more aggressively in the artery wall.

Warum es wichtig ist

CHIP is an under-recognized age-related mechanism that raises heart disease risk independently of traditional risk factors like cholesterol.

Definition

Cholesterin ist eine wachsartige Substanz, die Ihr Körper braucht. Es fließt in Zellwände, Hormone, Vitamin D und die Galle ein, die Ihre Nahrung verdaut. Ohne es würden Sie sterben.

Warum es wichtig ist

The problem is not cholesterol existing. The problem is how much of it is riding around in your bloodstream inside particles that can burrow into artery walls.

Definition

When cholesterol accumulates past what a plaque can hold in solution, it crystallizes into sharp needle-like structures.

Warum es wichtig ist

These crystals physically damage immune cells and trip the NLRP3 alarm, producing a burst of inflammation. They can also puncture a fibrous cap from the inside.

Definition

Cholesterol efflux capacity is a laboratory test of how well someone's HDL actually pulls cholesterol out of cells — a measure of function rather than quantity.

Warum es wichtig ist

It predicts risk better than the HDL number does, which supports the view that HDL quality is what matters. It remains a research test, not something you can order routinely.

Definition

See CETP for the full entry.

Definition

Cholesterinsynthese ist die körpereigene Produktion von Cholesterin, hauptsächlich in der Leber. Fast jede Zelle kann das.

Warum es wichtig ist

This is why cutting cholesterol out of your food does less than people expect — when you eat less, your body simply makes more. It is also why statins work: they slow the factory rather than blocking the food.

Definition

A large-scale pooled analysis of randomized trials of LDL-lowering therapies that demonstrated each approximately 1 mmol/L reduction in LDL-C reduces major vascular events by just over one-fifth per year, with no evidence of a safe lower threshold, providing key quantitative support for treating elevated LDL-C.

Warum es wichtig ist

It gives the specific numbers behind why LDL-raising from coconut oil is clinically relevant, not just a statistical abstraction.

Definition

Cholesterol-years is a cumulative-exposure metric that multiplies a person's average LDL-C level (in mg/dL) by the number of years they have carried that level, analogous to pack-years for tobacco. The concept holds that it is the total lifetime burden of apoB-containing lipoproteins, not any single reading, that determines when and how severely atherosclerosis develops.

Warum es wichtig ist

Understanding cumulative exposure explains why modest LDL levels sustained for decades can be more dangerous than high levels for a short period—and why early treatment matters far more than late treatment.

Definition

Cholesterinester sind Speicherformen des Cholesterins, bei denen eine Fettsäure an Cholesterin gebunden ist; sie akkumulieren in großen Mengen in Schaumzellen und den extrazellulären Räumen von Plaques, und ihre Depletion – gemessen als Regression des lipidreichen Pools – ist ein primärer Marker für eine Plaqueverbesserung in Primaten-Regressionsstudien.

Warum es wichtig ist

Understanding what actually clears during reversal (cholesteryl ester pools, not fibrous or calcified tissue) sets realistic expectations for what treatment can achieve.

Definition

Choline is a nutrient found in eggs, red meat, and liver. Your body genuinely needs it, especially for the brain.

Warum es wichtig ist

Like carnitine, it can be converted by gut bacteria into TMAO. This is the biological chain that connects certain foods to a possible heart risk through the gut microbiome.

Definition

Chondroitin sulfate is a negatively charged glycosaminoglycan chain attached to arterial proteoglycans such as biglycan and versican; it binds ionically to the positively charged ApoB-100 protein on LDL particles, anchoring them in the subendothelial space and initiating the atherosclerotic process.

Warum es wichtig ist

It is the molecular 'Velcro' that traps LDL in artery walls—a key reason why the arterial wall is not a passive bystander in heart disease.

Definition

Chronic kidney disease is a lasting reduction in the kidneys' ability to filter waste from the blood.

Warum es wichtig ist

It raises cardiovascular risk independently and steeply — many people with kidney disease die of heart disease before their kidneys fail. It also alters calcium handling in blood vessels.

Definition

A sustained reduction in blood pH caused by an excess of acid-producing foods relative to base-producing foods; high animal-protein diets have been proposed to cause this state and thereby leach calcium from bones, though modern evidence does not support this mechanism when overall mineral intake is adequate.

Warum es wichtig ist

This claim has been used to argue that high-protein diets harm bone health—knowing the evidence helps you weigh that concern.

Definition

A psychological strategy of breaking a large, overwhelming task into smaller, manageable units to reduce perceived difficulty and sustain motivation; used in cardiac rehabilitation and endurance sport to help patients and athletes continue through prolonged discomfort.

Warum es wichtig ist

It provides a practical mental framework for managing pain and effort during extended physical or medical challenges.

Definition

Ein Chylomikron ist ein sehr großes Partikel, das Fett aus einer Mahlzeit aus dem Darm in den Blutkreislauf transportiert.

Warum es wichtig ist

Whole chylomicrons are too big to squeeze into an artery wall, so they are not directly dangerous. But as they shrink and drop off their cargo, the leftovers — called remnants — are small enough to get in and cause trouble.

Definition

Circumferential wall stress is the tensile force acting around the circumference of an artery due to internal blood pressure; it rises with higher pressure and greater arterial diameter, and repeated extreme elevations during intense exercise may contribute to structural changes in the arterial wall.

Warum es wichtig ist

The article identifies exercise-driven surges in this force—reaching up to 250 mmHg—as a potential driver of the mechanical remodeling that may facilitate atherogenesis in endurance athletes.

Definition

One of the two main branches of the left coronary artery, which curves around the back of the heart to supply the lateral and posterior left ventricular wall; the Megdal Serial Angiogram shows the Circumflex improved from mild-to-moderate narrowing (30–45%) in 2014 to improved patency below 20% in 2018, contributing to the evidence of diffuse, systemic regression.

Warum es wichtig ist

Improvement in the Circumflex alongside the LAD shows the healing was not confined to one artery, strengthening the case for a true systemic effect.

Definition

Creatine kinase is an enzyme released from damaged muscle cells into the bloodstream; a markedly elevated blood CK level is used to confirm that muscle injury is genuine and pharmacological rather than purely symptom-based.

Warum es wichtig ist

CK testing is the frontline blood test that helps doctors determine whether a patient's muscle pain is truly caused by a statin or by another source.

Definition

CLEAR Outcomes was a large trial that tested bempedoic acid in people who couldn't tolerate statins, to see whether it lowered heart attack and stroke risk the way statins do.

Warum es wichtig ist

It did — event rates fell in step with the drop in LDL and ApoB, in a population that had few other options. It's the main outcome evidence behind recommending bempedoic acid rather than just a cholesterol-lowering pill with no proof of preventing events.

Definition

Eine klinische Studie ist eine Untersuchung, bei der Forscher einer Gruppe eine Behandlung und einer anderen Gruppe ein Placebo oder eine Standardbehandlung verabreichen und dann die Ergebnisse vergleichen.

Warum es wichtig ist

When people are assigned randomly, it is the most reliable way we have to find out if something truly works. Observational studies can only watch what people already do, which leaves room for other explanations.

Definition

The gene encoding the enzyme CMP-N-acetylneuraminic acid hydroxylase, which converts Neu5Ac to Neu5Gc in most mammals; humans carry an inactivating mutation in this gene and therefore cannot synthesize Neu5Gc.

Warum es wichtig ist

Understanding why humans are uniquely vulnerable to dietary Neu5Gc requires knowing that a single gene mutation set us apart from other mammals.

Definition

A genetically engineered mouse that lacks both the CMAH gene (making it unable to produce Neu5Gc, like humans) and the LDL receptor gene (making it prone to high cholesterol and atherosclerosis); used to study how dietary Neu5Gc and anti-Neu5Gc antibodies affect plaque development.

Warum es wichtig ist

This is the key experimental model providing mechanistic evidence that Neu5Gc may accelerate atherosclerosis, so understanding what it is helps evaluate the strength of that evidence.

Definition

Coconut oil is a cooking fat that got marketed as a superfood despite being very high in saturated fat.

Warum es wichtig ist

Studies consistently show it raises LDL cholesterol, similar to butter. The health-food reputation came from marketing and a few misread studies, not from evidence that it protects your heart.

Definition

A combined measure of a rider's aerodynamic drag, calculated as the product of the drag coefficient and the frontal surface area; a lower CdA means less air resistance and faster speeds for the same power output.

Warum es wichtig ist

In an hour record, aerodynamic efficiency can matter as much as raw power—even small reductions in CdA translate to significant distance gains.

Definition

A defined group of patients followed over time under similar conditions; Esselstyn's cohort, for example, consisted of patients with advanced coronary artery disease who agreed to follow a strict plant-based diet.

Warum es wichtig ist

Knowing what a cohort is helps readers understand why results from a selected group may or may not generalise to the wider population.

Definition

Eine Kohortenstudie begleitet eine große Gruppe von Menschen über einen längeren Zeitraum, wobei aufgezeichnet wird, was sie essen oder tun und wie sich ihre Gesundheit Jahre später entwickelt.

Warum es wichtig ist

These studies are valuable for spotting patterns, but they cannot prove cause. People who choose a habit usually differ in other ways too, and those differences can be the real explanation.

Definition

Colchizin ist ein altes, billiges Antiphlogistikum, das seit Jahrhunderten bei Gicht eingesetzt und nun für Herzerkrankungen umfunktioniert wird.

Warum es wichtig ist

It reduces events in people who keep having them despite well-controlled cholesterol. It is the most practical evidence so far that treating inflammation directly adds something.

Definition

COLCOT (Colchicine Cardiovascular Outcomes Trial) was a randomized trial in which low-dose colchicine, an anti-inflammatory drug, was given to patients shortly after a heart attack; it reduced the risk of a subsequent major cardiovascular event by 23% compared with placebo, establishing that targeting inflammation independently of cholesterol lowers cardiovascular risk.

Warum es wichtig ist

It is one of the trials showing that fighting inflammation — not just lowering cholesterol — can prevent heart attacks.

Definition

Ein biochemischer Prozess, bei dem Kollagenfasern in Arterienwänden stabile chemische Bindungen zwischen benachbarten Molekülen eingehen, wodurch die Gewebeelastizität verringert und zu einer irreversiblen Arterienversteifung beigetragen wird; er wird durch Bewegungsmangel und fortschreitendes Alter beschleunigt.

Warum es wichtig ist

This process explains why the window for reversing arterial stiffness closes after roughly age 65, creating the urgency for midlife intervention.

Definition

Collateral circulation is a network of small backup blood vessels that can grow around a blocked artery, like a detour around a closed road.

Warum es wichtig ist

People who develop good collaterals sometimes survive blockages that would otherwise be devastating. Long-term exercise appears to encourage them, which may be one reason very fit people can have severe disease without symptoms.

Definition

Collateral flow index is an invasive measurement obtained during balloon occlusion of a coronary artery that quantifies the proportion of normal antegrade blood flow supplied by collateral vessels. It is used in research to objectively assess how well the heart's backup circulation compensates for a blockage.

Warum es wichtig ist

It provides a concrete number for how much protection the 'backup pipes' actually offer, and studies using CFI have shown both the benefits and strict limits of exercise-induced collateral growth.

Definition

Compensatory enlargement, described by Glagov, is the outward expansion of an artery's wall as plaque accumulates inside it, allowing the channel where blood flows to remain relatively open despite substantial hidden disease; on modern CT imaging, this positive remodeling is considered a high-risk plaque feature associated with lipid-rich, potentially vulnerable plaque rather than evidence of hea…

Warum es wichtig ist

It explains why a person can carry serious atherosclerosis yet have a nearly normal-looking angiogram — the disease hides in the wall, not the channel.

Definition

The process by which an artery expands its outer diameter to preserve luminal blood flow as plaque accumulates within the vessel wall; luminal narrowing is typically delayed until plaque occupies roughly 40% of the internal elastic lamina area, making early disease invisible to lumen-focused imaging.

Warum es wichtig ist

It explains why standard imaging can report 'normal' arteries even when substantial plaque is already present inside the vessel wall.

Definition

Ein zusammengesetzter Endpunkt fasst mehrere verschiedene Endpunkte zusammen und zählt denjenigen, der als Erstes eintritt.

Warum es wichtig ist

Bundling makes trials smaller and faster. It can also mislead, because a headline reduction may be driven entirely by the least serious component — more procedures avoided rather than fewer deaths.

Definition

Die kompositorische Stabilisierung bezeichnet eine Verschiebung der Plaquebiologie weg von einem lipidreichen, entzündeten, rupturgefährdeten Zustand hin zu einem dichteren, weniger aktiven Zustand, die durch eine ApoB-Senkung oder eine entzündungshemmende Behandlung erreicht wird; sie verringert die Wahrscheinlichkeit, dass eine Plaque ein akutes Korontereignis auslöst, ohne dabei notwendigerweise das bildgebend sichtbare Gesamt-Plaquevolumen zu verringern.

Warum es wichtig ist

It reframes the goal of treatment from 'making plaque disappear' to 'making plaque less dangerous.'

Definition

Compound heterozygous describes a genetic state in which an individual inherits two different pathogenic mutations in the same gene—one from each parent—rather than two copies of the identical mutation; in HoFH, compound heterozygosity for two distinct LDLR mutations still abolishes or severely impairs LDL receptor function and produces the full HoFH phenotype.

Warum es wichtig ist

Most HoFH patients are compound heterozygotes rather than true homozygotes, which affects genetic testing strategies and family screening.

Definition

Die Computertomographie, kurz CT, nimmt Röntgtenbilder aus vielen Winkeln auf und rekonstruiert diese zu Schnittbildern des Körpers.

Warum es wichtig ist

It is the technology behind both the calcium scan and CT angiography — the two tests that let doctors see coronary plaque without threading a catheter into an artery.

Definition

Concentration-time exposure, in the context of atherosclerosis, refers to the cumulative dose of ApoB-containing particles that an artery wall has experienced over time — the product of how high the particle level is and how many years it has been elevated — rather than a single snapshot measurement.

Warum es wichtig ist

It explains why a person's lifetime cholesterol history matters far more than one test result, and why starting lipid lowering early has such a large long-term benefit.

Definition

A confidence interval is the range of values that are statistically compatible with what a study found.

Warum es wichtig ist

It shows how solid a result is. A narrow interval means a precise finding; a wide one that crosses "no effect" means the study could not really tell whether the treatment worked.

Definition

A large international multicenter registry study of patients undergoing coronary CT angiography that documented the prevalence and clinical significance of coronary artery disease — including adverse events — even among patients whose coronary artery calcium score was zero.

Warum es wichtig ist

The CONFIRM data underpin the warning that a zero calcium score can still coexist with dangerous plaque, a finding directly relevant to people with inherited cardiac risk.

Definition

Ein großes, multinationales Register von über 6.000 Patienten, in dem KI-quantifizierte Merkmale koronarer Plaques hinsichtlich ihrer Fähigkeit zur Vorhersage schwerwiegender kardiovaskulärer Ereignisse untersucht wurden; das Register zeigte, dass die durch KI gestützte Plaque-Analyse die Fläche unter der ROC-Kurve für die Ereignisvorhersage im Vergleich zu Standardmethoden von 0,62 auf 0,75 verbesserte.

Warum es wichtig ist

CONFIRM2 is the primary evidence the article cites that AI-QCT measurably improves risk prediction beyond existing tools.

Definition

A confounder is a variable that is associated with both the exposure being studied (such as TMAO) and the outcome (such as heart disease), making it appear as though one causes the other when a third factor is actually responsible. The article lists renal function, insulin resistance, systemic inflammation, and age as major confounders that inflate the apparent cardiovascular risk of high TMAO in…

Warum es wichtig ist

Confounding is the central methodological problem that explains why the TMAO-heart disease link looks stronger in some studies than the genetic evidence supports.

Definition

Eine Störgröße liegt vor, wenn ein versteckter dritter Faktor zwei ansonsten unverbundene Dinge miteinander verknüpft erscheinen lässt.

Warum es wichtig ist

Classic example: people who take vitamins are healthier. But they also exercise more, smoke less, and see doctors more often. The vitamin gets credit for what those other habits did. Untangling confounding is why good studies are so hard to run.

Definition

Conjugated equine estrogens are a mixture of estrogen compounds derived from horse urine and taken as an oral pill; they were the form of estrogen used in the WHI trial, and unlike bioidentical estradiol, they undergo hepatic first-pass metabolism and raise coagulation factors.

Warum es wichtig ist

Distinguishing CEE from modern bioidentical estradiol patches is essential for interpreting the WHI results correctly.

Definition

Eine paradoxe Schrumpfung der äußeren elastischen Membran, die mit einer Plaqueregulation einhergehen kann und dazu führt, dass sich die Gefäßwand eher nach innen zusammenzieht als sich nach außen auszudehnen; dies hat zur Folge, dass die Lumenquerschnittsfläche gleich bleibt oder sogar abnimmt, obwohl das Gesamtplaquevolumen sinkt.

Warum es wichtig ist

It explains why successful plaque-shrinking therapy does not always widen the artery or relieve symptoms, a counterintuitive finding patients and clinicians need to understand.

Definition

The removal of body heat by the movement of air or fluid across the skin; at altitude the lower air density reduces convective heat loss, raising core temperature and impairing muscle efficiency during exercise.

Warum es wichtig ist

Reduced convective cooling at altitude or in hot environments accelerates fatigue and directly limits cardiovascular performance.

Definition

A class of deep-learning architecture designed to detect spatial patterns in image data; in AI-QCT, CNNs are trained on large coronary CT datasets with invasive validation to recognize and classify plaque components automatically.

Warum es wichtig ist

CNNs are the computational engine that allows AI-QCT to outperform human readers in identifying high-risk plaque.

Definition

A long-running prospective observational study based at the Cooper Clinic in Dallas that has followed a large cohort of patients over decades and contributed foundational data on the association between family history and coronary heart disease death in men.

Warum es wichtig ist

Research from this study is part of the evidence base showing that a family history of cardiac death predicts long-term coronary risk independently of other standard risk factors.

Definition

A large Danish cohort study that analyzed lipid and lipoprotein concentrations in over 13,000 cord blood samples with longitudinal follow-up, providing normative reference data for cholesterol trajectories from birth through the first 14–16 months of life.

Warum es wichtig ist

It established that babies reach near-adult LDL-C and ApoB levels far earlier than anyone expected—reframing when cardiovascular risk actually begins.

Definition

A very large Danish study that measured lipids, including Lp(a) and remnant cholesterol, in tens of thousands of people and followed their health for years.

Warum es wichtig ist

Denmark's national health records make follow-up unusually complete. Much of what we know about remnant cholesterol and Lp(a) as independent risks comes from this dataset.

Definition

Small membrane-bound transport carriers (typically 60–80 nm in diameter) that bud from the endoplasmic reticulum to ferry newly synthesized proteins to the Golgi apparatus; their limited size means large molecules such as procollagen require specialized machinery like TANGO1 to exit the ER.

Warum es wichtig ist

Understanding COPII size constraints explains why the MIA3/TANGO1 pathway is indispensable for collagen secretion and plaque stability.

Definition

CoQ10 is a compound your cells use to help generate energy in the mitochondria. Statins reduce production of it slightly, since it shares a manufacturing pathway with cholesterol.

Warum es wichtig ist

It's the basis for a popular but poorly substantiated claim that statins cause fatigue and muscle pain by depleting CoQ10 — a theory sold hard by supplement marketers, though trials haven't shown that supplementing it actually prevents statin symptoms.

Definition

CORDIOPREV verglich eine mediterrane Ernährung mit einer fettarmen Ernährung bei Menschen, die bereits an einer Koronarkrankheit litten, und begleitete sie über sieben Jahre.

Warum es wichtig ist

It is one of the few long, well-run dietary trials in people with established disease, and it reported fewer events on the Mediterranean pattern.

Definition

CORDIOPREV is a randomized controlled trial that compared a Mediterranean diet to a modestly low-fat diet (approximately 28–30% of calories from fat) in patients with established coronary artery disease; it confirmed Mediterranean dietary superiority over that comparator but did not test the ultra-low-fat (

Warum es wichtig ist

It is the main secondary RCT for the Mediterranean diet in patients with existing heart disease, and its limitations in scope are relevant to understanding what the evidence does and does not show.

Definition

Die Koronararterien sind die kleinen Blutgefäße, die sich um die Außenseite Ihres Herzens legen und den Herzmuskel selbst mit Blut versorgen.

Warum es wichtig ist

They are surprisingly small — roughly the width of a coffee stirrer. When one gets blocked, the muscle it feeds starts to die within minutes.

Definition

CABG ist eine Operation am offenen Herzen, bei der ein Chirurg ein an einer anderen Stelle des Körpers entnommenes Blutgefäß – typischerweise eine Beinvene oder eine Brustwandarterie – verwendet, um einen neuen Weg für den Blutfluss um eine verengte Herzkranzarterie herum zu schaffen.

Warum es wichtig ist

Understanding CABG helps patients grasp why surgery is sometimes recommended over stenting, particularly when multiple arteries are severely diseased.

Definition

Koronare Arterienverkalkung ist ein Maß für verkalkte Plaqueablagerungen in den Wänden der Herzkranzgefäße, quantifiziert durch ein CT und ausgedrückt als Agatston-Score; höhere Werte weisen auf eine größere kumulative Plaque-Last hin und sagen zukünftige kardiovaskuläre Ereignisse voraus.

Warum es wichtig ist

Studies discussed in the article use CAC as the primary marker showing that lifelong endurance athletes can have paradoxically high plaque burden.

Definition

A non-contrast, ECG-gated CT scan that detects and quantifies calcified plaque in the coronary arteries; the resulting Agatston score reflects the extent of coronary calcification and serves as a direct, disease-based measure of atherosclerotic burden rather than a statistical estimate of risk.

Warum es wichtig ist

Understanding what the score actually measures—and what it can miss—is essential for interpreting your own results or those of a fit, seemingly healthy patient.

Definition

A coronary artery calcium score, or CAC score, comes from a quick CT scan that measures how much hardened plaque is in your heart's arteries. No dye, no needles, about ten minutes.

Warum es wichtig ist

A score of zero is genuinely reassuring for most middle-aged people. A high score means real disease is present, even if you feel perfectly fine. It is one of the few tests that can show you your disease instead of just estimating your odds.

Definition

Koronare Herzkrankheit ist eine Plaque-Ansammlung in den Arterien, die den Herzmuskel versorgen.

Warum es wichtig ist

It is the most common form of heart disease and the usual cause of heart attacks. It builds silently for decades, which is why the first symptom for many people is also a serious event.

Definition

An abnormal, pathological dilation of a coronary artery segment beyond 1.5 times the diameter of an adjacent normal segment; the article explicitly rules it out as an explanation for the observed vessel widening in the Megdal angiograms, confirming the enlargement reflects true regression rather than disease-related over-expansion.

Warum es wichtig ist

Distinguishing healthy regression from ectasia ensures the 'wider pipe' seen in the 2018 images is good news, not a different problem.

Definition

Narrowing of a coronary artery lumen, typically caused by atherosclerotic plaque, which reduces blood flow to the heart muscle; measured as a percentage of the original vessel diameter.

Warum es wichtig ist

Stenosis is the structural abnormality that lifestyle trials aim to reduce, so knowing the term helps readers interpret claims about 'reversal.'

Definition

A measurable reduction in the size or severity of atherosclerotic plaque within the coronary arteries, confirmed by imaging; the Ornish Lifestyle Heart Trial demonstrated regression after one year on a low-fat plant-based diet, with further improvement at five years.

Warum es wichtig ist

Regression—rather than mere slowing of progression—is the gold standard outcome that distinguishes the most effective cardiovascular interventions.

Definition

A coronary care unit is a specialised hospital ward where heart-attack patients are continuously monitored for dangerous heart rhythms and can be defibrillated immediately if one occurs. Introduced in the early 1960s, it was the single biggest step forward in acute heart-attack survival before modern drugs arrived.

Warum es wichtig ist

The CCU demonstrated that continuous monitoring and rapid defibrillation — not drugs or surgery — drove the first major improvement in surviving a heart attack.

Definition

Coronary CT angiography, or CCTA, is a CT scan done with dye in your veins that produces detailed pictures of your heart's arteries.

Warum es wichtig ist

Unlike a calcium scan, it can see soft plaque as well as hard plaque, and unlike an invasive angiogram it requires no catheter. It shows both how narrow an artery is and what the plaque is made of.

Definition

Coronary flow reserve compares blood flow through the heart's arteries at rest with flow when the heart is working hard.

Warum es wichtig ist

A poor result with clear large arteries points to trouble in the tiny vessels instead — a real and often missed cause of chest pain, especially in women.

Definition

Die koronare Herzkrankheit ist die Verengung oder Verstopfung der Arterien, die den Herzmuskel mit Blut versorgen, verursacht durch die Anlagerung von atherosklerotischer Plaque; sie ist weltweit die häufigste Ursache für Herzinfarkt und Herztod.

Warum es wichtig ist

It is the underlying condition the entire article is about, and knowing its formal name helps readers follow medical sources and statistics.

Definition

Nicht-invasive oder invasive Verfahren wie die quantitative Koronarangiographie oder der Intravaskuläre Ultraschall, die zur Visualisierung der Größe und Beschaffenheit von Plaques in den Koronararterien eingesetzt werden; die Arbeiten von Ornish und Esselstyn sind bemerkenswert, weil sie eine objektive Koronarbildgebung nutzen, anstatt sich ausschließlich auf Symptom- oder Ereignisdaten zu verlassen.

Warum es wichtig ist

Regression of atherosclerosis demonstrated by imaging carries more direct mechanistic weight than event counts alone, which is why the article emphasises it.

Definition

Coronary microvascular dysfunction is impaired function of the tiny arterioles and capillaries supplying the heart muscle, resulting in reduced blood flow and exercise intolerance even when the major coronary arteries appear normal on angiography.

Warum es wichtig ist

CMD can cause symptoms and limit performance in older athletes whose large-artery tests come back clean, making it an easy-to-miss contributor to exercise intolerance.

Definition

Koronthrombose ist die Bildung eines Blutgerinnsels in einer Herzkranzarterie, wodurch der Blutfluss zum Herzmuskel blockiert wird – das zugrundeliegende Ereignis bei den meisten Herzinfarkten. Sie wurde 1912 erstmals als erkennbares klinisches Syndrom bei einem lebenden Patienten beschrieben.

Warum es wichtig ist

Understanding that a clot, not just a diseased artery, triggers the acute event explains why clot-dissolving drugs and antiplatelet therapies became central to heart-attack treatment.

Definition

Eine plötzliche, intensive, vorübergehende Verengung einer epikardialen Koronararterie, die schwerwiegend genug ist, um den Blutfluss zu stoppen und eine Myokardischämie oder einen Myokardinfarkt zu verursachen, die sich typischerweise vor der Durchführung einer Angiographie zurückbildet und ein scheinbar normal aussehendes Gefäß hinterlässt.

Warum es wichtig ist

Vasospasm is one of the key 'invisible' causes of MINOCA—it causes real heart damage yet leaves no lasting obstruction for standard tests to detect.

Definition

The cortisol awakening response (CAR) is the sharp rise in cortisol that normally occurs in the 30–45 minutes after waking, and is used as a measure of how well the HPA axis is functioning. The article notes that in Whitehall II the CAR did not predict cardiovascular mortality, whereas a flatter diurnal cortisol slope did.

Warum es wichtig ist

Understanding what cortisol patterns actually matter — and which ones don't — helps you evaluate claims about stress hormones and heart risk.

Definition

The Clinical Outcomes Utilizing Revascularization and Aggressive Drug Evaluation trial randomized 2,287 patients with stable coronary artery disease to PCI plus optimal medical therapy or medical therapy alone, finding no significant difference in death or heart attack rates over up to 15 years of follow-up.

Warum es wichtig ist

It is the landmark study showing that stents do not help most stable heart disease patients live longer than medication and lifestyle changes alone.

Definition

COVID-19 infection is associated with transient reductions in cardiopulmonary fitness, VO₂ max, and muscular endurance; even after acute illness resolves, residual fatigue and reduced aerobic capacity can persist for weeks and pose risks if high-intensity exercise is resumed prematurely.

Warum es wichtig ist

Returning to strenuous exercise after COVID-19 carries specific cardiovascular risks, including myocarditis, that are important for heart health readers to understand.

Definition

COX-1 is an enzyme found in platelets that produces thromboxane A₂, a chemical that promotes platelet clumping and blood vessel narrowing; aspirin permanently blocks COX-1 by chemically modifying a specific site (Ser-530) in the enzyme, which is the molecular basis of aspirin's antiplatelet effect.

Warum es wichtig ist

Knowing what COX-1 does clarifies exactly how aspirin prevents clots—and why its inhibition carries both benefit and bleeding risk.

Definition

An involuntary, painful muscle contraction that can occur during prolonged maximal exercise, often associated with fatigue and electrolyte shifts; in the article, Megdal begins cramping in the final minutes of his hour-long maximal effort.

Warum es wichtig ist

Muscle cramping near peak exertion is a signal of physiological stress relevant to anyone pushing cardiovascular limits during exercise.

Definition

An enzyme released into the bloodstream when muscle cells are damaged; elevated CK levels are used as a biomarker of skeletal muscle injury, and statin use—especially around intense exercise—can raise CK beyond the elevation caused by training alone.

Warum es wichtig ist

The key lab marker used to distinguish statin-related muscle damage from normal exercise-induced soreness in athletes.

Definition

Eine prospektive Studie an 513 Patienten, die eine KI-gestützte CCTA-Analyse mit invasiver quantitativer Koronarangiographie und fraktioneller Flussreserve verglich; sie zeigte eine hohe Übereinstimmung und unterstützt AI-QCT als einen lebensfähigen nicht-invasiven Ersatz für die katheterbasierte Ischämiediagnostik.

Warum es wichtig ist

CREDENCE directly validates that an AI scan can replace expensive, invasive procedures for judging whether a blockage is flow-limiting.

Definition

A precision gene-editing technique that chemically converts a single DNA base (letter) in the genome to another without cutting the double strand, enabling permanent and targeted changes to a gene's function; in cardiovascular research it has been used in primates to permanently silence the PCSK9 gene in liver cells, producing lasting LDL reductions from a single treatment.

Warum es wichtig ist

Base editing is the mechanism behind the 'one-and-done' gene therapy approach that could eventually eliminate the need for any ongoing cholesterol medication.

Definition

A mass-start bicycle road race contested on a short, closed circuit—typically a city block or similar loop—requiring repeated tight cornering and making crash risk substantially higher than open-road events.

Warum es wichtig ist

Understanding the format explains why finishing safely in a criterium is itself an achievement, separate from placing well.

Definition

In the context of health literacy, the disciplined habit of questioning the source, funding, and methodology behind medical claims before accepting them as fact.

Warum es wichtig ist

Without it, patients are vulnerable to conflicting headlines and commercially motivated health advice.

Definition

A cross-sectional study takes a single snapshot of a population at one moment.

Warum es wichtig ist

It can show that two things occur together but never which came first. Studies of this kind are frequently reported as if they showed cause, and they cannot.

Definition

A non-invasive imaging test that uses computed tomography with intravenous contrast to produce detailed three-dimensional pictures of the coronary arteries, revealing both calcified and non-calcified (soft) plaque as well as luminal narrowing; it offers more information than a calcium score alone.

Warum es wichtig ist

The article specifically recommends CT angiography over a calcium score because it detects soft plaque that a calcium scan would miss.

Definition

CT coronary angiography (also called coronary CT angiography or CCTA) is a non-invasive imaging test that uses a CT scanner and injected contrast dye to produce detailed images of the coronary arteries, revealing both calcified and non-calcified (soft) plaques as well as the degree of any narrowing.

Warum es wichtig ist

Unlike a calcium scan, it shows the type and texture of plaque, helping identify unstable lesions that pose the greatest rupture risk.

Definition

CT-FFR is a non-invasive technique that applies computational fluid dynamics to coronary CT angiography data to estimate the functional significance of a coronary stenosis without an invasive catheter. It helps determine whether an anatomical narrowing seen on imaging is actually restricting blood flow enough to cause ischemia.

Warum es wichtig ist

For athletes with high calcium scores or detected plaques, CT-FFR can clarify whether a narrowing is truly dangerous during peak-effort exercise.

Definition

The Cholesterol Treatment Trialists' Collaboration pools the raw data from every major statin trial rather than just comparing published summaries.

Warum es wichtig ist

With hundreds of thousands of patients, it produced the central finding of modern lipid care: each unit of LDL reduction buys a roughly proportional reduction in events, no matter how you achieve it.

Definition

Der spezifische Ort in einer Koronararterie, der als Ursprung des akuten ischämischen Ereignisses identifiziert wurde, was bei MINOCA eine Plaqueruptur, -erosion, einen Thrombus oder eine Dissektion darstellen kann, die mittels intrakoronarer Bildgebung nachweisbar ist, selbst wenn die Angiographie unauffällig erscheint.

Warum es wichtig ist

Identifying the culprit lesion is crucial for directing the correct treatment in MINOCA rather than applying a one-size-fits-all approach.

Definition

Kumulative Exposition ist die Gesamtmenge an schädlichen Cholesterinpartikeln, denen Ihre Arterien im Laufe Ihres gesamten Lebens ausgesetzt waren – wie hoch, multipliziert mit der Dauer.

Warum es wichtig ist

This is the single most important idea on this site. Someone with a moderately high level since age 20 can end up with more damage than someone with a very high level starting at 55. Plaque adds up. Starting earlier matters more than starting harder.

Definition

Curing a disease means stopping the process that causes it. Reversing means undoing damage that has already been done. They are not the same thing.

Warum es wichtig ist

With heart disease you can stop the process almost completely by driving particle levels low enough. Undoing the existing plaque is slower and only partial. Being clear about which one is being promised matters a great deal when reading health claims.

Definition

Javaneraffen (Macaca fascicularis) sind Altweltaffen, die äußerst empfindlich auf Nahrungscholesterin reagieren und rasch fortgeschrittene, an Kollagen, Elastin und Verkalkungen reiche Koronarläsionen entwickeln; sie wurden auch verwendet, um zu untersuchen, wie psychosozialer Stress und soziale Hierarchie die koronare Atherosklerose durch Aktivierung des sympathischen Nervensystems und erhöhten Cortisolspiegel beschleunigen.

Warum es wichtig ist

They illustrate that stress hormones, not just diet, can drive plaque development—relevant to anyone asking whether psychological stress affects heart risk.

Definition

CYP7A1 (cholesterol 7-alpha-hydroxylase) is the rate-limiting liver enzyme that initiates the conversion of cholesterol to bile acids, representing the primary route by which the body eliminates cholesterol. Because the sterol ring cannot be broken down for energy, this hepatic conversion to bile acids is the main disposal mechanism.

Warum es wichtig ist

Drugs and dietary factors that upregulate CYP7A1 activity can lower circulating cholesterol by increasing its conversion to bile acids for excretion.

Definition

The enzyme that catalyzes the first step of transsulfuration, converting homocysteine to cystathionine with vitamin B-6 as a cofactor; inherited loss-of-function mutations in the CBS gene are the most common cause of classical homocystinuria and severe hyperhomocysteinemia.

Warum es wichtig ist

CBS deficiency is the clearest proof that extremely high homocysteine damages arteries, making it central to understanding why the mild-range evidence looks so different.

Definition

A randomized trial of dalcetrapib, a CETP inhibitor that raised HDL-cholesterol, which found no reduction in cardiovascular events after acute coronary syndrome, contributing to evidence that pharmacologically increasing HDL-C does not reliably translate into clinical benefit.

Warum es wichtig ist

One of several trials showing that HDL elevation alone does not cancel out cardiovascular risk—directly undermining a key defense of coconut oil.

Definition

A landmark longitudinal study that measured cardiovascular changes in healthy young men after prolonged bed rest and then after exercise training; its 30-year follow-up showed that just 20 days of bed rest impaired cardiovascular capacity more than three decades of normal aging in the same individuals.

Warum es wichtig ist

It is the foundational evidence that much of what we call heart aging is actually reversible deconditioning, not inevitable decline.

Definition

Die DASH-Diät (Dietary Approaches to Stop Hypertension) ist ein Ernährungsmuster, das Obst, Gemüse, Vollkornprodukte, fettarme Milchprodukte sowie einen reduzierten Natrium- und gesättigten Fettgehalt betont. Sie wurde ursprünglich in randomisierten Studien auf ihre blutdrucksenkende Wirkung hin entwickelt und getestet und in der Folge auf breitere kardiovaskuläre Vorteile hin untersucht.

Warum es wichtig ist

It is one of the major named dietary patterns compared in evidence reviews of heart disease prevention.

Definition

De novo lipogenesis is your liver manufacturing fat from scratch, mostly out of excess carbohydrate.

Warum es wichtig ist

It is how a very high sugar or refined starch intake ends up raising triglycerides and depositing fat in the liver, even when you are not eating much fat.

Definition

De novo synthesis refers to the construction of a molecule—here cholesterol—entirely from scratch within the cell, starting from small precursors such as acetyl-CoA, rather than acquiring it from the bloodstream or diet. The roughly 30-step pathway is so energetically costly that cells strongly prefer to take up circulating LDL when it is available.

Warum es wichtig ist

Understanding whether a patient overproduces cholesterol or over-absorbs it determines which treatment—a statin or ezetimibe—is likely to work best.

Definition

A type of machine-learning model with many layers of interconnected processing nodes that learns complex, non-linear patterns from large datasets; in cardiac imaging it is trained to detect and quantify plaque features on CT scans.

Warum es wichtig ist

DNN-based analysis underlies the high diagnostic AUC figures quoted in the article and is the technical engine behind AI-assisted coronary plaque reading.

Definition

The dependency threshold is an informal term for the VO₂ max level—roughly 18–20 mL·kg⁻¹·min⁻¹—below which a person lacks sufficient cardiorespiratory reserve to perform basic activities of daily living independently.

Warum es wichtig ist

Knowing this threshold illustrates the direct link between measurable fitness and functional independence in old age.

Definition

Descending inhibitory pathways are neural circuits that originate in the brainstem and travel down the spinal cord to suppress pain signal transmission before it reaches conscious awareness. They are a key component of exercise-induced hypoalgesia and are strengthened by chronic endurance training.

Warum es wichtig ist

They form part of the biological mechanism that elevates an athlete's pain threshold, potentially silencing the cardiac pain that should prompt urgent medical attention.

Definition

A long-chain omega-3 fatty acid with six double bonds that increases membrane fluidity and disorder; unlike EPA, it does not appear to inhibit oxidation of ApoB-containing lipoprotein particles and was not associated with cardiovascular event reduction in mixed EPA/DHA trials.

Warum es wichtig ist

Distinguishing DHA from EPA helps explain why combination omega-3 supplements failed where purified EPA succeeded.

Definition

Diabetes ist eine Erkrankung, bei der der Blutzucker zu hoch bleibt, entweder weil der Körper zu wenig Insulin produziert oder weil er auf das produzierte Insulin nicht mehr reagiert.

Warum es wichtig ist

It roughly doubles heart disease risk. Part of that is the sugar damaging blood vessels, and part is that diabetes usually comes bundled with high triglycerides and a high particle count that a standard cholesterol test can miss.

Definition

Diabetic retinopathy is damage to the small blood vessels in the retina caused by chronically elevated blood sugar; research has shown that ApoB particles can leak through the damaged blood-retinal barrier and deposit as 'hard exudates,' analogous to arterial plaque.

Warum es wichtig ist

It highlights that controlling ApoB particle burden matters for preserving vision, not just preventing heart attacks.

Definition

Diameter stenosis is an angiographic measure of how much a coronary artery's lumen has been narrowed by plaque, expressed as a percentage of the vessel's original diameter; it is used in clinical trials as an objective marker of plaque progression or regression.

Warum es wichtig ist

It is the key measurement used to confirm whether a dietary intervention actually shrinks arterial plaque rather than just improving blood markers.

Definition

Der diastolische Blutdruck ist die untere Zahl bei einer Blutdruckmessung. Er ist der Druck in Ihren Arterien, während sich das Herz zwischen den Schlägen entspannt.

Warum es wichtig ist

In younger adults it is often the more meaningful of the two numbers. In older adults, the top number usually matters more because arteries have stiffened.

Definition

Dietary cholesterol is the cholesterol in food — eggs, shrimp, liver, and other animal products.

Warum es wichtig ist

For most people it has a surprisingly small effect on blood cholesterol, because the body compensates by making less. Saturated fat in food generally raises blood cholesterol more than cholesterol in food does. This is why egg advice kept flip-flopping for decades.

Definition

A pattern of atherosclerosis regression in which luminal widening occurs broadly across an entire arterial segment rather than only at a single focal stenosis; the Megdal study documents this via Average Lumen Diameter improvement between the standardized red tick marks on both the LAD and Circumflex, ruling out focal mechanical intervention as the cause.

Warum es wichtig ist

Diffuse reversal proves the whole artery wall is healing, not just one spot that might have been stented.

Definition

DISCO-CT war eine randomisierte Bildgebungsstudie, die eine DASH-zentrierte Ernährung und ein Lebensstilprogramm zur optimalen medizinischen Therapie hinzufügte und die Koronarplaque mittels CT maß; sie ergab keinen Unterschied in der Gesamtplaquebelastung zwischen den Gruppen, aber eine größere Reduktion einer breit definierten, nicht verkalkten Plaquekomponente in der Ernährungsgruppe.

Warum es wichtig ist

It is one of the few controlled trials to look at whether diet changes actual plaque on a CT scan, and its mixed results illustrate how hard that question is to answer.

Definition

See ApoB Discordance for the full entry.

Definition

A process in which measurable markers of cardiovascular disease—such as arterial plaque burden or coronary stenosis—improve significantly in response to intensive lifestyle modification, nutrition, and/or medical therapy, to the point where the disease no longer produces symptoms or detectable progression.

Warum es wichtig ist

Distinguishing reversal from mere stabilization is important for patients setting realistic goals for lifestyle and medical intervention.

Definition

The diurnal cortisol slope is the rate at which cortisol falls from its morning peak to its evening low over the course of a day. A flatter slope — meaning cortisol stays too high into the evening — has been associated in some studies with worse cardiovascular outcomes, including cardiovascular mortality in the Whitehall II cohort.

Warum es wichtig ist

It shifts the conversation from 'is my cortisol high?' to 'is my cortisol rhythm healthy?' — a more meaningful question for heart health.

Definition

DMB (3,3-dimethyl-1-butanol) is a naturally occurring compound found in some olive oils that acts as a competitive inhibitor of the microbial TMA lyase enzyme (CutC/D), reducing TMA and TMAO production without killing gut bacteria and thereby avoiding the risk of antibiotic resistance.

Warum es wichtig ist

DMB represents a new class of targeted, non-antibiotic interventions that could lower cardiovascular risk by modulating the microbiome.

Definition

An epigenetic biological-age model that integrates DNA methylation patterns with measures of cardiorespiratory fitness to estimate how physiologically 'young' an individual is relative to their chronological age.

Warum es wichtig ist

It offers a way to quantify the anti-aging effect of high fitness levels beyond simple performance metrics.

Definition

A guanine nucleotide exchange factor that is recruited to the cytoplasmic domain of SR-B1 following LDL binding, and activates the small GTPase Rac1 to trigger actin cytoskeleton remodeling required for endothelial transcytosis of LDL particles.

Warum es wichtig ist

DOCK4 is a key link in the molecular chain that moves LDL from the bloodstream into the artery wall—blocking any step in this chain could reduce plaque formation.

Definition

Donanemab is an anti-amyloid monoclonal antibody that targets a modified form of amyloid-beta and, like lecanemab, has been shown to remove plaques and modestly slow Alzheimer's progression in clinical trials, with similar risks of brain swelling and bleeding.

Warum es wichtig ist

Alongside lecanemab, it confirms amyloid removal is achievable but not curative, reinforcing the case that other upstream causes — including vascular disease — must be addressed.

Definition

The Danish Osteoporosis Prevention Study (DOPS) was a randomized trial in which women who had just started menopause took oral hormone therapy for ten years; at follow-up, the hormone group had roughly half the rate of major cardiovascular events or death compared with the placebo group, providing one of the strongest hard-outcome signals for early hormone initiation.

Warum es wichtig ist

DOPS is one of the few randomized trials reporting actual heart attacks and deaths as endpoints, not just surrogate measures.

Definition

Eine Dosis-Wirkungs-Beziehung bedeutet, dass eine größere Menge von etwas in einem konsistenten Gradienten eine stärkere Wirkung hervorruft.

Warum es wichtig ist

It is one of the classic signs that a relationship is causal rather than coincidental. LDL and heart disease show it clearly: the higher and the longer, the more plaque.

Definition

Eine Dosis-Wirkungs-Beziehung beschreibt, wie sich das Ausmaß einer biologischen Wirkung verändert, wenn die Höhe einer Exposition (wie wöchentliche Trainingsminuten) zunimmt; in diesem Artikel zeigt Krafttraining eine nicht-lineare Dosis-Wirkungs-Beziehung in Bezug auf die Mortalität, wobei sich der Nutzen bei etwa 120 Minuten pro Woche einpendelt und bei sehr hohen Volumina bei älteren Frauen eine J-förmige Kurve entsteht.

Warum es wichtig ist

Knowing that 'more is not always better' is one of the article's central practical messages.

Definition

A DPP-4 inhibitor is an oral medication that blocks the enzyme dipeptidyl peptidase-4, which normally degrades the body's own GLP-1; by slowing GLP-1 breakdown, these pills raise endogenous GLP-1 levels by only two- to threefold — far less than injectable GLP-1 receptor agonists — and large trials such as SAVOR-TIMI 53 found they do not reduce cardiovascular events.

Warum es wichtig ist

The article uses DPP-4 inhibitors to explain why the dose and potency of GLP-1 activation matters for heart protection, not just the drug class.

Definition

A urine or blood sample collected by officials after a competition to screen for prohibited performance-enhancing substances under the rules of the governing body; athletes setting national or world records are routinely tested to validate the result.

Warum es wichtig ist

Anti-doping testing ensures that record performances reflect genuine cardiovascular and physiological capacity rather than pharmacological enhancement.

Definition

A drug-eluting stent is a small metal mesh tube coated with a medication that is inserted into a narrowed coronary artery to hold it open; the drug coating slowly releases an agent that inhibits scar tissue growth inside the stent, reducing the risk of the vessel re-narrowing.

Warum es wichtig ist

DES are the modern stents used in the trials discussed here; understanding their design helps explain why they were expected to outperform earlier bare-metal stents in preventing re-blockage.

Definition

The combined use of two platelet-inhibiting drugs—typically aspirin and clopidogrel—prescribed after stent implantation to prevent clot formation inside the stent, usually continued for approximately six months after a drug-eluting stent procedure.

Warum es wichtig ist

DAPT is essential after stenting but carries its own risk of serious bleeding, illustrating the ongoing trade-offs patients and physicians must weigh.

Definition

A dual GIP/GLP-1 receptor agonist is a drug — tirzepatide being the leading example — that simultaneously activates receptors for both glucagon-like peptide-1 and glucose-dependent insulinotropic polypeptide, two incretin hormones, producing greater weight loss, lipid improvement, and metabolic benefit than GLP-1 receptor agonism alone.

Warum es wichtig ist

Knowing that tirzepatide targets two receptors explains why its weight-loss and metabolic effects often exceed those of older GLP-1 drugs.

Definition

Dyslipidemia is the medical word for an unhealthy pattern of fats in the blood. It can mean high LDL, high triglycerides, low HDL, or some combination.

Warum es wichtig ist

The word describes a pattern rather than one number, which is why treatment depends on which part is off and why.

Definition

Early trial termination occurs when a clinical study is stopped before its planned endpoint, often because interim data appear strongly favorable; this practice tends to inflate the apparent magnitude of treatment effects and reduce the reliability of the findings.

Warum es wichtig ist

PREDIMED was stopped early, which is one reason the article argues its reported 30% risk reduction should be interpreted with caution.

Definition

A prospective neurocognitive substudy of the FOURIER trial that used objective cognitive testing in nearly 2,000 patients to assess whether evolocumab-driven LDL lowering affected memory or cognition, finding no meaningful difference versus placebo over a median follow-up of 19 months.

Warum es wichtig ist

It is the most direct clinical trial evidence on whether very low LDL harms brain function.

Definition

Eccentric remodeling is the adaptive enlargement and strengthening of the heart's ventricular walls that occurs in response to sustained aerobic exercise, resulting in a larger stroke volume and greater cardiac output; it is distinct from the pathological enlargement seen in heart disease.

Warum es wichtig ist

This healthy structural change is a key reason fit people have greater cardiac reserve and lower mortality risk.

Definition

A CT imaging technique that synchronizes image acquisition to the electrical signal of the heart recorded by an electrocardiogram, minimizing motion blur so that coronary structures can be measured accurately; it is the standard method for CAC scoring.

Warum es wichtig ist

ECG gating is what allows the scanner to capture sharp images of constantly moving coronary arteries.

Definition

An echocardiogram is an ultrasound picture of your heart. A technician moves a probe across your chest and sound waves build a moving image of the chambers and valves.

Warum es wichtig ist

It shows how well the heart is pumping and whether the valves are working. It does not show plaque in the coronary arteries, so a normal echo does not mean your arteries are clear.

Definition

Ectopic fat refers to lipid deposits that accumulate in organs not designed for fat storage — including the liver, pancreas, skeletal muscle, and myocardium — causing local lipotoxicity and impairing organ function when subcutaneous storage capacity is overwhelmed.

Warum es wichtig ist

Fat in the liver or heart muscle is directly harmful to those organs in ways that fat under the skin is not.

Definition

A measure of the total afterload—the resistance and pressure load—that the left ventricle must overcome to eject blood into the aorta; as central arteries stiffen with age or inactivity, Ea rises, forcing the heart to work harder with each beat.

Warum es wichtig ist

Rising afterload from stiff arteries is a key pathway to heart failure, so understanding Ea explains why arterial stiffness matters beyond just blood pressure.

Definition

The minimum time interval after an electrical impulse during which cardiac tissue cannot be re-stimulated; alcohol acutely shortens the atrial ERP, particularly in the pulmonary veins, making the heart more susceptible to the re-entrant electrical circuits that underlie atrial fibrillation.

Warum es wichtig ist

Shortening of this period is a key electrical mechanism by which even modest alcohol exposure raises arrhythmia risk.

Definition

Efferocytosis is the housekeeping process by which immune cells clear away other cells that have died.

Warum es wichtig ist

Inside a plaque this cleanup fails. Dead foam cells pile up instead of being removed, and that debris becomes the necrotic core. Restoring the cleanup is an active area of drug research.

Definition

The epidermal growth factor-like repeat A domain of the LDL receptor to which PCSK9 binds; this binding targets the receptor for lysosomal degradation rather than recycling, and is the molecular site interrupted by PCSK9 inhibitor drugs.

Warum es wichtig ist

Knowing the precise binding site clarifies how both monoclonal antibodies and CRISPR-based therapies disrupt PCSK9's action.

Definition

eGFR is a calculated measure of how efficiently the kidneys filter waste from the blood; because TMAO is cleared almost entirely by the kidneys, a falling eGFR causes TMAO to accumulate in the bloodstream independent of diet or gut bacteria. The article identifies reduced eGFR as the single largest confounder in studies linking high TMAO to cardiovascular events.

Warum es wichtig ist

Without accounting for kidney function, studies can wrongly conclude that TMAO itself causes heart disease.

Definition

Ejection fraction is the percentage of blood the main pumping chamber squeezes out with each beat. A normal value is somewhere around 55 to 70 percent.

Warum es wichtig ist

A low number means the heart is not pumping strongly, often after a heart attack or from long-standing high blood pressure.

Definition

Elastin ist ein Strukturprotein in der Arterienwand, das es den Blutgefäßen ermöglicht, sich bei jedem Herzschlag zu dehnen und wieder zusammenzuziehen; mit zunehmendem Alter baut es sich ab und wird durch steiferes Kollagen ersetzt, was zur Arterienversteifung und einem Anstieg des systolischen Blutdrucks beiträgt.

Warum es wichtig ist

Understanding elastin explains why arteries naturally stiffen with age and why blood pressure patterns change after 60.

Definition

An electrocardiogram — ECG or EKG — records your heart's electrical activity through stickers placed on your skin. It takes about a minute and is painless.

Warum es wichtig ist

It can reveal rhythm problems, signs of a current or past heart attack, and some inherited electrical conditions that put young athletes at risk. It is a normal-looking test in many people who still have significant plaque.

Definition

Ein Elektrophysiologe, der sich auf das Reizleistungs- und elektrische System des Herzens spezialisiert hat, Arrhythmien diagnostiziert und behandelt, Katheterablationen durchführt und Vorhofflimmern bei Sportlern behandelt.

Warum es wichtig ist

The article repeatedly directs athletes to seek individualized care from an electrophysiologist.

Definition

The ELITE trial (Early versus Late Intervention Trial with Estradiol) was a randomized trial of 643 women that tested whether starting oral estradiol early (fewer than six years after menopause) versus late (ten or more years after) produced different effects on carotid artery wall thickening; it found slower CIMT progression only in the early-initiation group, providing surrogate-level support f…

Warum es wichtig ist

ELITE is the most direct randomized evidence for why starting hormones near menopause may matter for vascular health.

Definition

An emergency action plan is a written, practiced plan for what happens if someone collapses at a school, gym, or sporting event: who calls 911, who starts CPR, and who runs for the defibrillator.

Warum es wichtig ist

Places with a rehearsed plan save dramatically more lives than places that simply own a defibrillator. Having the equipment is not the same as knowing what to do with it.

Definition

The endocannabinoid system is a network of endogenous lipid signaling molecules and their receptors (including cannabinoid receptors CB1 and CB2) that modulates pain, mood, and energy balance throughout the nervous system. Research now indicates it plays a central role in exercise-induced hypoalgesia, with the runner's high depending on cannabinoid receptor signaling rather than opioid receptors…

Warum es wichtig ist

It is a key reason why an athlete's natural pain-blocking ability is so powerful—and why that ability can mask cardiac warning signals during exercise.

Definition

Cellular mechanisms by which material outside the cell is engulfed in vesicles (endocytosis) and processed through lysosomes; in this context, the route by which dietary Neu5Gc enters human cells and is incorporated into cell-surface structures.

Warum es wichtig ist

Explains how a sugar from food physically becomes part of your own tissues, which is the biological basis of the Neu5Gc concern.

Definition

The thin layer of cells lining the inner surface of all blood vessels; they regulate vascular tone, prevent clotting, and control the passage of substances into the artery wall — and their dysfunction is an early, critical step in atherosclerosis.

Warum es wichtig ist

The study's central mechanism hinges on microplastics injuring these cells, triggering inflammation and plaque growth.

Definition

Endothelial dysfunction is when that thin lining stops doing its job well. Vessels don't widen properly, and the barrier gets leakier.

Warum es wichtig ist

It is one of the earliest changes in heart disease, showing up long before any plaque is visible on a scan. Smoking, high blood pressure, high blood sugar, and high particle counts all damage it.

Definition

Die Fähigkeit der inneren Auskleidung von Blutgefäßen, den Gefäßtonus, Entzündungen und die Blutgerinnung zu regulieren; gesunde Endothelzellen setzen Stickstoffoxid frei, um die Arterien entspannt und resistent gegen Plaquebildung zu halten.

Warum es wichtig ist

Impaired endothelial function is an early, reversible step in atherosclerosis, making it a key target of diet and exercise interventions.

Definition

The endothelial glycocalyx is a thin, gel-like layer of glycoproteins and proteoglycans lining the inner surface of blood vessels; it acts as a selective barrier that limits direct contact between circulating lipoproteins and the arterial wall, and is vulnerable to disruption by disturbed or high-velocity blood flow.

Warum es wichtig ist

The article proposes that decades of intense exercise may 'shed' this protective coating at arterial bends, allowing ApoB-containing particles to enter the wall and initiate plaque.

Definition

Endothelial nitric oxide synthase is the enzyme in artery-lining cells responsible for producing nitric oxide, which relaxes blood vessels and suppresses clot formation; in insulin resistance, impaired insulin-receptor signaling downregulates eNOS, reducing nitric oxide availability and promoting an adhesive, pro-inflammatory arterial surface.

Warum es wichtig ist

Reduced eNOS activity is a key reason insulin resistance damages blood vessels beyond just altering cholesterol particles.

Definition

Bone-marrow-derived precursor cells that circulate in the bloodstream and home to sites of endothelial injury, where they participate in re-endothelialization and microvascular repair; their mobilization is enhanced by statins, aerobic exercise, and whole-food plant-based nutrition.

Warum es wichtig ist

They represent one mechanism by which lifestyle and pharmacologic therapy restore the artery's inner lining, reducing future plaque vulnerability.

Definition

Endothelial vasomotor response is the capacity of the arterial inner lining to release signals—chiefly nitric oxide—that cause the vessel to relax and expand; this function is impaired in atherosclerosis and was shown in primate studies to partially recover relatively early in cholesterol-lowering treatment.

Warum es wichtig ist

Recovery of this response is one reason risk falls before plaques visibly shrink, making it important for understanding the timeline of benefit.

Definition

The process by which a single layer of endothelial cells grows to cover the inner surface of a stent, restoring a natural lining to the artery wall and reducing the risk of clot formation on the exposed metal.

Warum es wichtig ist

Incomplete endothelialization is a key reason clots can form years after stent implantation, making it central to long-term stent safety.

Definition

The endothelium is the ultra-thin, slippery lining on the inside of every blood vessel. It is only one cell thick.

Warum es wichtig ist

It is far more than a coating. It controls how much your vessels relax or tighten, keeps blood from clotting where it shouldn't, and decides what gets through into the wall. When it stops working properly, cholesterol particles slip in more easily.

Definition

The number of calories per gram (or per unit volume) of a food; high-fibre, water-rich plant foods have low energy density, meaning larger volumes can be eaten for fewer calories, promoting satiety and spontaneous calorie reduction without deliberate restriction.

Warum es wichtig ist

The article identifies low energy density as a key mechanism by which whole-food plant-based diets facilitate weight loss and metabolic improvement.

Definition

A dysfunctional state of endothelial nitric oxide synthase in which the enzyme produces superoxide rather than nitric oxide, amplifying oxidative stress and reducing vasodilatory capacity; it is reversed as tetrahydrobiopterin availability is restored during plaque regression.

Warum es wichtig ist

It explains why oxidative stress directly impairs the artery's ability to relax and why restoring eNOS function is a key goal of both dietary and pharmacologic therapy.

Definition

A long-chain omega-3 fatty acid found in marine oils that, in purified form, inhibits oxidation of ApoB-containing lipoprotein particles and exerts anti-inflammatory effects on the arterial wall; it differs structurally and biologically from DHA.

Warum es wichtig ist

Knowing that EPA and DHA are distinct molecules with different effects explains why only certain fish-oil formulations showed cardiovascular benefit in trials.

Definition

Eine große prospektive Kohortenstudie aus dem Vereinigten Königreich, die einen beträchtlichen Anteil von Vegetariern und Veganern rekrutierte und Teil der umfassenderen European Prospective Investigation into Cancer and Nutrition ist; sie berichtete über ein höheres Gesamtschlaganfallrisiko – angetrieben durch hämorrhagischen Schlaganfall – bei Vegetariern im Vergleich zu Fleischessern.

Warum es wichtig ist

EPIC-Oxford is one of the main sources of evidence that vegetarian diets are not universally protective for all cardiovascular outcomes, particularly stroke.

Definition

Die epikardialen Koronarterien sind die großen, oberflächlich verlaufenden Arterien, die an der Außenseite des Herzens entlanglaufen und als Hauptleitungen für die Blutversorgung des Herzmuskels dienen; sie sind die Gefäße, in denen sich atherosklerotische Plaque überwiegend bildet und die das primäre Ziel von koronarbildgebenden Untersuchungen sind.

Warum es wichtig ist

The article discusses how these specific vessels are exposed to unique mechanical forces during exercise and where athlete-specific plaque accumulation is detected on imaging.

Definition

Epidemiologie ist die Erforschung von Gesundheitstrends in großen Bevölkerungsgruppen – wer erkrankt, wo und was diese Personen gemeinsam hatten.

Warum es wichtig ist

It generates most of the diet headlines you see. It is genuinely useful for spotting clues, but on its own it cannot prove that one thing caused another.

Definition

A heritable chemical modification—specifically the addition of methyl groups to DNA promoter regions—that alters gene expression without changing the DNA sequence; in fetal aortas exposed to maternal hypercholesterolemia, altered methylation of regulatory regions including those controlling SREBP2 is associated with early atherosclerotic lesion formation.

Warum es wichtig ist

It provides a molecular mechanism explaining how a mother's cholesterol can permanently change how her child's body regulates its own cholesterol.

Definition

In the cardiovascular context, erectile dysfunction is recognized as an early clinical manifestation of systemic endothelial and microvascular disease, because the penile arteries (1–2 mm diameter) reach a symptomatic threshold of narrowing several years before the larger coronary arteries (3–4 mm) do. Studies cite ED as an approximately 3-to-5-year warning sign preceding coronary events in men w…

Warum es wichtig ist

Recognizing ED as a potential vascular warning rather than an isolated problem can prompt life-saving cardiovascular screening years before a heart attack.

Definition

Jede ernährungsbezogene, pharmakologische oder physikalische Intervention, die darauf abzielt, die sportliche Leistungsfähigkeit über die normale Kapazität hinaus zu steigern; der Begriff wird verwendet, um zu bewerten, ob ein Nahrungsergänzungsmittel wie exogene Ketone einen nachgewiesenen Wettbewerbsvorteil bietet.

Warum es wichtig ist

The term appears without definition when the article questions whether ketone drinks are 'universally proven ergogenic aids.'

Definition

An ergometer is a stationary exercise device—commonly a cycle or treadmill—used in a clinical setting to deliver a controlled, measurable workload while the patient is monitored, typically with an ECG and blood pressure readings. It is the standard platform for exercise stress testing used to provoke and detect signs of myocardial ischemia.

Warum es wichtig ist

Knowing what an exercise stress test involves helps patients understand how ischemia is unmasked in people who show no symptoms at rest.

Definition

A standardized exercise test performed on a stationary cycle ergometer (or similar device) at progressively increasing workloads to assess cardiovascular function and detect ischemia; Peter Megdal's abnormal result prompted further investigation that revealed coronary artery disease.

Warum es wichtig ist

Knowing what triggered a diagnosis helps readers understand which tests can catch hidden heart disease.

Definition

Erythrocytosis is an abnormal increase in the number of circulating red blood cells, raising blood viscosity (hematocrit); it is a recognized side effect of testosterone therapy because testosterone stimulates red blood cell production, and monitoring hematocrit (with a clinical threshold around 54%) is standard practice during treatment.

Warum es wichtig ist

Thick blood can strain the cardiovascular system, so this is a key safety parameter doctors track in men on testosterone therapy.

Definition

The Esselstyn program is an extremely low-fat, plant-exclusive dietary protocol developed by cardiologist Caldwell Esselstyn at the Cleveland Clinic, which eliminates all animal products and added oils and has been studied as a means of halting and reversing coronary artery disease. The article's interviewee cites Esselstyn's book as a foundational source in his personal research.

Warum es wichtig ist

It is one of the most cited dietary interventions in discussions of heart disease reversal and is directly referenced in the article.

Definition

The nine amino acids—including leucine—that the human body cannot synthesize in adequate amounts and must obtain from diet; adequate EAA availability, particularly leucine, is required to activate muscle protein synthesis, and their sufficiency becomes more critical as anabolic resistance develops with aging.

Warum es wichtig ist

EAA content, not just total grams of protein, determines whether a meal actually triggers muscle maintenance in older adults.

Definition

A naturally occurring estrogen produced by the fetal liver during pregnancy, now under clinical investigation as a menopausal hormone therapy candidate; it is thought to have a more selective tissue profile than conventional estrogens, potentially offering symptom relief with a refined safety profile.

Warum es wichtig ist

As a newer treatment option, E4 represents the shift toward more targeted menopause therapies with potentially fewer systemic risks.

Definition

A model proposing that rapid physiological drops or swings in estradiol levels—rather than chronically low absolute levels—are the primary trigger for mood instability, irritability, and anxiety during the menopausal transition.

Warum es wichtig ist

This helps explain why some women feel emotionally destabilized even before estrogen reaches its lowest postmenopausal levels.

Definition

Estrogen is a hormone, present at much higher levels in women before menopause, that affects blood vessels, cholesterol, and bone.

Warum es wichtig ist

It appears to offer some protection to arteries, which is part of why women tend to develop heart disease about ten years later than men. What happens when estrogen drops at menopause, and whether replacing it helps, is more complicated than it was once made to sound.

Definition

A clinical trial that used serial CCTA to track coronary plaque composition over time in patients receiving icosapent ethyl (a purified omega-3 fatty acid); it demonstrated that the drug produced regression of low-attenuation plaque, establishing CCTA as a tool for monitoring plaque response to therapy.

Warum es wichtig ist

It shows that AI-assisted CT imaging can measure whether treatment is actually shrinking the most dangerous type of plaque.

Definition

An approach to clinical decision-making that integrates the best available research evidence with clinical expertise and patient values, rather than relying on tradition or anecdote alone.

Warum es wichtig ist

Knowing what 'evidence-based' means helps readers evaluate whether a health intervention has scientific support or is based on personal belief.

Definition

Evinacumab is an injectable antibody that blocks ANGPTL3, used for the most severe inherited cholesterol disorders.

Warum es wichtig ist

It works even in patients whose LDL receptors barely function, because it lowers cholesterol by a route that does not depend on them. For children with the homozygous form, that distinction is life-changing.

Definition

Evolocumab ist ein injizierbares Cholesterinmedikament aus der Familie der PCSK9-Hemmer, das normalerweise alle zwei bis vier Wochen verabreicht wird.

Warum es wichtig ist

It works by protecting the liver's cholesterol-removing receptors, and it can cut LDL and ApoB by half or more even in people already on a statin.

Definition

Exercise capacity is a quantitative measure of the maximum physical work a person can perform, typically assessed during a graded stress test as peak workload in watts, peak oxygen consumption (VO2 max), or metabolic equivalents (METs). In the article, a decline in exercise capacity four months after stenting indicated that the procedure alone had not resolved the underlying disease.

Warum es wichtig ist

Exercise capacity is both a practical measure of fitness and an independent predictor of cardiovascular prognosis, making changes in it clinically meaningful.

Definition

Der Sauerstoffbedarf für eine bestimmte Leistungsabgabe oder Bewegungsgeschwindigkeit; trainierte Radfahrer behalten ihre sportliche Ökonomie mit zunehmendem Alter trotz sinkender absoluter aerober Kapazität weitgehend bei und bewahren so ihre Effizienz.

Warum es wichtig ist

It helps explain why older elite athletes can still perform well despite lower VO₂max—they waste less oxygen per watt of power produced.

Definition

A standardized clinical test in which a patient walks or runs on a treadmill at progressively increasing speeds and inclines while heart rate, blood pressure, and ECG are monitored; it can estimate cardiorespiratory fitness and detect myocardial ischemia.

Warum es wichtig ist

The 122,000-patient landmark study the article cites used exercise treadmill testing to classify participants into fitness quartiles and link fitness to mortality.

Definition

Exercise-induced hypoalgesia is the reduction in pain perception that occurs during and after intense physical activity, caused by the release of endogenous opioids and other pain-dampening chemicals; in athletes, this effect can mask cardiac ischemia by blunting the chest pain that would otherwise signal inadequate blood flow to the heart.

Warum es wichtig ist

It helps explain why fit people can have serious heart disease without ever feeling the classic warning signs.

Definition

Übelkeit, die während oder unmittelbar nach intensivem Training auftritt; obwohl sie oft auf die Trainingsintensität oder die Hydratation zurückgeführt wird, kann sie im Kontext einer koronaren Herzkrankheit ein atypisches Symptom einer Myokardischämie sein, das Sportler häufig als normale Trainingsreaktion abtun.

Warum es wichtig ist

The author's interval-session nausea turned out to be ischemia — highlighting how atypical symptoms in fit people can mask serious cardiac disease.

Definition

Ketonkörper – am häufigsten β-Hydroxybutyrat –, die direkt als Getränke oder Ester konsumiert statt vom Körper durch Kohlenhydratrestriktion produziert werden; sie erhöhen den Blutketonspiegel schnell, ohne dass eine Ernährungsumstellung erforderlich ist, und werden sowohl als Forschungsinstrumente als auch als vorgeschlagene ergogene Nahrungsergänzungsmittel verwendet.

Warum es wichtig ist

Knowing the difference between diet-induced and supplement-induced ketosis helps readers critically assess performance and health claims made for ketone products.

Definition

Die Exom-Sequenzierung ist eine genomische Technik, die die proteinkodierenden Abschnitte des Genoms liest. Sie ermöglicht es Forschern, seltene kodierende Varianten – einschließlich Loss-of-Function-Mutationen – zu identifizieren, die erhebliche Auswirkungen auf das Krankheitsrisiko haben können; sie wurde eingesetzt, um schützende Varianten in Genen wie CIDEB und ZNRF3 zu entdecken, die bei standardmäßigen GWAS übersehen würden.

Warum es wichtig ist

It uncovers rare but powerful genetic protections against heart disease that population-level studies overlook.

Definition

The expandability hypothesis proposes that individuals differ in the maximum safe lipid-storage capacity of their subcutaneous fat; when that capacity is exceeded, excess lipids spill into ectopic sites — liver, pancreas, skeletal muscle, and heart — causing lipotoxicity and metabolic dysfunction.

Warum es wichtig ist

It explains why two people with the same total fat mass can have very different metabolic health outcomes depending on where their bodies store the excess.

Definition

The external elastic membrane is the boundary between an artery's muscular wall and surrounding connective tissue; in intravascular imaging, the area enclosed by the EEM is used to quantify total vessel size including both the open channel and the plaque within the wall.

Warum es wichtig ist

Measuring to the EEM rather than just the lumen reveals how much the artery has remodeled outward to accommodate hidden plaque — information a standard angiogram cannot provide.

Definition

Cold-pressed olive oil that meets international standards for low acidity and sensory quality; unlike refined olive oil, it retains natural polyphenols and other minor bioactive compounds that may have antioxidant and anti-inflammatory properties.

Warum es wichtig ist

EVOO is frequently contrasted with seed oils in cardiovascular research, and knowing what distinguishes it from ordinary olive oil helps you evaluate the evidence more accurately.

Definition

The extracellular matrix is the scaffolding of collagen and other fibers that holds tissue together and gives an artery wall its strength.

Warum es wichtig ist

It is what a fibrous cap is made of. When inflammatory enzymes break it down faster than cells rebuild it, the cap thins and the plaque becomes fragile.

Definition

Extrahepatic synthesis refers to cholesterol production occurring outside the liver—in skeletal muscle, skin, kidney, intestine, and other tissues—which in humans accounts for roughly 90% of total daily cholesterol synthesis.

Warum es wichtig ist

This challenges the common assumption that the liver is the body's primary cholesterol factory and clarifies why plasma cholesterol levels reflect transport, not the body's total production.

Definition

Ezetimib ist eine Tablette, die die Aufnahme von Cholesterin im Darm blockiert.

Warum es wichtig ist

On its own it lowers cholesterol modestly. Its real value is as a partner drug — added to a statin, it pushes levels lower without increasing the statin dose, and it very rarely causes side effects.

Definition

The Fractional Flow Reserve Versus Angiography for Multivessel Evaluation 2 trial compared FFR-guided PCI against medical therapy alone in stable coronary artery disease, finding that PCI significantly reduced urgent repeat procedures but did not significantly lower mortality or spontaneous heart attack rates at up to 11 years.

Warum es wichtig ist

It explains why stents are still widely used—they reliably relieve symptoms and prevent emergency hospital visits, even if they don't extend life.

Definition

Familial defective ApoB-100 is a genetic disorder caused by a mutation in the APOB gene — most commonly the R3500Q (p.Arg3527Gln) variant — that impairs the ability of LDL particles to bind to the LDL receptor, resulting in lifelong elevation of LDL-C and increased atherogenic particle burden.

Warum es wichtig ist

It explains why some people have high cholesterol from birth due to a single inherited variant rather than lifestyle, and why that exposure compounds into significant coronary disease over time.

Definition

Familiäre Hypercholesterinämie, kurz FH, ist eine vererbte Erkrankung, bei der die Leber Cholesterin nicht richtig aus dem Blut entfernen kann. Die Werte sind von Geburt an sehr hoch.

Warum es wichtig ist

Roughly one in 250 people has it, and most of them don't know. Because the exposure starts in childhood, heart attacks can happen in a person's thirties or forties. It is one of the strongest arguments for checking cholesterol early rather than waiting for middle age.

Definition

Familial hypobetalipoproteinemia is a genetic condition caused by mutations in the APOB gene that produce truncated, secretion-incompetent proteins, resulting in markedly reduced circulating LDL-C (20–50 mg/dL in heterozygotes, below 10 mg/dL in homozygotes). Affected individuals show substantially lower lifetime ASCVD risk, and homozygotes exhibit minimal plaque on imaging and in autopsy data, r…

Warum es wichtig ist

It demonstrates that naturally very low LDL from birth is compatible with normal health and strongly protective against heart disease.

Definition

Family history means whether your close relatives developed heart disease, and how young they were when it happened.

Warum es wichtig ist

Early disease in a parent or sibling — before about 55 in men or 65 in women — is a meaningful warning sign. It can reflect shared genes, shared habits, or both, and it should push you toward testing sooner rather than later.

Definition

The Family History Index is the numerical output produced by the Inherited Hazard Coefficient formula; it summarizes the aggregate inherited cardiac signal across a person's family tree in a single score that can be used to guide screening decisions.

Warum es wichtig ist

Understanding what the index represents helps users interpret their app result and explain it to a clinician.

Definition

The farnesoid X receptor (FXR) is a nuclear bile acid receptor expressed predominantly in the liver and intestine that, among its many functions, regulates the activity of FMO3 — the hepatic enzyme responsible for converting TMA into TMAO — thereby influencing systemic TMAO levels.

Warum es wichtig ist

FXR links bile acid signaling to TMAO metabolism, suggesting that liver health and diet composition together shape cardiovascular risk through this pathway.

Definition

A metabolic pathway in which cells break down fatty acids to generate ATP when preferred fuels like glucose are insufficient; during estrogen deficiency, the brain may shift toward FAO, which has been linked to white matter injury and increased ketone-body burden.

Warum es wichtig ist

This alternative fuel-burning mode helps explain why prolonged menopause may affect brain structure and long-term cognitive resilience.

Definition

Fatty liver is fat accumulating inside liver cells, now usually called metabolic dysfunction-associated steatotic liver disease.

Warum es wichtig ist

It is extremely common, usually silent, and closely tied to insulin resistance. A fatty liver also produces more ApoB particles, so it raises cardiovascular risk as well as liver risk.

Definition

A fatty streak is the earliest visible stage of atherosclerosis — a flat yellow smear of cholesterol-filled immune cells just under the artery lining.

Warum es wichtig ist

They appear in childhood and are present in most teenagers. Not all become plaques, but they are where the process starts, which is why prevention is increasingly discussed as a lifelong matter.

Definition

The Fate of Early Lesions in Children (FELIC) study examined aortic tissue from children aged 1 to 13 who died of non-cardiovascular causes and compared lesion sizes with those seen in fetal specimens, providing indirect evidence that some fetal fatty streaks regress after birth while also showing that children of hypercholesterolemic mothers accumulate lesions faster through childhood.

Warum es wichtig ist

It is the key evidence that early arterial damage is not necessarily permanent—but also that maternal cholesterol during pregnancy leaves a lasting biological tendency.

Definition

Dairy products such as yogurt, kefir, and aged cheese in which bacteria or molds have partially broken down lactose and proteins, altering the food's matrix and bioactive compound profile; Astrup's research cited in the article suggests saturated fat from fermented dairy does not carry the same cardiovascular risk as saturated fat from ultra-processed foods.

Warum es wichtig ist

Distinguishing fermented from non-fermented dairy refines dietary advice beyond a simple 'avoid saturated fat' message and illustrates the food-matrix principle.

Definition

The process by which the intrauterine environment—particularly maternal nutrition and metabolic state—permanently alters gene expression and metabolic set-points in the developing fetus, with lasting consequences for cardiovascular and metabolic health in later life.

Warum es wichtig ist

It means a mother's cholesterol during pregnancy can leave a lasting biological imprint on her child's arteries before birth.

Definition

FFR is a catheter-based measurement of the pressure drop across a coronary artery narrowing during maximal blood flow; a value of 0.80 or below indicates that the blockage is significantly restricting blood flow and is used to decide whether a stent is physiologically justified.

Warum es wichtig ist

FAME 2, a key trial in this article, used FFR guidance to select patients for stenting, making it important to understand what FFR measures and why it changes stenting decisions.

Definition

FGF21 is a myokine and metabolic hormone produced by muscle (and liver) during exercise that improves insulin sensitivity and glucose uptake by enhancing insulin signaling in target tissues. The article identifies it as one of the biochemical mediators through which strength training may reduce cardiovascular risk.

Warum es wichtig ist

Better glucose handling reduces a key driver of atherosclerosis, linking muscle biology directly to heart protection.

Definition

Ballaststoffe sind der Teil pflanzlicher Nahrung, den der Körper nicht verdauen kann. Sie sind in Bohnen, Haferflocken, Gemüse, Obst und Vollkornprodukten enthalten.

Warum es wichtig ist

Soluble fiber grabs onto bile in your gut and carries it out, which forces your liver to pull cholesterol from your blood to make more. That is a genuine cholesterol-lowering effect from food, not just a general healthy-eating claim.

Definition

Fibrates are pills that lower triglycerides by making the body break down fat-carrying particles more quickly.

Warum es wichtig ist

They reliably improve the numbers. Whether they prevent heart attacks is much less clear, and most trials have been disappointing except possibly in people with very high triglycerides and low HDL.

Definition

The physiological process by which the body dissolves blood clots through the enzyme plasmin; Lp(a) impairs this process by competing with plasminogen for fibrin-binding sites, reducing clot clearance and increasing the risk of an occlusive cardiac event.

Warum es wichtig ist

Understanding fibrinolysis clarifies the second major way Lp(a) raises heart attack risk, beyond its role in plaque formation.

Definition

Ein Protein, das den Abbau von Fibrin katalysiert und Blutgerinnsel auflöst; die fibrinolytische Aktivität unterscheidet sich von der Plaque-Entfernung, da arterieller Plaque in der Gefäßwand eingebettet ist, anstatt im Blutkreislauf zu zirkulieren.

Warum es wichtig ist

Knowing the difference between clot dissolution and plaque regression is essential for evaluating any 'artery-clearing' supplement claim.

Definition

Die Standardeinheit zur Messung der gerinnungsauflösenden Aktivität von Nattokinase-Nahrungsergänzungsmitteln; 2.000 FU pro Tag ist die Dosis, die auf den meisten kommerziellen Flaschen zu finden ist und die in der NAPS-Studie getestet wurde.

Warum es wichtig ist

Supplement labels express nattokinase potency in FU rather than milligrams, so recognizing this unit is necessary to compare products and study doses.

Definition

A fibroatheroma is an intermediate-to-advanced atherosclerotic lesion defined by the presence of a true necrotic core beneath a fibrous cap; it represents progression beyond the fatty streak and pathologic intimal thickening stages toward the plaque architecture associated with clinical events.

Warum es wichtig ist

Recognizing this stage in the lesion progression helps explain how decades of lipid retention and inflammation eventually create the plaques that cause heart attacks.

Definition

Non-contractile fibrous tissue that replaces dead heart muscle after a myocardial infarction; because it lacks the electrical and mechanical properties of normal myocardium, it permanently impairs pumping function in the affected region.

Warum es wichtig ist

Myocardial fibrotic scarring illustrates why even optimal secondary prevention cannot fully restore heart function after a heart attack, anchoring the article's discussion of biological inertia.

Definition

Die fibröse Kappe ist die zähe Gewebeschicht, die eine Plaque bedeckt und ihren fettigen Kern vom Blutstrom trennt.

Warum es wichtig ist

Think of it as a lid. A thick lid holds. A thin one can tear, and when it does, a clot forms on the spot and a heart attack follows. Much of what cholesterol medicine does is make that lid thicker.

Definition

Fibrous cap thickness is the measured depth of the protective fibrous layer that separates a plaque's lipid core from the flowing blood; a thin fibrous cap is a hallmark of a vulnerable plaque at high risk of rupturing and triggering a heart attack.

Warum es wichtig ist

Cap thickness tells you not just how much plaque is present but how dangerous it is — a thin cap over a large lipid pool is the anatomy of a heart attack waiting to happen.

Definition

The Fick principle states that maximal oxygen consumption equals cardiac output multiplied by the arteriovenous oxygen content difference; it provides the mathematical framework for separating how much of an athlete's aerobic decline is due to a weakening heart pump versus reduced oxygen extraction by the muscles.

Warum es wichtig ist

Understanding this equation shows why both heart-pump capacity and muscle oxygen use must be maintained to preserve endurance performance with age.

Definition

An elite professional cyclist who holds the UCI Hour Record for able-bodied men, representing the gold-standard benchmark against which amateur and para-athlete hour record performances are contextualised.

Warum es wichtig ist

Comparing elite and masters or para performances illustrates the wide spectrum of cardiovascular and aerobic capacity in competitive cycling.

Definition

A side-branch artery that arises from the Left Anterior Descending (LAD) coronary artery and supplies blood to a portion of the left ventricular wall; in the Megdal study, the origin of the first diagonal branch showed the most dramatic regression—from severe stenosis (60–75%) in 2014 to a fully patent state in 2018.

Warum es wichtig ist

This vessel is the single most striking example of reversal in the study, illustrating how complete healing of a dangerous blockage is possible.

Definition

A biological family member who shares approximately 50 percent of an individual's genetic material, specifically parents, siblings, and children; cardiac events in first-degree relatives carry substantially more inherited risk signal than events in more distant relatives.

Warum es wichtig ist

Whether the affected family member is a parent or sibling versus a grandparent or cousin changes how strongly that history should influence your own cardiac risk assessment.

Definition

Die flussvermittelte Dilatation ist eine nicht-invasive Ultraschallmessung, die angibt, wie stark sich eine Leitungsarterie – typischerweise die Arteria brachialis – als Reaktion auf einen erhöhten Blutfluss erweitert, und dient als Marker für die endotheliale Stickstoffmonoxid-Signalübertragung und die endotheliale Funktion.

Warum es wichtig ist

It is one of the key measures used in vascular intervention studies to assess whether diet or drugs improve the health of the artery's inner lining.

Definition

FMO3 is a liver enzyme that converts the gut-derived gas TMA into TMAO; its activity is suppressed by insulin in healthy individuals but rises substantially when hepatic insulin resistance is present. The article frames FMO3 as a metabolic hub linking gut microbiome activity, liver function, and circulating TMAO levels.

Warum es wichtig ist

FMO3 activity explains why people with metabolic disease have higher TMAO even without eating more red meat.

Definition

A foam cell is an immune cell that has eaten so much trapped cholesterol that it swells up and looks foamy under a microscope.

Warum es wichtig ist

These cells came to help, then got stuck and died where they sat. Piles of dead foam cells form the greasy center of a plaque. They are the reason plaque is as much an immune problem as a fat problem.

Definition

The food matrix refers to the physical and chemical structure of a whole food—cell walls, fiber, protein networks—that surrounds and interacts with its nutrients; fats consumed within an intact food matrix, such as whole almonds versus almond oil, are absorbed more slowly and less completely than the same fats in extracted, purified form.

Warum es wichtig ist

It explains why eating nuts and avocados may have different metabolic effects than drizzling the equivalent amount of oil, and is central to the article's recommendation to get more fat from whole foods.

Definition

Eine Gründerpopulation ist eine Gruppe, die von einer kleinen Anzahl gemeinsamer Vorfahren abstammt, was zu einer verringerten genetischen Vielfalt und einer erhöhten Häufigkeit bestimmter seltenen Varianten führt; in der kardiovaskulären Genetik wurden Gründerpopulationen wie bestimmte isländische oder finnische Kohorten genutzt, um kardioprotektive Varianten zu entdecken, die zu selten sind, um in heterogenen globalen Stichproben effizient nachgewiesen zu werden.

Warum es wichtig ist

Studying isolated communities with shared ancestry can reveal rare genetic protections against heart disease far more efficiently than studying the general population.

Definition

A founder variant is a gene mutation that originated in a single ancestor and has reached an unusually high frequency in a genetically isolated population — such as the APOB R3500Q variant in the Old Order Amish — making that community a natural study group for understanding the long-term effects of the mutation.

Warum es wichtig ist

Founder populations allow scientists to study the effect of a single genetic change across many individuals who share similar lifestyles, providing clearer evidence about lifelong cholesterol exposure and heart disease.

Definition

FOURIER untersuchte Evolocumab, einen PCSK9-Inhibitor, bei Patienten mit bereits bestehender kardiovaskulärer Erkrankung, die Statine einnahmen.

Warum es wichtig ist

It drove LDL down to around 30 mg/dL and still reduced events, with no sign of a floor below which lowering stopped helping. It largely settled the question of whether very low LDL is safe.

Definition

Die FOURIER-Studie untersuchte den PCSK9-Inhibitor Evolocumab zusätzlich zu einer Statintherapie und zeigte, dass eine aggressive Senkung von ApoB-haltigen Partikeln kardiovaskuläre Ereignisse reduzierte; die Analyse zeigte zudem, dass Patienten, die sehr niedrige LDL-C-Werte erreichten, aber ein hohes hs-CRP behielten, dennoch einem erhöhten Residualrisiko ausgesetzt waren, was das Dual-Risk-Modell der Atherogenese stützt.

Warum es wichtig ist

FOURIER showed that even ultra-low cholesterol does not fully protect you if inflammation remains high—both targets matter.

Definition

Die offene Verlängerungsstudie der FOURIER-Studie, die Patienten untersuchte, die sieben oder mehr Jahre lang mit Evolocumab behandelt wurden, und eine anhaltende kognitive Stabilität selbst bei denjenigen feststellte, deren LDL-C-Wert unter 20 mg/dL lag.

Warum es wichtig ist

Long-term extension data are critical for ruling out slow-developing harms that a shorter trial might miss.

Definition

Die fraktionelle Flussreserve misst den Druckabfall über eine Verengung, um herauszufinden, ob sie den Blutfluss tatsächlich einschränkt.

Warum es wichtig ist

Eyeballing an angiogram is unreliable. A lesion that looks tight may pass plenty of blood, and stenting one that does not need it provides no benefit. This test decides which narrowings are worth treating.

Definition

Die Framingham-Herzstudie begann 1948 in einer Stadt in Massachusetts und hat inzwischen drei Generationen von Familien begleitet.

Warum es wichtig ist

It gave us the phrase "risk factor" and identified cholesterol, blood pressure, and smoking as the drivers of heart disease. Nearly every risk calculator descends from it.

Definition

The Framingham Offspring Cohort is the second-generation study of the Framingham Heart Study, enrolling the adult children of the original participants; it has provided longitudinal data linking decades of hyperlipidemia exposure in young adulthood to later coronary heart disease risk, independent of lipid levels at midlife.

Warum es wichtig ist

Its multi-decade follow-up makes it one of the few datasets capable of testing whether early exposure leaves a lasting cardiovascular imprint.

Definition

The Framingham Risk Score is a specific ten-year heart-attack-risk calculator built from the Framingham Heart Study's decades of data — the original tool that turned "risk factors" into a number.

Warum es wichtig ist

It's still widely cited, but it and its successors were built on older, less diverse populations, so they consistently underestimate risk in groups they weren't trained on — including highly fit masters athletes with real plaque burden.

Definition

The Frank-Starling mechanism is the heart's intrinsic ability to increase the force of contraction when more blood fills the ventricle during diastole; master athletes exploit this by developing larger, more compliant ventricles that can pump greater stroke volumes even as maximum heart rate falls.

Warum es wichtig ist

It explains how well-trained older athletes partially compensate for a lower maximum heart rate by squeezing more blood out with each beat.

Definition

Free fatty acids are fat molecules travelling loose in the blood after being released from fat stores.

Warum es wichtig ist

Visceral fat dumps them straight into the vein feeding the liver. The liver responds by making more triglycerides and more ApoB particles — the mechanical link between belly fat and a bad lipid panel.

Definition

The free hormone hypothesis is the principle that only the protein-unbound fraction of a hormone is able to cross cell membranes and exert biological effects, making the free (and loosely albumin-bound) fraction the physiologically relevant measure rather than total circulating concentration.

Warum es wichtig ist

This concept underlies why doctors are increasingly urged to measure bioavailable rather than total testosterone.

Definition

Free testosterone is the small fraction (roughly 1–4% of total) that circulates unbound to any protein and can diffuse directly across cell membranes to activate the intracellular androgen receptor.

Warum es wichtig ist

It is the most immediately active form of testosterone and a key component of bioavailable testosterone measurement.

Definition

The Future Revascularization Evaluation in Patients with Diabetes Mellitus trial randomized 1,900 diabetic patients with multivessel coronary artery disease to PCI or CABG, finding that bypass surgery significantly reduced death and heart attack rates compared with stenting over up to 13 years.

Warum es wichtig ist

It is the key evidence base for recommending bypass surgery over stenting in patients who have both diabetes and multiple blocked arteries.

Definition

The French Paradox is the observation that France had relatively low coronary heart disease mortality in the 1980s and 1990s despite high saturated fat consumption; analyses have attributed this apparent paradox to a time-lag in France's adoption of high-fat diets compared with other Western nations, systematic under-certification of CHD deaths by French physicians, and the cumulative nature of a…

Warum es wichtig ist

The French Paradox has long been used to question the diet-heart link, so understanding why it is a statistical artifact rather than a genuine exception is important for evaluating nutrition claims.

Definition

A widely used mathematical formula that estimates LDL cholesterol from total cholesterol, HDL cholesterol, and triglycerides rather than measuring it directly; it becomes unreliable when triglycerides are elevated or blood is drawn in a non-fasting state, which is one reason ApoB measurement is considered more accurate in certain patients.

Warum es wichtig ist

Understanding this limitation explains why a 'normal' LDL-C result can still miss meaningful cardiovascular risk.

Definition

The effective gravitational load experienced by a rider when centripetal acceleration through a steeply banked curve adds to normal body weight; on a 40-degree banked track the combined force can approach twice the rider's resting body weight, increasing cardiovascular and musculoskeletal demand.

Warum es wichtig ist

Elevated mechanical load during exercise directly increases cardiac workload and oxygen demand.

Definition

Gastrointestinal hemorrhage is bleeding within the digestive tract, most commonly in the stomach or upper intestine; it is the most frequent serious bleeding complication of long-term aspirin use and often tips the benefit–risk balance against aspirin in primary prevention.

Warum es wichtig ist

It is the main measurable harm seen in large primary-prevention aspirin trials, directly competing with the cardiovascular events the drug is meant to prevent.

Definition

A multiprotein complex that acts as a positive regulator of mTORC1 by transmitting leucine availability signals from Sestrin2 to the Rag GTPases, which then recruit mTORC1 to the lysosomal surface for activation.

Warum es wichtig ist

GATOR2 is part of the precise molecular machinery that translates the leucine content of a meal into a muscle-building signal, relevant to understanding why protein quality matters in aging.

Definition

The gene dosing effect refers to the amplified probability of carrying a pathogenic cardiac variant when both parents have experienced early cardiac events; having two affected first-degree parents roughly doubles the inherited risk signal compared with one, raising the likelihood of a causative inherited mutation substantially.

Warum es wichtig ist

It explains why the app treats two-parent cardiac histories as categorically more alarming than single-parent histories.

Definition

A gene variant is a small difference in your DNA compared with most other people.

Warum es wichtig ist

Some variants raise cholesterol, some lower it, and some barely matter. Studying people who were born with naturally low cholesterol has been one of the most powerful ways to prove that lowering it actually prevents heart attacks.

Definition

Genetik ist die Lehre davon, was man von seinen Eltern erbt.

Warum es wichtig ist

Your genes strongly influence your cholesterol, blood pressure, and how early plaque starts forming. What they do not do is seal your fate. Genes set your starting point and how fast the meter runs; what you do about it still changes the outcome.

Definition

A genome-wide association study (GWAS) scans hundreds of thousands to millions of genetic variants across the entire human genome to identify positions statistically associated with a trait or disease; in cardiovascular research, GWAS has identified common variants near genes such as HMGCR and NPC1L1 that implicate therapeutic targets even when each variant's individual effect is small.

Warum es wichtig ist

GWAS is how researchers discovered most of the genetic links between specific proteins and heart disease risk.

Definition

Gestational diabetes is high blood sugar that appears during pregnancy and usually resolves after delivery.

Warum es wichtig ist

Resolving is not the end of it. It signals a metabolism that struggles under load, and it strongly predicts later type 2 diabetes and cardiovascular disease.

Definition

Ghrelin is a hormone produced primarily in the stomach that stimulates appetite and promotes fat storage; sleep deprivation raises ghrelin levels while lowering leptin, creating a hormonal environment that increases caloric intake and encourages fat accumulation in visceral depots.

Warum es wichtig ist

Understanding ghrelin's role explains the biological mechanism linking poor sleep to weight gain and belly fat.

Definition

GLAGOV fügte der Statintherapie einen PCSK9-Inhibitor hinzu und maß die koronare Plaque vor und nach der Behandlung mittels intravaskulärem Ultraschall.

Warum es wichtig ist

Plaque shrank, and it shrank even in patients whose starting LDL was already considered good. It is a key piece of evidence that lower is better for reversing disease, not just slowing it.

Definition

The Glagov effect (compensatory or outward remodeling) is the tendency of an artery to expand its outer diameter as plaque accumulates within the wall, preserving the inner lumen size and blood flow until plaque burden becomes very large; this means significant atherosclerosis can be present without causing measurable narrowing on a standard angiogram.

Warum es wichtig ist

The article uses this phenomenon to explain why trained athletes may feel perfectly well and still set personal records despite harboring substantial hidden coronary plaque.

Definition

The Glagov phenomenon (also called compensatory or outward remodeling) is the tendency of an arterial wall to expand outward as atherosclerotic plaque accumulates, thereby preserving the inner lumen diameter until plaque burden becomes very large. Because lumen size stays normal during this compensatory phase, standard stress tests and angiograms can appear normal even in the presence of substant…

Warum es wichtig ist

This explains how a person can feel completely well and pass a stress test while carrying significant hidden arterial disease.

Definition

Glomerular filtration is the process by which the kidney's glomeruli — tiny capillary networks — filter waste products and small molecules, including TMAO, from the bloodstream into the urine; adequate glomerular filtration clears fish-derived TMAO within roughly 24 hours, whereas chronic kidney disease reduces this clearance and allows TMAO to accumulate.

Warum es wichtig ist

This explains why people with kidney disease are especially vulnerable to TMAO-related cardiovascular and renal harm.

Definition

GLP-1-Rezeptoragonisten sind injizierbare Medikamente – Semaglutid und Tirzepatid sind die bekanntesten –, die ein Darmhormon nachahmen, das den Appetit und den Blutzuckerspiegel steuert.

Warum es wichtig ist

They cause substantial weight loss, but the interesting finding is that they reduce heart attacks and strokes faster than the weight comes off. That suggests they are doing something to blood vessels directly, not just shrinking waistlines.

Definition

Glucocorticoid receptor resistance is a state in which cells become less responsive to cortisol's signalling, so the body's ability to regulate inflammation and other stress responses is impaired even when cortisol levels appear normal. The article lists it as one of the HPA dysregulation patterns associated with adverse cardiovascular phenotypes.

Warum es wichtig ist

It explains why measuring cortisol in the blood can miss important stress-related biology — the problem may be in how cells respond, not just how much hormone is circulating.

Definition

Glukose ist der Zucker, den Ihr Blut transportiert, um Ihre Zellen mit Energie zu versorgen.

Warum es wichtig ist

Your body keeps it in a tight range using insulin. When that system starts failing, glucose creeps up — and the damage to blood vessels begins well before the number is high enough to be called diabetes.

Definition

A carbohydrate chain or sugar molecule attached to proteins or lipids on cell surfaces; Neu5Gc is incorporated into human cell-surface glycans after red meat consumption, where it is recognized by the immune system as foreign.

Warum es wichtig ist

Glycans are the structural context in which Neu5Gc is displayed on cells, making this term essential to understanding how the immune reaction is triggered.

Definition

Die glykämische Kontrolle beschreibt, wie konstant Ihr Blutzucker über die Zeit in einem gesunden Bereich gehalten wird.

Warum es wichtig ist

Good control clearly protects the small vessels of the eyes, kidneys, and nerves. Its effect on heart attacks is weaker, which is why cholesterol and blood pressure still need treating in their own right.

Definition

Ein Maß, das sowohl die Qualität als auch die Quantität der Kohlenhydrate in einer Mahlzeit kombiniert, indem der glykämische Index eines Lebensmittels mit der darin enthaltenen Kohlenhydratmenge multipliziert wird; eine Kohlenhydratrestriktion senkt die glykämische Last und kann Blutzuckerspitzen nach den Mahlzeiten reduzieren.

Warum es wichtig ist

The article cites reduced glycemic load as one mechanism by which low-carb diets improve short-term glucose control in type 2 diabetes.

Definition

The glycocalyx is a delicate sugar-rich coating on the inner surface of blood vessels, a kind of gel layer between the blood and the cells.

Warum es wichtig ist

It acts as a first barrier and helps the vessel sense blood flow. Damage to it — from high blood sugar, inflammation, or turbulent flow — is one of the earliest events in vascular disease.

Definition

Glycoconjugates are molecules—typically proteins (glycoproteins) or lipids (glycolipids)—to which sugar chains are covalently attached; sialic acids, including Neu5Gc from dietary red meat, are added to glycoconjugates in the Golgi apparatus and then displayed on cell surfaces.

Warum es wichtig ist

The incorporation of foreign Neu5Gc into human glycoconjugates is the key step that transforms a dietary sugar into a target for immune attack on artery walls.

Definition

Glycosaminoglycans are long, negatively charged sugar chains that are major components of the arterial extracellular matrix and plaque connective tissue; in cynomolgus macaque plaques they are prominent structural constituents that persist after regression of the lipid-rich components.

Warum es wichtig ist

They are part of the fibrous scaffold that remains after treatment, explaining why plaques become denser and more stable rather than disappearing entirely.

Definition

The glymphatic system is a perivascular waste-clearance network in the brain that uses cerebrospinal fluid flowing along blood vessel walls to flush out metabolic byproducts, including amyloid-beta and tau, primarily during sleep.

Warum es wichtig ist

Arterial stiffness disrupts the pulse-driven flow that powers this system, offering a direct mechanism by which vascular disease could cause amyloid buildup in the brain.

Definition

GRADE (Grading of Recommendations, Assessment, Development and Evaluations) ist ein weit verbreiteter Rahmen zur Bewertung der Evidenzstärke hinter einem klinischen Befund, der diese basierend auf Faktoren wie Studiendesign, Verzerrungsrisiko, Konsistenz, Direktigkeit und Präzision der Ergebnisse als hoch, moderat, niedrig oder sehr niedrig einstuft.

Warum es wichtig ist

Knowing how GRADE works helps readers understand why two studies showing the 'same' result can still carry very different levels of confidence.

Definition

The gut microbiome is the enormous community of bacteria living in your intestines. There are trillions of them, and they are not passive passengers.

Warum es wichtig ist

They break down parts of your food into new compounds that enter your bloodstream. That means what you eat can affect your heart indirectly, through what your bacteria make out of it.

Definition

Eine Hazard Ratio vergleicht, wie schnell Ereignisse in zwei Gruppen auftreten. Ein Wert von 0,75 bedeutet, dass Ereignisse in der Behandlungsgruppe mit drei Vierteln der Rate auftraten.

Warum es wichtig ist

It is a relative measure, so it says nothing about how common the event was to begin with. A hazard ratio of 0.5 sounds dramatic whether the risk fell from 40 percent to 20 or from 0.4 percent to 0.2.

Definition

Human chorionic gonadotropin is a hormone that mimics luteinizing hormone (LH), stimulating testicular Leydig cells to produce testosterone; in men on testosterone replacement therapy it is used to preserve intratesticular testosterone production and maintain spermatogenesis, which exogenous testosterone alone suppresses.

Warum es wichtig ist

Men concerned about fertility or testicular atrophy during testosterone therapy need to understand the role hCG plays.

Definition

HDL, or high-density lipoprotein, is the particle often called "good cholesterol." It picks up cholesterol from tissues and carries it back to the liver.

Warum es wichtig ist

The nickname has aged badly. People with naturally high HDL are healthier, but drugs that raise HDL have repeatedly failed to prevent heart attacks. High HDL seems to be a sign of good health rather than a cause of it.

Definition

A functional measure of HDL's ability to accept cholesterol from cholesterol-laden macrophages in arterial walls and transport it to the liver for removal; emerging evidence suggests CEC predicts cardiovascular risk more accurately than the simple blood concentration of HDL cholesterol.

Warum es wichtig ist

A high HDL number on a standard test does not guarantee protection — what the HDL actually does matters more.

Definition

Healthspan is the portion of a person's life spent in good health, free from serious disease, disability, or significant functional decline, as distinguished from total lifespan, which counts all years alive regardless of health status.

Warum es wichtig ist

Focusing on healthspan rather than lifespan alone shifts the goal from simply living longer to living better for longer.

Definition

A composite research endpoint used in long-term cohort studies—such as the Nurses' Health Study—defined as surviving to older age free from major chronic diseases (including cardiovascular disease), significant cognitive decline, and functional impairment; the 2024 Nurses' Health Study analysis found higher midlife plant-protein intake to be a significant predictor of this outcome.

Warum es wichtig ist

Using 'healthy aging' as an endpoint captures cardiovascular benefit more completely than disease incidence alone, making it a stronger measure of dietary impact.

Definition

A confounding phenomenon in which moderate drinkers tend to have higher socioeconomic status, better diets, and more active lifestyles, making alcohol appear protective when it may simply be a marker for other health-promoting behaviors.

Warum es wichtig ist

It is one of the main reasons observational studies on alcohol and heart health can be misleading.

Definition

The difference between a person's biological heart age—estimated from electrocardiographic, vascular, or risk-factor models—and their chronological age; a positive gap indicates that the heart is functionally older than the calendar age and predicts higher cardiovascular risk and worse survival.

Warum es wichtig ist

Seeing a concrete gap in 'years' is shown to motivate behavior change more effectively than abstract risk percentages.

Definition

Ein Herzinfarkt tritt auf, wenn die Blutversorgung eines Teils des Herzmuskels unterbrochen wird und dieser Muskel abstirbt.

Warum es wichtig ist

The usual trigger is not a slow closing of the artery. It is a plaque cracking open, with a clot forming on top in minutes. That is why heart attacks so often strike people who felt fine the day before, and why plaques too small to cause symptoms can still kill.

Definition

A person who has been diagnosed with significant cardiac disease—such as severe atherosclerotic heart disease—and has not died from it, often implying they have managed or reversed their condition through medical treatment, lifestyle change, or both.

Warum es wichtig ist

Understanding this term helps readers recognize that cardiac diagnoses are not always fatal or permanently disabling, and that meaningful recovery is possible.

Definition

Heart failure means the heart cannot pump well enough to meet the body's needs. The name is misleading — it does not mean the heart has stopped.

Warum es wichtig ist

It causes breathlessness, swollen legs, and fatigue. Common causes include past heart attacks, long-standing high blood pressure, and valve problems.

Definition

Die Herzfrequenz ist die Anzahl der Schläge, die Ihr Herz pro Minute ausführt.

Warum es wichtig ist

A lower resting rate usually reflects better fitness — trained endurance athletes often sit in the 40s. On its own, though, resting heart rate says very little about whether you have plaque.

Definition

Heart rate variability (HRV) is the natural beat-to-beat variation in the time between heartbeats, and is used as a non-invasive measure of autonomic nervous system balance — higher variability generally reflecting greater parasympathetic (rest-and-digest) activity. It is listed in the article as one of the outcomes measured in meditation trials.

Warum es wichtig ist

HRV is frequently cited as a marker of stress resilience and cardiovascular health, so knowing what it actually measures helps you evaluate wearable-device claims.

Definition

The physiological adaptation to exercising in warm environments, including increased plasma volume, earlier onset of sweating, and reduced cardiovascular strain at a given temperature; athletes who train in cool climates lack this adaptation and experience greater heart-rate elevation and performance decline when competing in heat.

Warum es wichtig ist

Poor heat tolerance raises cardiovascular stress during exertion, which is a meaningful risk factor for older athletes and heart patients exercising in warm conditions.