Heart disease remains the leading cause of mortality worldwide, yet the conventional understanding of how heart attacks develop is often misunderstood. In this discussion, veteran interventional cardiologist Dr. Pradip Jamnadas shares insights from over 35 years of clinical practice0:05 and more than 30,000 cardiac procedures. While heart disease historically afflicted adults aged 65 and older, today nearly half of cardiac patients are under 650:18, with patients as young as 28 years old suffering acute myocardial infarctions0:30.
Dr. Jamnadas explains that a heart attack is fundamentally distinct from the slow, progressive buildup of stable plaque. While stable arterial plaque narrows vessels and causes angina, only 20 percent of blocked patients experience chest pain3:12. Instead, acute heart attacks occur when an unstable inflammatory plaque—acting like a pimple inside the artery—suddenly cracks or ruptures. The flowing blood reacts to the rupture by creating a reparative thrombus that seals the vessel shut2:30. Dr. Jamnadas identifies a dangerous modern triad fueling this epidemic: accelerated plaque formation, plaque instability driven by inflammation, and hypercoagulable blood prone to clotting4:28.
When treating acute blockages, interventional cardiologists perform emergency angioplasty with stents6:05 via the wrist or groin to mechanically restore blood flow. However, Dr. Jamnadas emphasizes that stenting only addresses the mechanical emergency without treating the underlying metabolic driver. In examining young, non-diabetic cardiac patients, he discovered widespread hyperinsulinemia and visceral adiposity6:52. Insulin promotes smooth muscle proliferation, vasoconstriction, hypercoagulability, and arterial wall inflammation long before blood sugar levels rise enough to trigger a formal diabetes diagnosis.
At the cellular level, circulating glucose causes protein and tissue glycation9:35, impairing enzymes and accelerating vascular aging. The body secretes insulin to move toxic glucose into tissues, but frequent meals every few hours10:38 keep insulin continuously elevated because insulin clears far more slowly than glucose. This persistent elevation induces cellular insulin resistance11:40, prompting the pancreas to oversecrete insulin. Excess glucose is rapidly converted into harmful deep visceral fat and fatty liver12:45, creating a silent metabolic storm. By the time elevated fasting glucose indicates diabetes, patients have often endured ten years of undetected cardiovascular damage14:12, demonstrating why widespread early insulin screening is urgent.
