"I Run, Eat Clean, and Have 90/60 BP": Cardiologist's Viral Explanation of Why Fit People Still Get Blocked Arteries

A blood pressure reading of 90/60 mmHg, a consistent daily workout regimen, a spotless whole-foods diet free of greasy takeout, and a lean body weight: for most health-conscious individuals, this combination is viewed as a gold-standard insurance policy against cardiovascular disease.

So when a 61-year-old female runner took to Quora to reveal that a routine cardiac diagnostic uncovered a significant blockage in the apex of her coronary artery, the question sent shockwaves through health and fitness communities online:

“How can I have a clogged artery? I have low blood pressure: 90/60. I exercise, I eat healthy, avoid greasy foods, and I am a normal-weight 61-year-old woman. I was told I have a blocked artery in the apex. How is this possible with my lifestyle?”

The dilemma quickly went viral, prompting Dr. Punya Pratap Kujur, Consultant Cardiologist at Gleneagles Hospital in Mumbai, to step in with a clinical, eye-opening breakdown of how cardiovascular biology actually works.

Why Healthy Habits Do Not Equal Total Immunity

According to Dr. Kujur, the widespread shock surrounding the runner’s diagnosis stems from a fundamental misunderstanding of atherosclerosis:

• Hydraulic Pressure vs. Endothelial Biology: Blood pressure measures the outward mechanical force exerted by blood on arterial walls. A reading of 90/60 indicates that the heart is pumping without undue strain. However, plaque formation is an inflammatory biochemical process occurring inside the inner lining (endothelium) of the artery, driven by circulating lipid particles, micro-inflammation, and cellular damage that blood pressure cuffs cannot detect.
• The “Hidden” Genetic Triggers: Up to 50% of cardiovascular risk is determined by genetics. Factors like Lipoprotein(a)—a sticky, genetically inherited cholesterol variant that promotes clotting and arterial calcification—are virtually impervious to diet and exercise. If someone inherits a tendency for dense LDL particles, plaque will accumulate regardless of clean eating.
• The Natural Process of Aging: Even with optimal health choices, decades of continuous blood flow produce cumulative wear and tear on vascular walls, providing attachment sites where microscopic lipids can slowly calcify over sixty years.

Did Her Healthy Lifestyle “Fail”? Exactly the Opposite

The most critical takeaway shared by cardiologists is that the runner’s healthy lifestyle did not fail her—it almost certainly saved her life:

1. Plaque Stabilization: In sedentary individuals who eat high-inflammatory diets, soft lipid plaques are unstable and prone to sudden rupture, causing acute myocardial infarction (heart attack). Exercise and antioxidant-rich nutrition stabilize the fibrous cap over plaque, keeping it firm and preventing sudden rupture.
2. Collateral Circulation: Regular aerobic workouts encourage the heart to build a natural vascular network called “collateral vessels”—microscopic detour channels that reroute oxygenated blood around a narrowing artery.
3. Preserving Ejection Fraction: Thanks to her endurance habits, her heart muscle remained strong and well-conditioned, allowing her to undergo non-invasive evaluation without clinical distress.

The viral exchange has sparked a renewed focus on comprehensive cardiac screening, with medical experts urging adults over 40 to evaluate family medical histories, test for advanced lipid panels like ApoB and Lp(a), and undergo coronary calcium scoring rather than relying solely on bathroom scales and blood pressure monitors.