How Cholesterol Causes Heart Disease

Watch Time 10 Min

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Key Takeaways

Cholesterol is essential for building cells, hormones, vitamin D, and bile acids.

LDL cholesterol contributes to plaque formation inside artery walls, increasing cardiovascular risk.

Inflammation plays a crucial role in making plaques unstable and prone to rupture.

High cholesterol is a risk factor—not a disease or a direct cause of symptoms.

Regular lipid testing helps identify risk early, long before symptoms develop.

QUICK SUMMARY
Cholesterol is essential for life, but when LDL (“bad cholesterol”) remains elevated over many years, it can damage the arteries that supply blood to your heart and brain. Cholesterol particles enter the artery wall, triggering inflammation and the gradual formation of fatty plaques—a process known as atherosclerosis. As these plaques grow, they narrow the arteries and reduce blood flow. The greatest danger occurs when an inflamed plaque ruptures, causing a blood clot that suddenly blocks an artery and leads to a heart attack or stroke. Importantly, high cholesterol itself does not cause symptoms; it quietly increases your long-term cardiovascular risk. Understanding how cholesterol, inflammation, genetics, and lifestyle work together empowers you to take early preventive action and protect your heart for years to come.

Downloadable Resource

Understanding Cholesterol & Heart Disease Guide

8 Pages-PDF

Learn how cholesterol affects your arteries, understand your lipid profile, discover your cardiovascular risk factors, and explore practical lifestyle strategies to protect your heart.