About high blood cholesterol
Cholesterol and Your Body
Cholesterol is a waxy, fat-like substance found in your body and many foods. Your body needs it to work properly and makes all that you need. Too much cholesterol can accumulate depending on the kind of foods you eat and the rate at which your body breaks it down.
Extra cholesterol can build up in your arteries. Over time, cholesterol deposits, called plaque, can narrow your arteries and allow less blood to pass through.
When plaque totally blocks an artery carrying blood to the heart, a heart attack occurs. It also can happen when a deposit ruptures and causes a clot in a coronary artery. Chest pain, also called angina, is caused by plaque partially blocking a coronary artery, reducing blood flow to the heart.