Cholesterol, a Fat We Love to Hate
High cholesterol levels increase heart-attack risk. Here’s how doctors determine risk and decide who needs cholesterol-lowering treatment.
When LDL and HDL exist in normal proportion, they are not a health risk. But when levels of LDL or total cholesterol rise, or the amount of HDL falls, the body tends to deposit cholesterol in the arteries. Over time, this causes arteries to become narrow, which can interfere with blood flow and lead to heart attack or stroke.