Cholesterol is a waxy, fat-like substance that your body needs. However, when you have too much cholesterol in your blood, it can build up on the walls of your arteries and form blockages. This can lead to heart disease, heart attack, and stroke.

There are two kinds of cholesterol: high-density lipoprotein (HDL) and low-density lipoprotein (LDL). HDL is also called “good” cholesterol. LDL is called “bad” cholesterol. When we talk about high cholesterol, we are talking about “bad” LDL cholesterol.

Seventy-one million American adults have high cholesterol, but only one-third of them have the condition under control.

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