Cholesterol is a waxy, fatlike substance that is naturally present in cell walls or membranes everywhere in the body. Your body uses cholesterol to produce many hormones, vitamin D, and the bile acids that help to digest fat.
If you have too much cholesterol in your bloodstream, the excess may be deposited in the arteries of the heart, which could lead to heart disease.
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Cholesterol Guidelines
Think you know all there is to know about cholesterol? Learn the cholesterol guidelines: the good, bad, and that other one. See more WebMD Videos »
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