Definition: Cholesterol is a fatty substance found in cells in the body and in food. Too much cholesterol in the body can lead to clogged arteries and serious health issues.
What is Cholesterol?
By Jennifer R. Scott, About.com
Updated: August 10, 2008
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
Explore Weight Loss
Must Reads
About.com Special Features
Do I Have Allergies?
Are your symptoms merely irritating, or could they be a sign of allergies? More >
Preventing Headaches
The best way to treat a headache is to prevent it. Learn how. More >
Also from About.com:
©2009 About.com, a part of The New York Times Company.
All rights reserved.