If you think heart disease is a disease of the middle aged, think again. Experts recommend that cholesterol screening should begin as early as 20 years of age because it is a key indicator of heart-attack risk, and should be rechecked at least once every five years. Atherosclerosis begins early, says Dr. Anand Rohatgi, cardiologist with UT Southwestern Medical Center's program in preventive cardiology. Even young adults and teens can show evidence of atherosclrosis, or hardening of the arteries...

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