There's evidence that people who respond rigidly to anger-provoking events are likely to wind up with significantly elevated levels of heart-damaging cholesterol.

High cholesterol contributes to heart disease, which kills more Americans than all cancers combined.

Scientists have learned that other substances may give you and your doctor new clues about your heart disease risk. And that's good news. Coronary heart disease, in which fatty deposits build up in your arteries, is the nation's top killer.

Triglycerides are the most common type of fat in your body. Most of your body's fat is stored as triglycerides.

According to the American Heart Association, there are five main types of cholesterol-lowering medications.