A study suggests a new way that exercise can help ward off heart disease. It says even modest exercise can make cholesterol less damaging to the arteries.
The study says exercise alters the number and size of the particles that carry cholesterol through the bloodstream.
People who exercise develop bigger particles, even if the total amount of cholesterol stays the same. Bigger is better -- larger, fluffier particles do less damage to arteries than smaller, harder ones.
The lead researcher is at Duke University. The study is in the New England Journal of Medicine.