What can cause coronary heart disease?

Unhappy hearts. Caused by bad cholesterol and inflammation. Both can clog the pipes to your heart. How to keep your heart (and elsewhere) happy: eat well (whole grains, fruits and veggies). Get moving 30-60 minutes every day. Don't smoke. Make friends. Smile.
Many. But commonly associated with high cholesterol, high lipids, hypertension, diabetes and genetic predisposition.