Avoid smoking and using tobacco products. Be physically active every day. Eat a heart-healthy diet. Keep a healthy weight. Keep your blood pressure healthy. Keep your total cholesterol healthy. Keep your blood sugar healthy.
I do believe it's all of the above. Although, it might not be trouble sleeping. That might be true in some cases, but not in all.
The hospital is an important public health tool for addressing heart disease
It should be fifteen to twenty percent of north american adults