CAD is the buildup of plaque in the arteries that supply oxygen rich blood to heart. Plaque consists of cholesterol, fatty substances, waste products, calcium, and clotting factors. High cholesterol, high BP, family history of heart disease, diabetes, smokers, men of age >45 years, postmenopausal women, overweight, physical inactivity causes plaque to accumulate gradually over years, so symptoms occur on later stage.
Treatment