That nagging pain in your chest might not be something to ignore. It is estimated that almost 6.4 crore Indians will suffer from coronary artery disease by 2015. Angina or 'angina pectoris' (Latin for squeezing of the chest) is chest pain discomfort or tightness that occurs when an area of the heart muscle receives less blood and oxygen. It is not a disease itself but rather a symptom of Coronary Artery Disease (CAD). CAD is the most common type of heart disease. Angina is usually the result of plaque build-up in the coronary arteries also called 'atherosclerosis'. Narrow arteries increase