What is an angina?
Angina is the widely used terms for chest pain due to Heart Disease or coronary artery disease, which occurs when the heart muscles not receiving the adequate amount of blood. It occurs when blood vessels that carry blood to the heart muscle are partially occluded or narrowed .Angina may feel like chest pain radiating to left shoulder or left arm or pressure on the chest, shortness of breath, pain in the jaw, neck, back, some time associated with nausea or generalized weakness or sweating.