Angina or severe chest pain is the most common and significant manifestation of CAD seen as a result of stress induced pain, emotional trauma and primarily due to inadequate supply of oxygen to the heart.
CAD is a slow process that occurs due to accumulation of plaque in the arteries of the heart. Sticky substances like cholesterol, calcium deposits and waste remnants of the body cells cause plaque formation. This causes blockage or spasm in big and small blood vessels of the heart and reduces smooth blood flow in the heart.
Plaque formation generally causes breakage of the blood vessels. As body’s defense mechanism, clot formation that occurs for natural healing of the blood vessels causes heart stroke.