Chest pain is due to inadequate supply of oxygen to the heart muscles. Angina can be a precursor of heart attack. It is sensation of chest pain, pressure, squeezing, often due to ischemia of heart muscles from spasm of coronary arteries. Angina usually makes its appearance as a person reaches the age of 50 years and most often, it claims the life of person it affects. It is today one of the leading causes of deaths of people all over the world.
