Most Common Symptoms Of A Heart Attack

A heart attack is a medical emergency where the flow of blood to the muscle tissues of the heart becomes suddenly obstructed. Without a blood supply, the muscle tissues do not receive oxygen. The muscle tissues begin to die of oxygen deprivation if blood flow is not restored within several minutes. When these tissues die, the heart muscle is unable to continue beating.

This medical emergency is commonly caused by cardiovascular disease, where the arteries that supply the heart muscle with blood become narrowed by plaque. A heart attack may also be the result of coronary artery spasm.