A heart attack occurs when the blood supply to a part of the heart muscle is suddenly blocked, often due to a clot in th

A heart attack, medically known as myocardial infarction, occurs when the blood flow to a part of the heart is blocked,

A heart attack occurs when blood flow to a part of the heart is suddenly blocked, usually due to a clot forming in a nar

A heart attack occurs when the blood flow to a part of the heart is suddenly blocked, usually due to a clot forming in a