Myocardial infarction (MI), better known as a heart attack, is a serious condition where a decrease or absence of blood supply to part of the heart causes damage to the heart muscle. The causes of myocardial infarction, or a heart attack, all involve some kind of blockage of one or more of the coronary arteries. The coronary arteries provide the heart with oxygenated blood, and if they become blocked, the heart will become oxygen-starved, killing heart tissue and causing a heart attack.

Heartburn