Heart attack (myocardial infarction)

A heart attack, or myocardial infarction, occurs when blood flow to a part of the heart muscle is blocked, usually due to a blood clot forming in a narrowed coronary artery. This interruption deprives the heart tissue of oxygen, causing damage or death of the heart muscle if not quickly treated. Common symptoms include chest pain, shortness of breath, and sweating. Prompt medical attention is critical to restore blood flow and limit heart damage. Prevention involves managing risks like high blood pressure, cholesterol, smoking, and a healthy lifestyle.