heart attack.

A heart attack, or myocardial infarction, occurs when blood flow to a part of the heart muscle is blocked, usually by a blood clot. This blockage can lead to damage or death of the heart tissue. Symptoms may include chest pain, shortness of breath, and sweating. Immediate medical attention is crucial to minimize heart damage. Treatment may involve medications, procedures like angioplasty, or surgery. Lifestyle changes and medications are often recommended for long-term management.