What are the warning signs of a heart attack? How do I know if my chest pain is caused by a heart attack or something else?
Heart attacks, or myocardial infarctions, occur when blood flow to the heart is cut off severely or completely by clogged arteries or blood clots. This causes a loss of oxygen to the heart and results in muscle damage or death. The warning signs of a heart attack can be sudden and intense or can start slowly and progress.