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Heart Attack
Frequently Asked Questions
2. What causes a heart attack?
Coronary artery disease, or CAD, is the most common underlying
cause of a heart attack. Coronary arteries are the blood vessels
that bring blood and oxygen to the heart muscle. Most heart attacks
are caused by a blood clot that blocks one of the coronary
arteries. When blood cannot reach part of your heart, that area
starves for oxygen. If the blockage continues long enough, cells in
the affected area die.
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