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Heart Attacks Heart attacks are the leading cause of death in the United States. Heart attacks are caused by blockage in the arteries that carry blood to parts of the heart. When an artery gets blocked, the part of the heart that the artery is going to gets none of the blood and oxygen it needs, and that part of the heart dies. If a small part of the heart dies, the heart can remain …

…a heart attack, because exercising burns off fat, and they also have a slower heart rate. Some people have to have heart surgery, called bypass surgery. Bypass surgery is the process of widening or replacing arteries going to the heart. Many people who get this surgery would have died of a heart attack without it. You should get regular checkups to prevent a heart attack. You should also keep your weight down and exercise regularly.