how heart attack happens
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A heart attack happens when something blocks the blood flow to your heart so it can’t get the oxygen it needs.
More than a million Americans have heart attacks each year. Heart attacks are also called myocardial infarctions (MI). "Myo" means muscle, "cardial" refers to the heart, and "infarction" means death of tissue because of a lack of blood supply. This tissue death can cause lasting damage to your heart muscle..
More than a million Americans have heart attacks each year. Heart attacks are also called myocardial infarctions (MI). "Myo" means muscle, "cardial" refers to the heart, and "infarction" means death of tissue because of a lack of blood supply. This tissue death can cause lasting damage to your heart muscle..
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A heart attack occurs when an artery supplying your heart with blood and oxygen becomes blocked. Fatty deposits build up over time, forming plaques in your heart's arteries. If a plaque ruptures, a blood clot can form and block your arteries, causing a heart attack.
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Answer:
A heart attack occurs when the flow of blood to the heart is blocked. The blockage is most often a buildup of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries).
Sometimes, a plaque can rupture and form a clot that blocks blood flow. The interrupted blood flow can damage or destroy part of the heart muscle.
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