what is heart attack
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heart attack occurs when there is a blockage of blood flow to the heart. It often occurs from a blood clot in the coronary artery, and therefore, is a problem associated with a lack of blood circulation. If the blockage is not treated in time, the heart is deprived of oxygen-rich blood and the heart muscles begin to die.
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heart attack occours because of shock when there is shock by fear it occours heart attack
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