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Although many people think of a heart attack as a painful, sometimes fatal event, there are some heart attacks that go entirely unnoticed.
Some people may have had heart attacks without knowing it, studies show.
Undiagnosed, or "silent," heart attacks affect nearly 200,000 people in the United States annually. As many as 40 to 60 percent of all heart attacks are unrecognized, studies show.
By definition, a heart attack usually happens when a clot gets in the way of blood flow from a coronary artery to the heart. This may cause symptoms such as severe chest pain, shortness of breath, fainting and nausea. Anyone who believes that he or she is having a heart attack should seek emergency medical attention.
But sometimes a heart attack is not painful, or the person experiencing it does not recognize the symptoms as heart-related, so he or she does not go to a hospital for treatment.
Some people may have had heart attacks without knowing it, studies show.
Undiagnosed, or "silent," heart attacks affect nearly 200,000 people in the United States annually. As many as 40 to 60 percent of all heart attacks are unrecognized, studies show.
By definition, a heart attack usually happens when a clot gets in the way of blood flow from a coronary artery to the heart. This may cause symptoms such as severe chest pain, shortness of breath, fainting and nausea. Anyone who believes that he or she is having a heart attack should seek emergency medical attention.
But sometimes a heart attack is not painful, or the person experiencing it does not recognize the symptoms as heart-related, so he or she does not go to a hospital for treatment.
'Silent' heart attacks more common than thought, study says - CNN.com
Although many people think of a heart attack as a painful, sometimes fatal event, there are some heart attacks that go entirely unnoticed.
www.cnn.com
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