Optimism may prevent heart attack

A new study published in this month's edition of the Annals of Family Medicine shows that men who believe they are at a low-risk of heart attack are 70 percent less likely than other men to die of heart disease or stroke.

Researchers say people who believe they are at high risk may take extra precautions to avoid heart disease, like keeping cholesterol and high blood pressure in check. But that fear may also drive them to "coping behaviors" like smoking and drinking that puts stress on their hearts.

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