Breathing easy after breathing hard

Not that they know too much about such things at Harvard, but researchers there were intrigued by the commonly held belief that sex can bring on a heart attack. So the scientists studied some 800 heart attack survivors (who, we presume, had their attacks you know when). What are the odds? Pretty much in your favor: the chance of sex causing a heart attack was about two in a million, even if you had a history of a heart attack in the past. The real good news is that the risk of a heart attack brought on by sex dropped as the amount of (other) exercise increased. Push ups before, instead of that cocktail?

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