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Do whatever it takes to quit smoking.

Smokers are up to six times more likely to suffer a heart attack than nonsmokers, according to the National Heart, Lung and Blood Institute. And don't fool yourself with light brands, because low-tar and low-nicotine cigarettes do nothing to lessen the risk of heart disease. One more reason to clear the smoke: between 37,000 and 40,000 people die every year from cardiovascular disease caused by other folks lighting up.