A study of 250,000 Americans indicates the popular belief that a few drinks of alcohol a day protects against strokes and heart disease may not be true after all, and it instead appears that non-drinkers are simply unhealthier. The survey by the Centers for Disease Control and Prevention found that non-drinkers had more risk factors for heart disease, such as being overweight and inactive or having diabetes, than moderate drinkers, and those factors may explain the higher heart disease risk.

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