[heart attack] moderate drinking reduces men's risk

I have to post this in its original form: Even as studies have consistently found an association between moderate alcohol consumption and reduced heart attack risk in men, an important question has persisted: What if the men who drank in moderation were the same individuals who maintained good eating habits, didn't smoke, exercised and watched their weight? How would you know that their reduced risk of myocardial infarction wasn't the result of one or more of these other healthy habits? Full report here.