Light to moderate drinking has long been heralded as heart-healthy, but evidence for this link is weak. New research finds that people drink less if they have a particular genetic variant that speeds the rate at which their bodies break down alcohol. They also have a lower risk of heart disease. But like other research on alcohol, this finding may be clouded by confounding—an association between two things that is caused by something else. Drinking in moderation (one drink per day for women and two for men) is still considered safe, but don’t start drinking to help your heart.
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