Genetic study knocks 'healthy' moderate drinking

Blood pressure and stroke risk rise steadily the more alcohol people drink, and previous claims that one or two drinks a day might protect against stroke are likely incorrect, according to the results of a major genetic study.

Oxford University and Chinese researchers used the facts that many Chinese people have genetic variants that make them alcohol intolerant, and that men, but few women, drink alcohol in China, to do a genetic study they say has implications for everyone,