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 not true, according to the results of a major genetic study.
The research, which used data from a 160,000-strong cohort of Chinese adults, many of whom are unable to drink alcohol due to genetic intolerance, found that people who drink moderately — consuming 10 to 20 grams of alcohol a day — raise their risk of stroke by 10 to 15 percent.
For heavy drinkers, consuming four or more drinks a day, blood pressure rises significantly and the risk of stroke increases by around 35 percent, the study found.
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