2 drinks a day may cause heart trouble for women

Moderate alcohol can improve heart health but a new study suggests just two drinks a day could have the opposite effect on women.

Researchers from Brigham and Women's Hospital followed nearly 35,000 middle-aged women for more than 12 years. They found that those who drank two or more alcoholic beverages a day had a 60 percent greater risk for developing a heart rhythm disturbance. It's a condition known as atrial fibrillation and it can raise the odds of stroke.

The report in the Journal of the American Heart Association did find that less than two drinks a day did not cause heart problems.

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