Even light drinking slightly ups breast cancer risk
Even as few as three alcoholic beverages per week may increase a woman's risk of developing breast cancer, a new study finds.
Women in the study who drank three to six glasses of wine per week were 15 percent more likely than those who did not drink to develop breast cancer, researchers found in reviewing data taken over a 28-year period.
The study adds to the growing body of evidence of a link between alcohol consumption and an increased risk of breast cancer. Drinking moderate to high amounts of alcohol has previously been linked with breast cancer risk, but the effects of consuming low amounts of alcohol had been unclear. Alcohol may be increasing breast cancer risk by altering levels of the sex hormone estrogen, the researchers said.
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