WASHINGTON – Young women who drink alcohol every day may be raising significantly their risk of breast cancer, according to new U.S. research.
Each alcoholic drink a woman takes per day, on average, from when her menstrual periods start until her first full-term pregnancy increases her lifetime risk of breast cancer by 13 percent, said the study in the Journal of the National Cancer Institute. Each additional daily drink raised the risk of proliferative benign breast disease by 15 percent. The presence of these noncancerous lesions also contributes to raising breast cancer risk.
The findings were based on a survey of 91,005 mothers in a major U.S. health study from 1989 to 2009. Previous research has found a link between drinking alcohol in adulthood and higher breast cancer risk.