Monday, 23 April 2007
A study of 17,647 nurses found twice the risk of breast cancer in women who drank 22-27 drinks a week compared with those who drank one to three drinks.
The risk was greatest when drinks were consumed in a short period, reported the European Journal of Public Health.
Experts said women should try and limit the amount of alcohol they drank.
Women in the study were aged over 44, and most drank a moderate amount of alcohol.