25 May 2017 --- Drinking just one glass of wine or other alcoholic drink a day increases breast cancer risk, finds a major new report by the American Institute for Cancer Research (AICR) and the World Cancer Research Fund (WCRF). The study adds support to the notion that breast cancer risk is strongly linked to lifestyle. Breast cancer is the most common cancer in US women with over 252,000 new cases estimated this year and AICR estimates that one in three breast cancer cases in the US could be prevented if women did not drink alcohol, were physically active and stayed a healthy weight.