One alcohol drink a day (small glass wine or beer-10 gms alcohol) increases pre-menopausal breast cancer risk by 5 percent and post-menopausal breast cancer risk by 9 percent according to new research reported by the American Institute for Cancer Research and the World Cancer Research Fund. Researchers also found that vigorous exercise such as running or fast bicycling decreases the risk of both pre and post-menopausal breast cancer ,They also confirmed earlier findings that moderate exercises decrease the risk of post-menopausal breast cancer that is the most comm,on type of breast cancer. Researchers said “With this comprehensive and up to date report  the evidence is clear, Having as physically active lifestyle, maintaining a healthy weight throughout life and limiting alcohol–these are all steps women can take to lower their risk.”

This report analyzed 119 studies, including data on 12 million women and 260,000 cases of breast cancer. The study found the equivalent of 10 gm of alcohol a day increased the risk and the standard drink is 14 gm of alcohol. specifics of exercise and cancer risk found follow: pre-menopausal women who were the most active had a 17 percent lower risk and post-menopausal women had a 10 percent lower risk of developing breast cancer compared to those who were the least active. Moderate activity such as walking and gardening gave a 13 percent lower risk when compared to the most vs least active women for developing cancer.

Other findings included: being overweight or obese increases the risk of post-menopausal breast cancer; women who breast fed were are lower risk of breast cancer; and the great adult weight gain  the greater the post-menopausal breast cancer risk.  There was limited evidence for the following findings that must be repeated, 1) non-starchy vegetables lower the risk for estrogen-receptor (ER) negative breast cancer that is a less common but a more challenging type to treat. ) 2) dairy, diets high in calcium and foods containing carotenoids seemed to lower risk of breast cancer. Carrots, apricots, spinach and kale are all foods high in carotenoids and should be studied for their health value;