Behaviors That Increase the Risk for Developing Breast Cancers.
Weight: Studies have found that the chance of getting breast cancer is higher in postmenopausal women who have not used menopausal hormone therapy and who are significantly overweight compared to peers who are of a healthy weight.
Smoking: Researchers at the American Cancer Society found an increased risk for breast cancer among women who smoke, especially those who started to smoke before having their first child.
Alcohol: The National Cancer Institute reports that over 100 studies document an increased risk of breast cancer associated with alcohol consumption.
Inactive Lifestyle: Women who are physically inactive throughout life may have an increased risk of breast cancer.