This year, more than 310,000 women and 2,800 men are estimated to be diagnosed with invasive breast cancer, according to the National Breast Cancer Awareness Foundation. Keep these risk factors in mind to make informed decisions about your health. These mutations can be inherited, which means a family history of breast cancer can be a strong indicator of your own risk. Lifestyle ChoicesFactors such as diet, physical activity, alcohol consumption and smoking have all been linked to breast cancer risk. Age & GenderThe risk for breast cancer increases with age, and women are at a significantly higher risk than men.