Breast cancer is one of the most commonly diagnosed cancers among women. 1 in 8 women will develop the disease in her lifetime. There’s no way to completely prevent it, but these 5 tips may help reduce your risk. Studies show that women who exercise just 2 1/2 hours each week cut their risk by as much as 30 percent. A brisk 30-minute walk, 5 days a week is a good start. If your BMI is more than 25, especially after menopause, you’re at a higher risk. Losing just 5 to 10 percent of excess weight can improve your health. Try for 5 or more servings of fresh fruits and vegetables a day, along with whole grains and fiber. Limit your intake of red meat. Women who have just 3 alcoholic drinks per week have a 15 percent higher risk of breast cancer. And don’t smoke – or if you do, make a plan to quit. While a mammogram can’t prevent breast cancer, it can catch it early when it’s most curable. Start screening at age 40, or talk to your doctor about a time that’s right for you.