According to The National Breast Cancer Foundation, one in 8 women either has – or will develop breast cancer in her lifetime. But the men aren’t safe, either. 1,700 men are diagnosed with breast cancer each year, too. So, we’re going to help lower your odds of developing the disease. Here’s what you should be doing:

First and foremost: Exercise. Research shows that it’s the number-one thing you can do to lower your risk. A study from the National Cancer Institute found that women who average 3 hours of exercise per week, over their lifetime, have a 23% lower risk of developing breast cancer. So, why is it a magic formula? Because exercise lowers estrogen levels – and estrogen is a well-known factor in cancerous changes in the breast.

Tip #2: Watch what you drink. Alcohol is a double-edged sword… While it’s been linked to a lower risk of heart disease, it increases your risk of breast cancer. One study found that each daily glass of alcohol raises a woman’s risk by up to 12%.

And lastly: Get more vitamin D.

One study found that women who got the most calcium and Vitamin D had a35% lower risk than those who got the least. Unfortunately, nearly 75% of us have inadequate levels. Many experts now believe that taking 1,000 IUs of Vitamin D daily is best.