Disease Proof

Middle-aged women have long been advised to get active to lower their risk of breast cancer after menopause.

What's new: That starting so young pays off, too.

"This really points to the benefit of sustained physical activity from adolescence through the adult years, to get the maximum benefit," said Dr. Graham Colditz of Washington University School of Medicine in St. Louis, the study's lead author.

Researchers tracked nearly 65,000 nurses ages 24 to 42 who enrolled in a major health study. They answered detailed questionnaires about their physical activity dating back to age 12. Within six years of enrolling, 550 were found to have breast cancer before menopause. A quarter of all breast cancer is diagnosed at these younger ages, when it is typically more aggressive.

Maybe if you’re a mother or father of a young girl the two of you could get out and exercise together!