Exercise is good medicine that, not only, slows down stress-related aging at the cellular level and helps to reduce a man's prostate cancer risks, and lowers a woman's chances of developing endometrial cancer by as much as 30 percent, according to a new study.

Scientists arrived at that number based on an analysis of 14 previous studies that showed how exercise lowered a woman's odds of endometrial cancer, ranging from 20-40 percent. Although one study documented how vigorous 20-minute exercise sessions five days a week cut a female patient's risk of endometrial cancer by 20 percent, researchers shied away from making any blanket recommendations about exercise intensity or duration.

Experts weren't nearly as shy, however, in warning women about the health problems associated with being sedentary. In this dose-responsive analysis, a women who devoted at least nine hours each day to sitting doubled her chances of fighting endometrial cancer during her lifetime.

With colder weather on the way, it's best for your health to get started on an exercise program sooner rather than later.

British Journal of Cancer, Vol. 103, No. 7, p. 933-938, September 28, 2010 Free Full Text Study

USA Today October 1, 2010