As little as 90 minutes a week can have a big impact, apparently.

According to an article posted on Web MD, men who exercise for at least two hours a week reduced their risk of death from prostate cancer. The findings come from a joint study conducted by researchers at the Harvard School of Public Health and the University of California-San Francisco. The researchers studied the records of nearly 3,000 men who had been diagnosed with nonmetastatic prostate cancer for a period of over 18 years.

As part of the study, the men recorded the time they spent exercising during the week. Included in the annotated exercise were disciplines such as running, swimming, bicycling, and even outdoor work.

Most important to runners is that men who walked at a “normal to brisk pace” for 90 minutes during the week had a 46% lower risk of dying from any cause.

“Our results suggest that men can reduce their risk of prostate cancer progression after a diagnosis of prostate cancer by adding physical activity to their daily routine,” wrote Stacey Kenfield, the study’s author.

For More: Web MD