Why You Should Ejaculate At Least 21 Times This Month, According to Science

The key to good prostate health might be in your own hands: Ejaculating frequently may reduce your risk of prostate cancer, finds new research from the Boston University of Public Health.

The study looked at how ejaculation frequency affected prostate cancer risk over the course of 18 years.

It found that men ages 20 to 29 who ejaculated 21 times or more each month were 19 percent less likely to be diagnosed with prostate cancer than those who ejaculated less often, between 4 and 7 times per month.