European Urology, researchers pulled the data from 31,925 men who gave their average monthly number of ejaculations. The data comes from 1992 until 2010. “We evaluated whether ejaculation frequency throughout adulthood is related to prostate cancer risk in a large US-based study,” the study authors wrote. “We found that men reporting higher compared to lower ejaculatory frequency in adulthood were less likely to be subsequently diagnosed with prostate cancer.“These findings provide additional evidence of a beneficial role of more frequent ejaculation throughout adult life in the etiology of PC [prostate cancer], particularly for low-risk disease.”Ejaculating has been proven to help in other ways as well.