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Promiscuity could lower men's risk of developing prostate cancer, according to a new study.

New research reveals that men who sleep with many different women are almost a third less likely to develop prostate cancer. The latest findings revealed that men who've bedded more than 20 women were 28 percent less likely to suffer prostate cancer. Furthermore, these Don Juans are 19 percent less likely to develop the most aggressive tumors.

Staying chaste is extremely unhealthy, according to researchers who found that celibacy doubles the risk of developing prostate cancer.

Researchers said that the latest findings support previous studies that suggest that regular sexual intercourse flushes cancer-causing chemicals in the prostate, according to the Daily Mail. Ejaculation triggers the prostate to secrete a large about of fluid in the semen.

However, researchers noted that the latest study is the first to suggest that the number of female partners can influence a man's prostate cancer.

"It is possible that having many female sexual partners results in a higher frequency of ejaculations, whose protective effect against prostate cancer has been previously observed in cohort studies," said Professor Marie-Elise Parent of the University of Montreal, according to the Daily News.

The latest study involved 3,208 men who filled out questionnaires about their sex lives. Researchers said that that 1,590 of the participants were diagnosed with prostate cancer between Sep. 2005 and Aug. 2009.

While having female partners decreases men's risk of developing prostate cancer, the study revealed that having more than 20 male partners actually increased men's risk of developing a less aggressive prostate cancer by 500 percent, according to The Telegraph.

"It could come from greater exposure to STIs, or it could be that anal intercourse produces physical trauma to the prostate," Parent said.

"We were fortunate to have participants from Montreal who were comfortable talking about their sexuality, no matter what sexual experiences they have had, and this openness would probably not have been the same 20 or 30 years ago," Parent said in a news release. "Indeed, thanks to them, we now know that the number and type of partners must be taken into account to better understand the causes of prostate cancer."

The findings are published in the journal Cancer Epidemiology.