London - Men who sleep with more than one woman in their lifetime are less likely to develop prostate cancer, research shows.
Those who had 20 or more female sexual partners over their lives reduced their risk by 28 percent compared to those with one.
And virgins were twice as likely to be diagnosed than sexually experienced men.
The study involved 3 208 men who had answered questions about their lifestyle and sex lives. The Canadian researchers said that a higher frequency of sexual encounters could help prevent the cancer.
Lead researcher Professor Marie-Elise Parent, from the University of Montreal, explained: “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. We now know that the number and type of partners must be taken into account to better understand the causes of prostate cancer.”
Other experts have speculated that having lots of sex could reduce the concentration of cancer-causing substances in the semen.
Despite the findings, published in the journal Cancer Epidemiology, Professor Parent cautioned against men using the findings to be promiscuous. - Daily Mail