Prostate cancer risk reduced by sleeping with many women, but increased with many men, study finds — ScienceDaily
Marie-Elise Parent and Marie-Claude Rousseau, professors at university’s School of Public Health, and their colleague Andrea Spence, published their findings in the journal Cancer Epidemiology. The results were obtained as part of the Montreal study PROtEuS (Prostate Cancer & Environment Study), in which 3,208 men responded to a questionnaire on, amongst other things, their sex lives. Of these men, 1,590 were diagnosed with prostate cancer between September 2005 and August 2009, while 1,618 men were part of the control group. Risk associated with number of partners Overall, men with prostate cancer were twice as likely as others to have a relative with cancer…