According to the <i>The Journal of the American Medical Association</i>, the study led by Dr. Michael Leitzmann of the National Cancer Institute confirms a small study published last year by an Australian research team: "high ejaculation frequency possibly may be associated with a lower risk of total and organ-confined prostate cancer". More details in this <a href="http://www.cancerfacts.com/Home_News.asp?NewsId=1659&CB=14&CancerTypeId=4">article</a>.