Men who have more sex and ejaculate more frequently lower their risk of prostate cancer, says a new study.
The study pointed out that those who ejaculated at least 21 times in a month significantly cut their risk of prostate cancer by 22 percent. The study compared men who ejaculated 21 times in a month to men who did so four to seven times per month.
The study's findings rely on the Health Professionals Follow-up Study, which recruited nearly 32,000 men in 1992. At that time, the participants were asked how frequently they ejaculated while in their 20s and 40s, as well as in the previous year (1991), from which a lifetime average was computed.
In the following years, prostate cancer was diagnosed in more than 3,800 of the men out of which 384 of the cases were lethal.
"It could be the clearance of cancer-causing agents (through ejaculation), or it could be hormonal changes that lead to less generation of those free radicals" that cause cancer,said Dr. Ryan Hedgepeth, a urologist at Ohio Health. The study is a follow-up to a 2004 paper published in the Journal of the American Medical Association. That study found that increased rate of ejaculation did not increase a man's risk of prostate cancer.
The study was presented at the American Urological Association conference.
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