Frequent ejaculation may protect against cancer
Frequent sexual intercourse and masturbation protects men against a common form of cancer, suggests the largest study of the issue to date yet.
The US study, which followed nearly 30,000 men over eight years, showed that those that ejaculated most frequently were significantly less likely to get prostate cancer. The results back the findings of a smaller Australian study revealed by New Scientist in July 2003 that asserted that masturbation was good for men.
Another theory is that frequent drainage of prostate fluid stops tiny crystalloid microcalcifications - which have been associated with prostate cancer - from forming in the prostate duct, says Leitzmann.
Giles notes that neither study examines ejaculation during the teenage years - which may be a crucial factor. But he says: "Although much more research remains to be done, the take home message is that ejaculation is not harmful, and very probably protective of prostatic health - and it feels good!"