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Sex And Masturbation Cut Prostate Cancer The Cancer Council
Victoria in Australia has just announced the results of a study into the
relationship between prostate cancer and ejaculation in men. Published in the
British Journal of Urology International, the results of the study show there is
evidence that the more frequently men ejaculate between the ages of 20 and 50,
the less likely they are to develop prostate cancer.
The research suggests that the protective effect of ejaculation is greatest
when men in their twenties ejaculated on average seven or more times a week.
This group were one-third less likely to develop aggressive prostate cancer when
compared with men who ejaculated less than three times a week at this age.
The research was led by Professor Graham Giles, Director of the Cancer
Council's Cancer Epidemiology Centre and involved researchers from The Cancer
Council Victoria, The University of Western Australia, The European Institute of
Oncology and the University of Otago, New Zealand.
Professor Giles speculated that the protective effects of ejaculation may be
that frequent ejaculation prevents carcinogens building up in the prostatic
ducts. "While it is generally accepted that prostate cancer is a hormone
dependent cancer, apart from age and family history, its causes are poorly
understood," he said. "If the ducts are flushed out, there may be less build up
and damage to the cells that line them."
The research was conducted with men who were under the age of 70 when they
were diagnosed with prostate cancer, and with a group of similarly aged healthy
men. There were 1079 men with prostate cancer and 1259 healthy men in the study.
The men, from around Australia, filled in a confidential questionnaire which
sought details of their sexual activity at various times in their life.
Professor Giles said that his team examined many aspects of sexual activity.
"We looked at a number of different aspects of sexual activity including the
number of sexual partners, the frequency of ejaculation, as well as the number
of times men ejaculated at different ages, from their twenties through to their
fifties. The study looked at ejaculation in the context of intercourse with
another person, masturbation and nocturnal emissions. This is a different
approach from previous studies which have mostly looked at links between sexual
intercourse and prostate cancer. Our research indicates that there is no
association between prostate cancer and the number of sexual partners, which
argues against infection as a cause of prostate cancer in the Australian
population. We also found no association between maximum number of ejaculations
in a 24 hour period and prostate cancer. Therefore, it is not men's ability to
ejaculate that seems to be important. If the ducts are flushed out, there may be
less build up and damage to the cells that line them. |
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