Scientists are very willful. Ordinary people’s quarrels may only be lip service, but scientists’ arguments are [hands-on].
Over the years, the relationship between masturbation and prostate cancer has been debated continuously, and the scientific community has made different studies one after another to explore the relationship between the two. Because the concept of ejaculation is clearer and better to calculate the frequency than masturbation, most studies infer the number of masturbations through the frequency of ejaculation.
The beginning of an argument
Published at:August 2003
Publish periodicals:British Journal of Urology (BJU International)
Research:A case-control study of 2,338 men found that ejaculation more than 4.67 times per week reduced the risk of prostate cancer by 36%.
Conclusion:Ejaculation has [protective effect], but I don’t know whether it is a what mechanism and needs further research.
Published at:January 2004
Publish periodicals:Last time I studied the same magazine
Research:The article was published in the form of a reply. They listed a 1988 review, showing that although the elderly over 50 years old have a large number of [Lu], the number of penis-vaginal intercourse is very small, and the incidence of prostate cancer is still relatively high.
At the same time, Giles, a scientist who criticized the Australian research, misled the public by allowing the media to hype [masturbation can prevent prostate cancer] before the academic circles have determined.
Conclusion:Criticizing the research conclusion of the first article, it is pointed out that the research of the first article cannot lead to the conclusion that the more frequent the Lu, the lower the prevalence rate of prostate cancer, because Lu does not mean ejaculation.
The situation has reversed again.
Published at:April 2004
Publish a magazine:Journal of the American Medical Association (JAMA)
Research:The U.S. Study is the most expensive and proving research method in epidemiology. It is a cohort study.
From 1992 to 2000, the study spent a total of 8 years and followed up nearly 29,342 American men to listen to their self-report on the frequency of ejaculation and finally track the occurrence of prostate tumors.
If the influence of sexually transmitted diseases is not considered, the incidence of prostate cancer will decrease with the increase of ejaculation frequency, that is, the more ejaculation times, the lower the incidence of prostate cancer! Especially in the ultra-high frequency ejaculation group (ejaculation more than 21 times per month), the risk of prostate cancer in this group is only 0.67% of 7-9 times per month.
It’s really not good to do small ones, not enough ones to do medium ones, and strong ones must be done to prevent cancer. In order to reduce the risk of prostate cancer, it is best to do more than 21 times a month and ejaculate every time. However, the conclusion of this study coincides with the Australian study of 4.67 ejaculations per week (equivalent to about 19 ejaculations per month).
Conclusion:However, the researchers were cautious to conclude that there was no significant correlation between ejaculation frequency and prostate cancer risk. The reason is that ejaculation frequency in most groups has nothing to do with prostate cancer risk.
To quarrel endlessly
Publish a magazine:British Journal of Urology
Results:The results of the study are different from those of Australia and the United States. They found that frequent masturbation among young people aged 20 to 30 increases the risk of prostate cancer. For example, people in their 20s who do masturbation 2 to 7 times a week increase the risk of prostate cancer by 88% compared with those who do masturbation only once a month. However, older men in their 50s reduce the risk. At the same time, they also found that the frequency of sexual intercourse is not related to the risk of prostate cancer.
Conclusion:It seems that frequent ejaculation in young people will increase the risk of prostate cancer.
In a word
Masturbation or sexual intercourse is only a superficial phenomenon. Whether prostate cancer can be truly prevented depends on ejaculation.
There is no consensus on whether high-frequency ejaculation will reduce the risk of prostate cancer. It is divided into three groups: beneficial theory, harmful theory and irrelevant theory.
The beneficial theory holds that ejaculation can wash away pipes, just like breast milk discharge to prevent breast cancer, or ejaculation can discharge carcinogenic substances accumulated in prostate gland.
However, the harmful theory holds that frequent ejaculation will lead to abnormal changes in androgen levels, and abnormal changes in hormone levels are one of the important causes of various cancers.
The British Journal of Urology alone has published two articles with different views, from “ejaculation can prevent cancer” in 2003 to “masturbation in young people increases the risk of cancer” in 2009.
In a word, the mainstream scientific community now tends to be beneficial or irrelevant. At least for the time being, there is no need to struggle with the problem of cancer or cancer prevention, thus increasing unnecessary psychological burden.
For young people aged 20-30, there is no need to go to the police to prevent prostate cancer. Finally, remember, only ejaculation can be effective.
Considering that you will quarrel after reading the article, attach the references below. Remember to quarrel very seriously and with the documents.