# Sleeping with numerous women reduces men's chance of prostate cancer

**URL:** <https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [October 28, 2014, 6:00pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781 "2014-10-28T18:00:11Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![Northern\_Piper](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/northern_piper/32/5304_2.png) [@Northern\_Piper](https://boards.straightdope.com/u/Northern_Piper)\
**Post date:** [October 28, 2014, 6:00pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/1 "2014-10-28T18:00:11Z")

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So says a recent study:

> **[Sleeping with numerous women protects men from prostate cancer, study reveals](https://m.independent.ie/life/health-wellbeing/health-features/sleeping-with-numerous-women-protects-men-from-prostate-cancer-study-reveals/30699383.html)**
>
> Sleeping with numerous women protects a man from prostate cancer, a study has found.

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**Author:** ![Eonwe](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/eonwe/32/240_2.png) [@Eonwe](https://boards.straightdope.com/u/Eonwe)\
**Post date:** [October 28, 2014, 6:16pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/2 "2014-10-28T18:16:55Z")

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Well, I’m screwed . . . and not screwed, all at the same time!

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**Author:** ![Sattua](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sattua/32/11906_2.png) [@Sattua](https://boards.straightdope.com/u/Sattua)\
**Post date:** [October 28, 2014, 6:22pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/3 "2014-10-28T18:22:10Z")

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I had a boyfriend who insisted that ejaculating frequently lowered a man’s chance of prostate cancer (and wasn’t I ready to do my duty, for his health?)

Turns out he was a constant cheater, so maybe he knew this half of the equation, too.

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**Author:** ![jtur88](https://avatars.discourse-cdn.com/v4/letter/j/e9c0ed/32.png) [@jtur88](https://boards.straightdope.com/u/jtur88)\
**Post date:** [October 28, 2014, 6:23pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/4 "2014-10-28T18:23:18Z")

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Duh. Prostrate health is consistent with regularity of ejaculation, which has been known (or at least suspected) by the medical science for decades. The more “new” conquests one has, the more frequently he goes through a period of enthusiastic and frequent ejaculation, renewing prostate vigor.

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**Author:** ![billfish678](https://avatars.discourse-cdn.com/v4/letter/b/7bcc69/32.png) [@billfish678](https://boards.straightdope.com/u/billfish678)\
**Post date:** [October 28, 2014, 6:25pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/5 "2014-10-28T18:25:33Z")

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But it greatly increases your chance of knocking up the crazy.

I’ll take my chances with cancer thank you very much.

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**Author:** ![TriPolar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tripolar/32/3008_2.png) [@TriPolar](https://boards.straightdope.com/u/TriPolar)\
**Post date:** [October 28, 2014, 6:26pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/6 "2014-10-28T18:26:34Z")

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I’ll inform my wife. I’m not expecting this to change her mind on the subject.

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**Author:** ![Count\_Blucher](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@Count\_Blucher](https://boards.straightdope.com/u/Count_Blucher)\
**Post date:** [October 28, 2014, 6:27pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/7 "2014-10-28T18:27:38Z")

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Hmmm… I wonder what women would think of this? _cue dream sequence_

“So… I guess your gonna die. Can I have your car?”

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**Author:** ![hotflungwok](https://avatars.discourse-cdn.com/v4/letter/h/edb3f5/32.png) [@hotflungwok](https://boards.straightdope.com/u/hotflungwok)\
**Post date:** [October 28, 2014, 6:28pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/8 "2014-10-28T18:28:09Z")

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Wait, I thought it was [masturbation](http://www.foxnews.com/story/2008/04/23/study-masturbation-may-prevent-prostate-cancer/) that prevented prostate cancer?

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**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\
**Post date:** [October 28, 2014, 6:30pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/9 "2014-10-28T18:30:39Z")

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> [@TriPolar](#):
>
> I’ll inform my wife. I’m not expecting this to change her mind on the subject.

“Sorry, honey. Doctors orders!”

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**Author:** ![Thudlow\_Boink](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thudlow_boink/32/320_2.png) [@Thudlow\_Boink](https://boards.straightdope.com/u/Thudlow_Boink)\
**Post date:** [October 28, 2014, 6:34pm UTC](https://boards.straightdope.com/t/sleeping-with-numerous-women-reduces-mens-chance-of-prostate-cancer/702781/10 "2014-10-28T18:34:45Z")

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> [@jtur88](#):
>
> Duh. Prostrate health is consistent with regularity of ejaculation, which has been known (or at least suspected) by the medical science for decades. The more “new” conquests one has, the more frequently he goes through a period of enthusiastic and frequent ejaculation, renewing prostate vigor.

Indeed, the study speculates as much:

> [@](#):
>
> The authors wrote in their paper: "We postulate that the protective effect of having had several female sexual partners may relate to a greater frequency of sexual intercourse or ejaculation.
> 
> “Although reasonable, this explanation remains speculative as our study did not collect information on these practices. Other measures related to sexual activity that could be addressed in future investigations include condom use, masturbation practices, and type of intercourse that occurred with each partner.”

Unless attempts are made to control for the overall frequency of intercourse (or ejaculation), asserting that it’s the number of sexual partners that makes the difference is silly. (Not to mention that, obviously, sleeping with numerous women _increases_ men’s chance of other sorts of diseases.)
