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Porn & the Quality of Sperm

There have been many interesting studies done in recent years about the supposed “sperm wars” where by it has been shown that sperm compete in different ways in order to be the first one that reaches the egg and ultimately fertilizes it.

A recent Australian study revealed that men who men who view pornographic images of two men and a woman produce better-quality sperm than men who view pornographic images featuring just women. This finding suggests that humans may be capable of subconsciously increasing semen quality when faced with the possibility that their sperm will have to compete with those of other men in a woman’s reproductive tract.

Researchers asked 52 heterosexual men to ejaculate into a container after watching one of the two types of images. There was a significant difference in sperm motility with those watching the sperm competition images (two men with one woman) having more motility. However, they also found that these same men produced less sperm than the group who had viewed the women only images.

What the researchers found most interesting was that the effect was immediate. This suggests that something in the body can be adjusted very, very quickly and the findings might eb useful in improving the quality of sperm during fertility treatments.

Similar evidence has been found among animals whose females normally mate with more than one partner. Male chickens, for example, ejaculate more sperm when with an attractive hen with a large comb than an unattractive one to increase the odds that one of their sperm will get to the egg before those of other contenders. Bulls and boars used for artificial insemination by the farming industry produce better-quality semen if they are allowed to view other animals mating.

It is believed that in our primate lineage there was probably sperm competition and modern humans are left with biology that reflects this even though we do not have the multiple matings that our ancestors had. Previous studies have found that men who look at pornographic images depicting groups prefer the sorts of sperm-competition images used in the current study. It may be that men have evolved to find them more erotic so that they can respond appropriately to sperm competition.

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6 Responses to “Porn & the Quality of Sperm”

  • funforlifeD:

    Well I have been finding it hard to fall pregnant because of my husbands low sperm count. I may have to introduce a third party into out bedroom for sex. Maybe that will improve his quality and Quantity. Mmmm I do like the thought of that…..lol

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  • realguy7:

    Very interesting studies.

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  • arcangel:

    Threesomes can be good for some things then, rather than just pleasure.

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  • apluswow:

    Wow amazing. How do scientists come up with these ideas. They just sit around drinking coffee discussing what next test to cum up with. Or is it really to test their own fantasies? Makes one wonder…

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  • 1hotcougar:

    I would love to a fly on the wall watching this.

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  • westy07:

    I would love to put my hand up for a test like that, or any other kind for that matter.

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