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A new study in Evolutionary Psychological Science found that men produce quality sperm with a new partner compared to when. New research published in the journal Evolutionary Psychology investigated men produce higher quality ejaculate in response.
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Human semen, too, triggers changes in the uterus, and might have wider.. after to strengthening the emotional bond with their partner. When it comes to relationships, mainstream society tends to favor the death us approach. But new research conducted by.
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Men who have sex with new partners are more likely to reach orgasm faster and produce better quality sperm, a new study by scientists. New York: Want to improve your sperm quality? Try casual sex with a new once in a while and ramp up the sperm count, an.
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Men, listen up. If you want to have children: cheat on your partner. That is one of findings of some risky new research by the University of Ohio. Ok, so.
having sex with a new guy for the first time and it last long. Read to find out why men orgasm faster during sex with a new partner and of a sperm would decrease with repeated exposure.
He and his new partner were very much in love and planned to have a baby, but trying unsuccessfully, fertility tests revealed that his.
Sperm competition has been observed extensively in the animal world and it can pretty weird. Some male spiders voluntarily cut off their own penis and.
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