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The Evolutionary Secrets of the Female Orgasm

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5 thoughts on “The Evolutionary Secrets of the Female Orgasm

    1. Physically drawing up genetic material during contractions seems, mechanistically, to be a logical explanation. Also, evolution filled us with features that have more than one function, but which probably at one time resulted in a reproductive advantage. Some features tag along for the ride because they exist on genes next to other features which do convey an advantage.

      1. Surely the reproductive advantage comes from having an enthusiastic partner who is getting something from the coupling, other than the chance of bearing offspring.
        Yeah! Women can be shallow too. 🙂

    1. Here’s info about that sleepiness men have that women wonder about. (My girlfriend says she has more energy after, not less.)

      Then there is the biochemistry of the orgasm itself. Research shows that during ejaculation, men release a cocktail of brain chemicals, including norepinephrine, serotonin, oxytocin, vasopressin, nitric oxide (NO), and the hormone prolactin. The release of prolactin is linked to the feeling of sexual satisfaction, and it also mediates the ‚Äúrecovery time‚Äù that men are well aware of‚Äîthe time a guy must wait before “giving it another go.” Studies have also shown that men deficient in prolactin have faster recovery times.

      Prolactin levels are naturally higher during sleep, and animals injected with the chemical become tired immediately. This suggests a strong link between prolactin and sleep, so it’s likely that the hormone’s release during orgasm causes men to feel sleepy.

      (Side note: prolactin also explains why men are sleepier after intercourse than after masturbation. For unknown reasons, intercourse orgasms release four times more prolactin than masturbatory orgasms, according to a recent study.)

      Oxytocin and vasopressin, two other chemicals released during orgasm, are also associated with sleep. Their release frequently accompanies that of melatonin, the primary hormone that regulates our body clocks. Oxytocin is also thought to reduce stress levels, which again could lead to relaxation and sleepiness. – scienceline

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