The Science of the Post-Coital Pass-Out
Thanks to to Scienceline, now you’ll be able to tell your wife WHY you’re such an ass (hint, it’s not your fault) instead of just trying to convince her that it’s fact both of you are prepared to accept. This great article over at Livescience tells you everything you ever wanted to know about why human males, as a statistical majority, immediately visit la-la land after a romp in the sack.
…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 “recovery time” that men are well aware of—the 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.)
Get the full monty after the jump!
Why do Guys Get Sleepy After Sex? – Livescience (pops)
[tags] sex, sleep, coitus, science, why, biology, after [/tags]
Oh man, I could have told you all of that !! You just never asked me the important stuff . . .
Life is Hard . . . Sleep it off !