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allavega meikar žetta sense ad minnu mat, las žetta i vetur i Psychology Today: a pillunni dragast konur ad monnum sem lykta einsog fešur žeirra eda bręšur, uppa oryggid, en žegar pillunni sleppir ža verša žęr žeim afhuga...

The Divorce Pill?

Women generally prefer the smell of men whose MHC gene complements are different from theirs, setting the stage for the best biological match. But Wedekind's T-shirt study revealed one notable exception to this rule: women on the birth-control pill. When the pill users among his subjects sniffed the array of pre-worn T-shirts, they preferred the scent of men whose MHC profiles were similar to theirs-the opposite of their pill-free counterparts.

This dramatic reversal of smell preferences may reflect the pill's mechanism of action: It prevents the ovaries from releasing an egg, fooling the body into thinking it's pregnant. And since pregnancy is such a vulnerable state, it seems to activate a preference for kin, who are genetically similar to us and likely to serve as protectors. "When pregnant rodent females are exposed to strange males, they can spontaneously abort," Herz says. "The same may be true for human females."  

 


mbl.is Hr. Rangur valinn vegna pillunnar
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