Man Up By Smelling an Ovulating Woman

Evolution is awesome, levels of testosterone raised by the scent of a woman… provided that woman is ovulating.

http://pss.sagepub.com/content/21/2/276.abstract

Psychological Science February 2010 vol. 21 no. 2 276-283                                    

Men’s Testosterone Responses to Olfactory Ovulation Cues

Adaptationist models of human mating provide a useful framework for identifying subtle, biologically based mechanisms influencing cross-gender social interaction. In line with this framework, the current studies examined the extent to which olfactory cues to female ovulation—scents of women at the peak of their reproductive fertility—influence endocrinological responses in men. Men in the current studies smelled T-shirts worn by women near ovulation or far from ovulation (Studies 1 and 2) or control T-shirts not worn by anyone (Study 2). Men exposed to the scent of an ovulating woman subsequently displayed higher levels of testosterone than did men exposed to the scent of a nonovulating woman or a control scent. Hence, olfactory cues signaling women’s levels of reproductive fertility were associated with specific endocrinological responses in men—responses that have been linked to sexual behavior and the initiation of romantic courtship.

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