Thursday, January 01, 2009

Being on the Pill could make women choose the wrong mate

Smelling genetic similarity when difference called for while courting:

"Not only could MHC[major histocompatibility complex]-similarity in couples lead to fertility problems," said lead researcher Stewart Craig Roberts, an evolutionary psychologist at the University of Newcastle in England, "but it could ultimately lead to the breakdown of relationships when women stop using the contraceptive pill, as odor perception plays a significant role in maintaining attraction to partners."

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