From Live Science:CHICAGO — Go ahead. Kiss the girl. And you might make it a wet one, because scientists who are starting to understand the biochemistry of kisses say that saliva increases sex drive.
Those in the kissing-science field of philematology are finding links between kissing and the hormones that affect coupling, researchers said here today at the annual meeting of the American Association for the Advancement of Science (AAAS). And these hormones are one of the keys to our reproductive success, so there's a link to evolution and passing on our genes to the next generation.
"There is evidence that saliva has testosterone in it," said Rutgers University anthropologist Helen Fisher, and testosterone increases sex drive. "And there is evidence that men like sloppier kisses with more open mouth. That suggests they are unconsciously trying to transfer testosterone to stimulate sex drive in women."
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