By Robin Lloyd, LiveScience Senior Edtior
posted: 13 February 2009 02:48 pm ET
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."
Men also could be using the saliva transfer to assess women's fertility and estrogen cycle, but they might want to be wary of turning women off with too much slobber, she added.
More than 90 percent of human societies exchange smooches, Fisher said. And the behavior is rampant among pygmy chimpanzees and bonobos, some of our fellow primates. Foxes lick each others' faces, birds tap their bills together, elephants put their trunks into one another's mouths. Charles Darwin himself thought that kissing was a natural instinct.
One study found that 66 percent of women and 59 percent of men say that the quality of the first kiss can kill a relationship, Fisher said.
more:
http://www.livescience.com/health/090213-kissing-science.html
Printer-friendly format
Email this thread to a friend
Bookmark this thread
(1000+ posts)
Send PM |
Profile |
Ignore
