Sealed With A Kiss

Anthropologist Helen Fisher, author of "Why Him, Why Her?" has conducted a study on a very touchy subject -- kissing. She explains what kissing does in the brain to help keep couples together.

"What is the science of kissing?" Early Show co-anchor Harry Smith asked.

"We're beginning to find out what happens in the brain when you kiss somebody. And in fact, I think it can trigger all three of the basic mating emotions. Lust, romantic love, and deep feelings of attachment. But we know that there is testosterone in saliva and men like sloppier kisses, more open kisses with more tongue action. And we think that it's because they're trying to inject the testosterone," Fisher said.

"You know, that makes all kinds of sense, right? And there is a prelude to whatever might happen eventually, right?" Smith asked.

"Of course. Well, it's a very important prelude, because over 50 percent of men and women who start liking somebody will stop liking them after the first kiss. So, it can be the kiss of death, as opposed to the kiss of life," she said.

Fisher talked more about the study that was conducted at a kissing school as well as improving one's "kissability."

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