Essential video portal focusing on human nature, promoting healthy skepticism, critical thinking and reason.

The Science of Kissing

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[5:50]

When you really think about it, kissing is an odd human behavior. You know, all the rubbing of our faces all over each other. So there must be a good reason why we do it, right? From motherly comforts to testing the genetic compatibility of your “mate” . . . the science of kissing is pretty awesome.

[Source: It’s Okay To Be Smart YouTube link]

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