The Science of Kissing

The Science of Kissing

From the folks at It’s OK to be Smart:

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.