Kissing is a natural aspect of life. However, very few people grasp its real meaning. The Science of Kissing (2011) discusses why kissing is so profoundly rooted in both human and animal biology, what happens physiologically when we engage in it and why it is far more necessary than you can imagine.
Sheril Kirshenbaum is a marine biologist, author, speaker and research scientist. She is a contributor to Science Friday and Scientific American and was included in The Best American Science Writing 2010.