There's nothing like a good kiss. There's also nothing like a bad kiss. But why do we kiss in the first place? It's such an odd activity, yet 90% of all people do it. Laci joins Anthony in search of the answer.

Read More:

Kissing helps us find the right partner -- and keep them
http://www.eurekalert.org/emb_releases/2013-10/uoo-khu100913.php
"What's in a kiss? A study by Oxford University researchers suggests kissing helps us size up potential partners and, once in a relationship, may be a way of getting a partner to stick around."

VSauce: Why Do We Kiss?
http://www.youtube.com/watch?v=ixQbCXLUUj8

Odd Facts About Kissing
http://www.psychologytoday.com/blog/let-their-words-do-the-talking/201212/odd-facts-about-kissing

MHC-Dependant Mate Preferences In Humans
http://www.jstor.org/discover/10.2307/50182?uid=2&uid=4&sid=21102747113017

Watch More:
Why We Blush:
http://testtube.com/dnews/dnews-114-why-do-we-blush
TestTube Wild Card:
http://testtube.com/dnews/dnews-437-pets-make-us-healthier?utm_campaign=DNWC&utm_medium=DNews&utm_source=YT
Why We Yawn:
http://testtube.com/dnews/dnews-524-yawn
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