Humans Crave Violence Just Like Sex

This was forwarded to me in email (thanks, Aedan!) and we were discussing it at a social gathering last night.

I'm going to see if I can't hunt up more information on this. Discuss! :)

http://www.livescience.com/health/080117-violent-cravings.html

EDIT:

The study was conducted at Vanderbilt University. Here's a more detailed link:

http://www.vanderbilt.edu/news/releases?id=38986

I went hunting for the actual study from their link to springerlink.com and it's not up there yet so far as I can tell.