Who is in charge of your head

An interesting article published in the New York Times in which the author shows that parasitic involvement affects not only animals but humans.   Profound changes occur not only in the physical area but the mental/emotional/behavior realms as well.   Another reference is the book Parasite Rex.

http://www.nytimes.com/2012/10/07/opinion/sunday/whos-in-charge-inside-your-head.html?_r=2&emc=eta1