I highly recommend everyone, who's interested in music influence on humans read "Musicophilia: Tales of Music and the Brain" <a href="http://www.amazon.com/Musicophilia-Tales-Music-Revised-Expanded/dp/1400033535/" rel="nofollow">http://www.amazon.com/Musicophilia-Tales-Music-Revised-Expan...</a> It's full of great examples of medical cases, explanations and interesting theories.