By MSNBC 5/10/2012
“…Facial hair, the authors wrote “may intimidate rival males by increasing perceptions of the size of the jaw, overall length of the face, and by enhancing aggressive and threatening jaw-thrusting behaviors … . ”
Read the entire article: http://bodyodd.msnbc.msn.com/_news/2012/05/10/11623486-sorry-guys-we-judge-you-by-your-facial-hair?lite