12-20-2012, 12:31 PM
Quote:Fighting may have shaped the evolution of the human hand, according to a new study by a US team.
The University of Utah researchers used instruments to measure the forces and acceleration when martial artists hit a punch bag.
They found that the structure of the fist provides support that increases the ability of the knuckles to transmit "punching" force.
Finally an explanation for why I always have the urge to punch people in the face.
http://www.bbc.co.uk/news/science-environment-20790294