Researchers from the University of Missouri were able to selectively breed rats that exhibited traits of either extreme activity or extreme laziness. They say these rats indicate that genetics could play a role in exercise motivation, even in humans.
Fuente : http://www.eurekalert.org/pub_releases/2013-04/uom...
Fuente : http://www.eurekalert.org/pub_releases/2013-04/uom...