27 febrero 2015
Boys who show aggressive tendencies develop greater physical strength as teenagers than boys who are not aggressive, according to new research. Research has suggested a link between male upper-body strength and aggressive tendencies, but the mechanisms that account for the link are not well understood.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/to07qtHIzAc/150227112757.htm
