http://www.sciencedaily.com/releases/2015/09/150929142256.htm

“”Unfortunately, in our society, the pressures for boys to act tough and to not express what’s seen as a sign of weakness is suppressing prosocial behaviors,” Carlo said. “We need to pay attention to adolescents’ contexts and their socialization groups. Prosocial behaviors clearly are natural tendencies, and unfortunately, some cultural contexts make it difficult for adolescents to express those tendencies, which should be signs of strength and not weakness. We need to get that message across and make it easier for kids to express what’s innately inside of them.”