Adolescents were 140 percent more likely to pull a weapon on someone if their friends had already done so.
Have you ever stopped to wonder why sex and violence so often go hand in hand?
Were you allowed to watch R-rated movies as a kid? Do you smoke now? Learn about the link between smoking and R-rated movies on this Moment of Science.
How do squirrels react to predatory snakes? Find out on this Moment of Science.
Can viewing sexually explicit or violent television help clear your mind? Find out on this Moment of Science.
Two studies suggest that those individuals most prone to violent behavior are narcissists. In Greek mythology, we know Narcissus as the man who fell in love with his own reflection in the waters of a spring, and whose excessive self-love killed him.