Impact of media violence
The Journal of Adolescent Health studies the impact of media violence and comes up with bad news: exposure to such things is the second worse threat to youth after only lung cancer.
In summary, exposure to electronic media violence increases the risk of both children and adults behaving aggressively in the short-run and of children behaving aggressively in the long-run. It increases the risk significantly, and it increases it as much as many other factors that are considered public health threats. As with many other public health threats, not every child who is exposed to this threat will acquire the affliction of violent behavior, and many will acquire the affliction who are not exposed to the threat. However that does not diminish the need to address the threat.
The relative strength of known public health threats.
Worrying if this gets confirmed by other studies.
