Although not all games are equal, there's plenty of evidence that playing some violent video games can cause aggressive real-world behavior. Sites like addictinggames.com offer popular games whose sole point is to play the role of a hit-man or even to torture animals. Over 85 percent of video games include violence.

When these statistics are combined with the results of studies showing that aggressive attitudes and even actions can be increased after playing violent games for as little as 20 minutes, it's possible that we have a major problem on our hands.