Video games can improve your kid’s decision making speed. People who played action-based video and computer games made decisions 25% faster than others without sacrificing accuracy, according to a study from the University of Rochester. Other studies suggests that most expert gamers can make choices and act on them up to six times a second—four times faster than most people, and can pay attention to more than six things at once without getting confused, compared to only four by the average person. Surprisingly, the violent action games that often worry parents most had the strongest beneficial effect on the brain, according to cognitive neuroscientist Daphne Bavelier, who studies the effect of action games at Switzerland’s University of Geneva and the University of Rochester in New York.

Kids are not necessarily drawn to video games because of their violence. The attraction lies in their being rewarded by awesome displays of explosions, fireworks, and yes, blood splattering. Also, violent games have the most emotional appeal for kids. But these factors are only secondary to what kids actually enjoy in these games – the opportunity to develop and master skills and have the freedom to make choices in the game universe.

Violent video games may act as a release of pent-up aggression and frustration of your kid. When your kid vents his frustration and anger in his game, this diffuses his stress. Games can provide a positive aggression outlet the same way as football and other violent sports.

Playing video games is safer than having your teens do drugs, alcohol and street racing in the real world.

Most of the bad effects of video games are blamed on the violence they contain. Children who play more violent video games are more likely to have increased aggressive thoughts, feelings, and behaviors, and decreased prosocial helping.
Too much video game playing makes your kid socially isolated. Also, he may spend less time in other activities such as doing homework, reading, sports, and interacting with the family and friends.

Many experts including Henry Jenkins of Massachusetts Institute of Technology have noted that there is a decreased rate of juvenile crime whch coincides with the popularity of games such as Death Race, Mortal Kombat, Doom and Grand Theft auto. He concludes that teenage players are able to leave the emotional effects of the game behind when the game is over. Indeed there are cases of teenagers who commit violent crimes who also spend great amount of time playing video games such as those involved in the Columbine and Newport cases. It appears that there will always be violent people, and it just so happen that many of them also enjoy playing violent video games.

Academic achievement may be negatively related to over-all time spent playing video games. Studies have shown that the more time a kid spends playing video games, the poorer is his performance in school.