The results of a new survey reveal that video games help keep nightmares away. According to an online survey of 98 military personnel, regularly playing games that involve war and combat like Call of Duty help to decrease the level of "harm and aggression" dreamers feel when they are dreaming about war. Of those surveyed, soldiers who did not play games reported having more violent dreams combined with feelings of helplessness. The survey was conducted by Jayne Gackenbach of Grant MacEwan University in Edmonton, Canada. She presented some of her findings at the Game Developers Conference earlier this month.