Video games don't just provide relief from emotional pain. They can also help those who are suffering from physical pain. Psychologists at the University of Washington developed a game that helps hospital patients suffering from immense physical pain by using an age-old mental trick: distraction. The virtual reality game "Snow World" put patients in an arctic wonderland in which they throw an endless arsenal of snowballs at a series of targets, such as penguins and snowmen. Military hospitals found the experience helped soldiers recovering from their battlefield wounds. The soldiers who played "Snow World" required less pain medicine during their recuperation.