Recently, a authority claims, a Korean boy played online games in net cafe 50 hours continuously, soon he wanted to go to toilet, then he died on the floor because of heart disease. The doctor thinks, he was to tire because of playing games, so his heart stopped function. Many old news again proved that, long time playing games would cause death. Luckyly I don't prefer to play games. I ever heard my friends liking to play online games during sleeping time, they often play games 12 hours or more a day.