Now colleges and universities are seeing a change in the students, lifestyle. More and more college students prefer to stay in the dormitory in their leisure time and become indoorsmen or indoorswomen The Internet offers students many options to kill the spare time. Various on-campus services, from food delivery to laundry services, are fuelling the culture of staying in dormitories. Some students argue that outdoor sports or social activities are no better than staying in the dormitory and playing on a computer. Irregular life and lack of physical exercise have become the health enemy of college students.