Physical activity plays an important role in the development of overall health and prevents various diseases. Apart from preventing diseases, playing sports is an excellent physical activity and thus aids in improving the functional capabilities of body. Sports are not only beneficial to young people, but also for older generations. However, it is always good to start early. Kids should be encouraged in participating in playing sports at school or at social events. This helps in obtaining the maximum amount of positive results of playing sports involving physical activity. Many older people find improved alertness over time if they engage in sports.