Exercise is good both for the body and mind. Exercises help in strengthening the various parts of the body, improve metabolism and the functioning of the body. It improves the immunity of the body too.
Exercise inculcate a sense of discipline and team spirit if done in a group as they do in schools.
A sound body also creates a sound mind. The mind is refreshed and able to work properly. This is particularly in the case of students who have to study their lessons.