Physical exercise means the regular movements of the limbs of our body according to rules, . It is essential to keep our body fit and mind sound. Physical exercise is of various kinds. Good forms of exercise are walking, swimming, riding, racing, rowing, gymnastic, wrestling and playing many outdoor games. All forms of exercise are not suitable for all men. if a weak man takes part in a football game or hockey, he will get tired. It does not good to him. Those who are strong and stout can take all forms of exercise. On the other hand, those who are weak can not take all forms of exercise Walking is the best kind of exercise for all in all circumstances. It is of special use to the weak and the old. Walking in the morning and evening refreshes our body and mind. It also enables a man to enjoy the scenic of nature. Swimming is also a good exercise. It strengthens all the limbs of our body. Gymnastic exercise is not suited to people of all age. The weak and the old cannot stand the stra...