We should abide by some rules of health to keep fit. Fitness is very essential for us.
At first we should eat a balanced diet because a balanced diet contains all the food value. We should drink plenty of water.
The kidneys are the body's filter. They can't work efficiently without sufficient water. After that we should remain neat and clean. Then we should go to bed early and rise early. Next you should take physical exercise regularly. It helps our muscles and nerves to work properly.
It helps us to breath more deeply and get more air into our lung. We can not think of a sound mind without a sound health. It is physical exercise which enables us to build a good health.
It also helps the blood to travel all over the body and prevent constipation.