Do you know Why is exercise good for us because Regular exercise is important because it keep bones, joints and muscles healthy. During any physical exertion, the rat at which the heart beats increases as it pumps more oxygenated blood around the body. How quickly the heart you’re returns to normal after exercise is one way to assess how fit someone is and how exercise is actually improving their fitness.
Once almost everyone did manual work of some kind. It was essential for survival. Human bodies were not designed for the inactive lives many of us now lead. That is why exercise is important for good health.