Choice of exercise matters because of our age. For instance, a person will start to lose muscle mass after age 35 or something, and the bone density will decrea

Choice of exercise matters because of our age. For instance, a person will start to lose muscle mass after age 35 or something, and the bone density will decrease as well. Therefore, weight training becomes increasingly crucial as we age because it reduces the rate of reductio of our muscle and bone density and it keeps our remaining muscle strong.