We are talking about good body exercises which a bodily or mental exertion, especially for the sake of training or improvement of health, Walking is good exercise. something done or performed as a means of practice or training, exercises for the piano. a putting into action, use, operation, or effect: the exercise of caution.

A good body exercise are any bodily activity that enhances or maintains physical fitness and overall health and wellness. In terms of health benefits, the amount of recommended exercise depends upon the goal, the type of exercise, and the age of the person. Even doing a small amount of exercise is healthier than doing none.