Just look at the irony: A very physically active person doesn't have to exercise to lose weight. The almost paradoxical conclusion - but which actually explains a lot - is from a group of American scientists. They found that even at rest, people who do a lot of physical activity spend a lot more energy when they are resting, than a sedentary person.
According to scientists, everyone produced about the same amount of ATP. However, those who are physically active had much more metabolic activity in the muscles to burn off energy, even when at rest, so they spend more energy on muscle rest.
