His walking posture may be different from that of normal people, because when normal people walk and run, their hands and legs are waved in the opposite direction, that is, when we walk with our right leg, our left hand is waved. This coordinated way not only consumes the fat stored in the legs, but also digests the fat in the upper body to some extent. But when some people walk, their legs don't move at all, so there is not so much fat on their legs, because the fat is consumed, but there is a lot of fat in their upper body.
People who sit in the office for a long time tend to get fat in the upper body, because even if they do some paperwork instead of physical work, they still have to walk on their legs to and from work. The walking distance may not be that far, but the invisible activities of their legs make it impossible for them to store too much fat, at least compared with the activities of the upper body, while people sitting in the office basically sit in the office chair for a day. There is no activity in the upper body, which leads to the accumulation of fat in the stomach after eating, which forms a vicious circle, because the fatter a person is, the less he wants to exercise and the fatter he is.
We usually form good exercise habits. This exercise and diet control does not mean that we should have a standard body shape, such as building eight abdominal muscles, but that we should keep our body shape within a reasonable range, control some diet properly every day, don't eat too much, and then spend half an hour jogging every day, which is enough to keep our body shape.