Sitting in one third of the chairs is the standard etiquette sitting posture. It has nothing to do with losing weight.
If you don't want too much pressure on your hips, it's best to let your thighs touch the chair. Your thighs can help your hips to break down the pressure, reduce the pressure on your hips, and make your blood not circulate and your metabolism slow.
You know, the decomposition of fat requires metabolism. If the metabolism is slow, how to lose weight?
Therefore, it seems that the theory of losing one-third weight does not exist at all.
You can check it online yourself. . . I'm absolutely right.