I'll tell you a story: Xu zhēng, after receiving the invitation from No Man Valley, was asked to lose weight, and time was tight. It is impossible to wait for you to exercise or lose weight in other ways in the normal way. In the film and television circle, losing weight quickly is a compulsory course. He spent 1 week in the valley with some friends, drinking only water for the first three days and eating and drinking for the next four days.
This practice of crossing the valley comes from Buddhism and is also a kind of yoga. Ordinary people don't recommend this method, which is harmful to health.