Just like quitting smoking by yourself, people who rely entirely on their own willpower without any external interference are called those who dare to be cruel to themselves! So is losing weight. Really successful weight loss is not only blind weight loss, but also to prevent rebound after weight loss. Rather than fighting for fitness equipment for pleasure, it is better to taste bitterness in order to control rebound after losing weight. Imagine all kinds of food temptations and hot summer desserts. What a tough battle it is for a colleague who wants to lose weight! Such people are not cruel to themselves!