It must be a diet. Dieting loses not only nutrition absorption, but also excessive dieting can lead to health problems, from gastrointestinal discomfort to anorexia, and even infertility caused by endocrine disorders (girls). The rebound is even more horrible. After months of hard dieting, I will eat three Jin of meat. Although exercise is the most difficult course to consume calories, people's temperament changes from the inside out, and their body and mind become better. If you want to lose weight, you'd better have a healthy diet and moderate exercise