It is best not to choose dieting in the second day of junior high school. Improper dieting will affect your development. Choose drinks and exercises that help you lose weight, such as drinking oolong tea, green tea and Pu 'er, or making tea with lotus leaves and hawthorn, and doing aerobic exercise for 30-45 minutes every day. Junior high school students should still be able to take time out to exercise every day. In addition, research shows that lack of sleep can also lead to obesity.