Proper exercise and reasonable diet. The amount and intensity of exercise should not be too large. Physical education has a two-way effect on growth and development, that is, proper exercise mode, amount and intensity can promote children's growth and development. Opposite is opposite! In terms of diet, various nutrients fully meet the needs of human growth and development, but be careful not to have a high-energy diet. In particular, starch, sugar, alcohol, oil and other pure heat foods should be controlled.