1. A healthy and good mood is the wealth of a person's life, and establishing a good parent-child relationship is also very important for the growth of children. As parents, we should understand the child's personality, accept his emotions, and be the guide and companion on his development path, not the controller of his emotions. Understand children's resistance and disputes, know how to listen to children's needs and avoid didactic education.

2. In order to keep their children mentally healthy and away from the danger of depression, Professor Li Meijin thinks that the best way is to let their children take more physical exercises and suffer physical pain when they are young. Especially before the child 10 years old, physical training through physical pain is the most effective, because this stage is the most critical period for the formation of the child's mental model.

As long as the child gets a lot of physical exercise as a child, his ability to endure pain and frustration will be greatly enhanced. When a child experiences pain again and again in the process of physical exercise, his psychological resilience will improve constantly. When he encounters setbacks and pains in the process of growing up, he will have the experience and confidence to overcome them. Therefore, Professor Li Meijin believes that a child, regardless of his IQ, whether he has achieved anything in his career when he grows up, will be happy in his later years as long as he has received a lot of physical exercise and pain as a child.

Of course, from the perspective of children's mental health, although physical exercise is very important, it also needs the cooperation of other factors. For example, harmonious and friendly family atmosphere, positive outlook on life and values, good communication skills and so on. Therefore, parents should not ignore the influence of other factors on their children's psychological development while guiding their children to participate in physical exercise.