Xiao Ming was a 15-year-old boy whose mother, Ms. Zhang, looked very haggard when she brought him to the hospital because, in Ms. Zhang’s words, “Every day raising Xiao Ming was like a war.” Why? It turns out that since Xiao Ming started kindergarten, teachers have been complaining to parents about him, saying that he is “too naughty, never listens” and “always looks around in class, doesn’t listen, and even bothers other students”. Although it was disturbing when he was a child, Xiaoming’s grades were sloppy enough to pass. Since Xiao Ming entered middle school, his grades have plummeted. Ms. Zhang hates iron, inevitably nagging and reproaching the child a few, and every time Xiaoming is very impatient, and even tantrums confrontation, the relationship between mother and son has become particularly tense. ADHD is a common name for attention deficit hyperactivity disorder, a developmental disorder in which the child’s problems include difficulty maintaining attention, hyperactivity and impulsive behavior. Some children may be predominantly inattentive, others may be predominantly hyperactive and impulsive, while others may be prominent in both, such as Xiaoming, who may be the last, mixed type of child, so his ‘bad habits’ will be more, and parents will have more trouble raising him.