ADHD is one of the most prevalent chronic health problems in school-aged children. In our country, there may be 1-3 children with ADHD in a single classroom. What is scary is not the childhood ADHD itself, but the ignorance, misunderstanding and indifference of parents towards it. Delaying the best time to treat your child can bring lifelong regrets to these already physically and mentally exhausted children. Children with ADHD are physically strong, intellectually normal, and are good at all kinds of activities and games, but they have a lot of difficulties in quietly concentrating on their studies; they are inattentive in class, disoriented, looking around, naughty and active, love to talk to their classmates, and often forget to copy their homework home; they always procrastinate on their homework at home, and often fail to finish it even after several hours; they are careless in exams or daily life. They are careless and lose things. Poor self-control, impulsive, reckless, interrupting, difficult to wait in line, like to play pranks, and even swear, isolated by classmates, teacher-student relationship and parent-child relationship tension …… Phelps is today the world’s attention of the swimming prodigy, but how many people know that he was once a child with ADHD? How many people know that he was once a child with ADHD? When he was in kindergarten, his teacher always complained that he was never quiet, he was always giggling and teasing other children to get attention. When he was in elementary school, he still did things that his teachers called “childish”. He did very well in the classes he was interested in, but only got “Bs,” “Cs” and a few “Ds” in reading-related classes. When he became a fifth grader. During his annual physical exam, his mother was told that he was a child with attention deficit hyperactivity disorder, commonly known as ADHD. But the mother didn’t give up and insisted on standardized treatment in exchange for her son’s healthy growth. Years later, the great mother sat in the stands, listening to the world cheering for her son, and was overwhelmed with pride. Indeed, the success of Phelps can not be separated from the mother’s efforts and persistence, but also strong proof that ADHD in children can be treated, and the treatment effect is good.