NIMH Attention Deficit Hyperactivity Disorder booklet英文电子书.pdf

Attention DeficitAttention Deficit Hyperactivity DisorderHyperactivity Disorder DEPARTMENT OF HEALTH AND HUMAN SEDEPARTMENT OF HEALTH AND HUMAN SE RVICESRVICES NATIONAL INSNATIONAL INS TITUTETITUTE S OF HEALTHS OF HEALTH IIII National InstituteNational Institute of Mental Healthof Mental Health ttention Deficit Hyper- activity Disorder (ADHD) is a condition that becomes apparent in some children in the Apreschool and early school years. It is hard for these children to control their behavior and/or pay attention. It is estimated that between 3 and 5 percent of children have attention deficit hyperactivity disorder (ADHD), or approximately 2 million children in the United States. This means that in a classroom of 25 to 30 children, it is likely that at least one will have ADHD. ADHD was first described by Dr. Heinrich Hoffman in 1845. A physician who wrote books on medicine and psychiatry, Dr. Hoffman was also a poet who became interested in writing for children when he couldn’t find suitable materials to read to his 3-year-old son. The result was a book of poems, complete with illustrations, about children and their characteristics. “The Story of Fidgety Philip” was an accurate description of a little boy who had attention deficit hyperactivity disorder.