Some children won't but apparently can't sit still, pay attention, follow instruction, and obey rules, even when it would be to their own advantage as well as everyone else's. These are signs of a child that is diagnosed as having attention deficit disorder (ADD). This disorder was formerly known as minimal brain damage, minimal brain dysfunction, hyperkinesis, and hyperactivity, the disorder received its present official name over 23 years ago (Harvard Health Publications 1). These symptoms are now proven to me carried on into adulthood.
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There are three major symptoms of ADD, which are hyperactivity, impulsiveness, and inattentiveness. In the American Psychiatric Association's diagnostic manual, the disorder is divided into three classes, depending on whether it involves all three symptoms, the first two only, or mainly the third. The vast majority of the cases involved all three and very rarely is the third one by itself. Hyperactivity is usually the first symptom to be noticed, since it is obvious at an age when not much sustained attention or impulse control is expected. These children may be difficult to hold and soothe even as infants. They run almost as soon as they can walk. Later when they are to stay required to stay still, for example in the classroom, they cannot stay still and always have to be doing something other than what is expected of them. Most of these hyperactive children are also impulsive. They cannot wait their turn when doing things and do not think before they act on something. In conversation, they interrupt, talk to much, too loud, and too fast, and just say whatever they are think of without thinking it out first. They mess with their parents, teachers, and other children. They are clumsy and accident-prone. When not in motion or action on impulse, children with ADD are often distracted and daydreaming. They are never on time and give the impression of paying little attention to what others say and do.