The primary symptoms of ADHD are hyperactivity, impulsivity, and inattention.
Hyperactive children always seem to be in motion. A child who is hyperactive may move around touching or playing with whatever is around, or talk continually. During story time or school lessons, the child might squirm around, fidget, or get up and move around the room. Some children wiggle their feet or tap their fingers. A teenager or adult who is hyperactive may feel restless and need to stay busy all the time.
Impulsive children often blurt out comments without thinking first. They may often display their emotions without restraint. They may also fail to consider the consequences of their actions. Such children may find it hard to wait in line or take turns. Impulsive teenagers and adults tend to make choices that have a small immediate payoff rather than working toward larger delayed rewards.
Inattentive children may quickly get bored with an activity if it's not something they really enjoy. Organizing and completing a task or learning something new is difficult for them. As students, they often forget to write down a school assignment or bring a book home. Completing homework can be huge challenge. At any age, an inattentive person may often be easily distracted, make careless mistakes, forget things, have trouble following instructions, or skip from one activity to another without finishing anything.
Some children with ADHD are mainly inattentive. They seldom act hyperactive or impulsive. An inattentive child with ADHD may sit quietly in class and appear to be working but is not really focusing on the assignment. Teachers and parents may easily overlook the problem.
Children with ADHD need support to help them pay attention, control their behavior, slow down, and feel better about themselves.