This disorder is characterized by serious and persistent difficulty resulting in the following:

1. Poor attention span.

2. Weak impulse control.

Hyperactivity (not in all cases). The characteristics usually appear during early childhood (before seven years of age) is chronic, and should last at least six months. Individuals with ADHA usually experience difficulty with attention and learning, which can lead to subsequent problems in social skills, self-esteem, and behavior. It is estimated that of school-aged-children suffer from ADHD, and 2-4% of adults have ADHA. What obscures the pictures and makes the diagnosis process of ADHD difficult is that many children with ADHA can pay their attention (or sit motional-less) for a limited period of time. Their ability to do that depends on one of the following four characteristics they live in or encounter: novelty of the situation. a high degree of longing. Intimidation and scare . Sitting individually with an adult. Their hyperactivity impedes their social interactions. When those children are frustrated they start yelling at other children, and sometimes they hit their peers or push them to fall down in an attempt to reach their goals.