About 5% of the children and 2.5% of the adults are diagnosed with ADHD. There are several requirements for a diagnosis:There are at least six symptoms for at least six months. For people older than 17 years old, there need to be five or more symptoms.The symptoms are present before the 12th year of age.The symptoms exist in two or more areas (e.g. school; home).The symptoms interfere with social, school or professional functioning.The symptoms are not better explained by other disorders.There are three subtypes:Predominantly inattentive subtype (i.e. ADD).Careless attention to detail.Problems sustaining attention over time.A poor follow-through (e.g. schoolwork; homework; chores).A poor ability to sustain mental attention (e.g. independent work at school).The child loses necessary materials (e.g. assignment sheets).The child is forgetful.The child is easily distracted.The child is poorly organized.The child does not appear to listen.Predominantly hyperactive/impulsive subtypeThe child demonstrates fidgety or squirmy behaviour.The child has problems remaining seated.The child shows excessive motion.The child has problems engaging in quiet play.The child is constantly on the go.The child shows incessant talking.The child blurts out answers or comments (i.e. impulsivity).The child is impatient and has problems with turn-taking (i.e. impulsivity).The child is intrusive to others (i.e. impulsivity).Combined subtype.Children with the inattentive presentation are often misdiagnosed and misunderstood. It is often misinterpreted as a lack of motivation. The children may be characterized by a sluggish information processing style and there are problems with focused or selective attention. These children are unable to filter essential from non-essential details. This lack of attention may result from information overload and the inability to selectively limit the focus of attention. They have poor performance on...