Attention-Deficit / Hyperactivity Disorder (ADHD) Facts

ADHD is one of the most common neurobehavioral disorders of childhood. It is usually first diagnosed in childhood and often into adulthood. Children with ADHD have difficulty paying attention, controlling impulsive behaviors (can act without thinking about what will be the outcome), and in some cases, hyperactivity.

A child with ADHD might:

• have a hard time paying attention
• daydream a lot
• not seem to listen

Types



There are three different types of ADHD, depending on which symptoms are strongest in the individual:

1. Predominantly Inattentive Type:
2. Predominantly Hyperactive-Impulsive Type:
3. Combined Type:

Causes of ADHD

Scientists are studying the cause (s) and risk factors in an effort to find better ways to control and reduce the chances of a person with ADHD. Factors cause (s) and the risk for ADHD are unknown, but current research shows that genetics plays an important role. Recent studies of twins link genes with ADHD.