Attention Deficit Hyperactivity Disorder (ADHD)

ADHD is a problem of not being able to focus, being overactive, not being able control behavior, or a combination of these. For these problems to be diagnosed as ADHD, they must be out of the normal range for a person’s age and development.

Symptoms

Symptoms of ADHD fall into three groups:

  • Not being able to focus (inattentiveness)
  • Being extremely active (hyperactivity)
  • Not being able to control behavior (impulsivity)

Some people with ADHD have mainly inattentive symptoms. Some have mainly hyperactive and impulsive symptoms. Others have a combination of different symptom types. Those with mostly inattentive symptoms are sometimes said to have attention deficit disorder (ADD). They tend to be less disruptive and are more likely not to be diagnosed with ADHD.