Attention Deficit Hyperactivity Disorder

Attention-deficit hyperactivity disorder (ADHD) is the name of a group of behaviors found in many children and adults. People who have ADHD have trouble paying attention in school, at home or at work.
They may be much more active and/or impulsive than what is usual for their age. These behaviors contribute to significant problems in relationships, learning and behavior.
For this reason, children who have ADHD are sometimes seen as being "difficult" or as having behavior problems. ADHD is more common in boys than in girls.
Compiled from the following sources:
Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition TR (2000) American Psychiatric Association.
American Academy of Pediatrics, Clinical Practice Guidelines (2001)
American Academy of Child and Adolescent Psychiatry, Practice Parameter for the Use of Stimulant Medication (2002)
NIMH, A 14 month Randomized, Clinical Trial (1999)
NIMH Treatment Study Follow-Up: 24 month outcomes (2004)
RA Barkley & KR Murphy (2006) Attention Deficit Hyperactivity Disorder: A Clinical Workbook (3rd ed). New York: Guilford Publications