U.S. Health Care Professionals

Background on ADHD

Attention-Deficit/Hyperactivity Disorder (ADHD) is a complex disorder with numerous potential contributing factors. Depending on your background, you may wish to read more about ADHD with respect to the following:


Presents a brief introduction to ADHD, including data on its estimated prevalence by age.


What is ADHD

Discusses how the disorder is defined and what factors are thought to contribute to its development.


What ADHD is Not

Reviews some of the myths and confounding factors potentially associated with ADHD.


Understanding the Neurobiological Basis of ADHD

Summarizes some of the research concerning the brain and ADHD.


Genetic Factors

Explains current thinking with respect to heredity and ADHD.