ADHD: Symptoms, Causes & Treatment - WebMD
ADHD is the most commonly diagnosed mental disorder in children. Find out the symptoms in children and adults, types, causes, diagnosis, treatment, and outlook.

What Is ADHD - Simply Psychology
ADHD, or Attention Deficit Hyperactivity Disorder, is a neurodevelopmental disorder that affects both children and adults. It is characterized by signs such as difficulty with focus, hyperactivity, and impulsivity.

Attention-Deficit/Hyperactivity Disorder (ADHD) - NIMH
NIMH researches attention-deficit/hyperactivity disorder (ADHD). Find resources on the signs and symptoms of ADHD and potential treatments and therapies.

Attention deficit hyperactivity disorder - Wikipedia
Attention deficit hyperactivity disorder (ADHD) [1] is a neurodevelopmental disorder characterised by symptoms of inattention, hyperactivity, impulsivity, and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and developmentally inappropriate. [8] ADHD symptoms arise from executive dysfunction. [17]

CHADD - Improving the lives of people affected by ADHD
Children and Adults with Attention-Deficit/Hyperactivity Disorder (CHADD) is the nation's leading nonprofit organization serving people affected by ADHD.

Symptoms of ADHD | Attention-Deficit / Hyperactivity Disorder (ADHD) | CDC
Key points ADHD symptoms can present as mostly inattentive, mostly hyperactive-impulsive, or a combination of both types of symptoms. If you think your child might have ADHD, the first step is to talk with a healthcare provider.

ADDitude - ADD & ADHD Symptom Tests, Signs, Treatment, Support
Since 1998, millions of parents and adults have trusted ADDitude's expert guidance and support for living better with ADHD and its related mental health conditions.

Attention-Deficit / Hyperactivity Disorder (ADHD) | CDC
About Read about ADHD, its types, symptoms, possible risk factors, screening, treatment, and CDC's work.

What is ADHD? - Psychiatry.org
Learn about ADHD including symptoms, risk factors, treatment options and answers to your questions.

Attention Deficit Hyperactivity Disorder (ADHD) - NAMI
ADHD occurs in both children and adults, but is most often and diagnosed in childhood. Getting a diagnosis for ADHD can sometimes be difficult because the symptoms of ADHD are similar to typical behavior in most young children.