About ADHD

What is Attention Deficit Hyperactivity Disorder (ADHD)?

ADHD is a collection of behavioural symptoms that affects concentration, attention and impulsivity.

Symptoms often present in early childhood and may be difficult to distinguish from usual behaviour in children under school age. ADHD is an official and classified condition listed in the Diagnostic and Statistical Manual, Firth edition (DSM-5). For more detail about symptoms required for diagnosis, check the diagnosis page.

ADHD may also be present alongside other conditions such as autism, Aspergers and anxiety.

You can find out more about research into ADHD on the NCMH research champion’s webpage.


NHS direct

Mental Health Foundation

The Hyperactive Children’s Support Group


Royal College of Psychiatrists

CHADD (based in the US)

Attention Deficit Hyperactivity Disorder (ADHD) – separating facts from fiction from Richard Stanton on Vimeo.