Britannica
Sources used in this answer
How likely is a child with ADHD to have a sibling who also has the condition?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
attention-deficit/hyperactivity disorder
Learn how the popular behavior-modifying amphetamine Adderall works.
Research indicates that attention-deficit/hyperactivity disorder (ADHD) is at least partly hereditary. Regarding familial prevalence, approximately 35 percent of children diagnosed with the condition have a sibling who is also affected.1