General education

ADHD, in plain language

ADHD (attention-deficit/hyperactivity disorder) is a neurodevelopmental condition that can shape attention, activity level, impulse control, and skills such as planning and organization.

Broad areas of experience

People may describe differences in sustaining attention, managing activity or impulses, and organizing or following through. These are broad areas for understanding the topic, not a self-screening checklist. A single behavior does not establish ADHD.

Experiences can vary

People’s experiences differ, and their needs can depend on their age, environment, and circumstances. Attention, activity, and organization can also be affected by sleep, stress, mental or physical health, and other life factors. Studies may look at different groups and use different methods, so a short overview cannot capture an individual person or settle every question in the evidence.

What this overview cannot tell you

Similar experiences can have other explanations, and several factors may overlap. A qualified health professional can consider a person’s history, context, and possible explanations as part of an appropriate assessment. This page cannot determine whether someone has ADHD.

Cited evidence

  • The World Federation of ADHD International Consensus Statement: 208 Evidence-based conclusions about the disorder

    Publication date
    Evidence type
    International consensus statement and review

    This international consensus summarizes evidence about ADHD’s nature, course, outcomes, causes, and treatments. It gives broad topic context; it cannot describe any one person’s experience.

    Read source at PubMed

  • Clinical Practice Guideline for the Diagnosis, Evaluation, and Treatment of Attention-Deficit/Hyperactivity Disorder in Children and Adolescents

    Publication date
    Evidence type
    Clinical practice guideline

    For children and adolescents, the guideline describes evaluation using diagnostic criteria, information from more than one setting, and consideration of other possible causes or conditions.

    Read source at American Academy of Pediatrics

  • Executive function in children with neurodevelopmental conditions: a systematic review and meta-analysis

    Publication date
    Evidence type
    Systematic review and meta-analysis

    This review combines 180 studies of children with several neurodevelopmental conditions, including ADHD. Its group-level findings help explain why attention and planning are discussed, but do not describe every child.

    Read source at PubMed Central