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Topic

ADHD

Also known as Attention deficit hyperactivity disorder, Attention-deficit/hyperactivity disorder, ADD, Adult ADHD

A largely inherited difference in self-regulation of attention, activity and impulses.

At a glance

Also on this page: Key facts · Links · Sources · Related pages

Why it matters

Key facts

In short
Excessive, impairing inattention, hyperactivity, impulsivity and emotional dysregulation from executive dysfunction1
Diagnosis
Symptoms for 6+ months in 2+ settings, several before age 12; 5 symptoms needed from age 17, 6 before1
Causes
Primarily genetic, heritability 70–80%; early prenatal or postnatal environmental risks1
In adults
An estimated 2.58% of adults have persistent ADHD and 6.76% have symptoms1
Evidence
Network meta-analysis of 133 trials: methylphenidate preferred in children, amphetamines in adults, short term3
First described
George Still, lectures to the Royal College of Physicians, 19021

In plain words

  1. A self-regulation problem1

    Difficulties with time management, inhibition, starting tasks and sustained attention drive the everyday problems.

  2. On a spectrum1

    ADHD is the extreme low end of a continuous trait of executive function and self-regulation, not a separate category.

  3. Hyperfocus1

    Trouble stopping an ongoing activity, even when you want to, is the flip side of poor sustained attention.

  4. Three presentations1

    Mainly inattentive, mainly hyperactive-impulsive, or combined; DSM-5 treats these as presentations that can change over time.

What the presentations look like in adults

  1. Inattentive: losing focus4

    Struggling to pay attention through meetings, lectures or long reading, or drifting to unrelated thoughts in the middle of a conversation.

  2. Inattentive: organisation and deadlines4

    Trouble organising work documents and belongings, scheduling time and meeting deadlines; putting off reports and long papers.

  3. Inattentive: losing and forgetting4

    Repeatedly misplacing documents, glasses, wallets, keys or phones, and forgetting bill payments, chores or appointments.

  4. Hyperactive-impulsive: restlessness4

    Leaving one's seat during a meeting or lecture, fidgeting or tapping hands or feet, or simply feeling restless.

  5. Hyperactive-impulsive: talking and interrupting4

    Talking a lot, blurting out answers, finishing other people's sentences, interrupting, and finding it hard to wait one's turn.

  6. Accommodation: time management5

    Common workplace accommodations include to-do lists, help with prioritising, meetings to clarify expectations, and timers, apps and calendars.

  7. Accommodation: distraction5

    A quiet workspace, noise-cancelling headphones or white noise, uninterrupted work time, and working from home when the office can't be adapted.

  8. Accommodation: memory and organisation5

    Written instructions, reminders, colour-coded materials, and calendars and planners.

  9. Accommodation: restlessness5

    Structured breaks as a physical outlet, a private workspace, or a job coach to teach and reinforce techniques.

Adult ADHD

  1. It looks different1

    Children climb and run; adults more often feel unable to relax, talk a lot, act impulsively or seek sensation.

  2. Persistence1

    About 15% of children with ADHD still meet full criteria at 25, and 50% still have some symptoms.

  3. Under-diagnosed1

    Most adults with ADHD remained untreated as of 2010; it is also overlooked in girls and women.

  4. Diagnosis needs childhood1

    Adult diagnosis generally requires symptoms since childhood, sometimes recalled with tools like the Wender Utah Rating Scale.

What the research says

  1. Medication works best1

    Stimulants are first-line; about 70% respond to the first stimulant tried.

  2. Adults3

    Amphetamines, methylphenidate, bupropion and atomoxetine beat placebo in adults; long-term effects need more research.

  3. Psychological help2

    CBT, psychoeducation, behavioural strategies and coaching help adults organise daily life, especially alongside medication.

  4. Behavioural therapy first for some1

    Behavioural therapy is first-line for mild symptoms and preschool children; parent training helps behaviour problems.

  5. What lacks support1

    Exercise and diet changes have no proven benefit for core symptoms, and neurofeedback is controversial.

Debates

  1. Over- or under-diagnosis1

    Diagnosis has risen since the 1970s; youngest children in a class are diagnosed more, suggesting subjectivity, while adults may be under-diagnosed.

  2. Social construct view1

    Some, such as Thomas Szasz, argue the line between normal and disordered behaviour is socially set.

Connections

Sources

  1. Attention deficit hyperactivity disorder (Wikipedia) (opens en.wikipedia.org)
  2. Adult attention deficit hyperactivity disorder (Wikipedia) (opens en.wikipedia.org)
  3. Cortese S et al. Comparative efficacy and tolerability of medications for ADHD, Lancet Psychiatry 2018 (PubMed) (opens pubmed.ncbi.nlm.nih.gov)
  4. DSM-5 Criteria for ADHD: How Is Adult ADHD Evaluated? (ADDA) (opens add.org)
  5. Attention Deficit/Hyperactivity Disorder (ADHD) (Job Accommodation Network) (opens askjan.org)

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