Overview
ADHD is a neurodevelopmental disorder that often persists into adulthood, where it shows more as inattention, inner restlessness and impulsivity — procrastination, lost items, missed appointments, interrupting. DSM-5-TR requires several symptoms before age 12, in two or more settings, with clear impairment; fewer symptoms are required from age 17. Overlap with depression, anxiety and sleep problems makes professional assessment essential. Treatment includes stimulant and non-stimulant medication (NICE NG87), CBT or coaching, and environmental supports.
📌 At a glance
- Korea
- 109 (suicide prevention), 1577-0199 (mental health crisis)
- US
- 988 Suicide & Crisis Lifeline
- UK/Ireland
- Samaritans 116 123
- Emergency
- Local emergency number
This article is general information, not a diagnosis or medical advice. If you are concerned, please consult a qualified health professional.
Frequently asked questions
- Can ADHD start in adulthood?
- Symptoms must begin in childhood, but many adults first recognise them later.
References
- American Psychiatric Association. (2022). DSM-5-TR.
- National Institute for Health and Care Excellence. (2018, updated 2019). Attention deficit hyperactivity disorder: diagnosis and management (NG87).
- Faraone, S. V., et al. (2021). The World Federation of ADHD International Consensus Statement: 208 evidence-based conclusions about the disorder. Neuroscience & Biobehavioral Reviews, 128, 789–818.
- 국립정신건강센터. 국가정신건강정보포털(mentalhealth.go.kr), ADHD.