Attention deficit hyperactivity disorder does not end in childhood. In many adults it persists, affecting work, relationships and the organisation of daily life.
Many adults with ADHD have spent years compensating for difficulties with attention and organisation without knowing why. The right diagnosis can change the way they understand themselves.
What it is
ADHD is a neurodevelopmental condition: symptoms begin in childhood, even if they are only recognised later. It is characterised by a persistent pattern of inattention, of hyperactivity and impulsivity, or of both, that interferes with functioning in more than one setting.
In adults, the visible hyperactivity of childhood often gives way to inner restlessness, difficulty relaxing and a feeling of always being on the go.
Inattention
Hyperactivity
Impulsivity
Since childhood
In more than one setting
The diagnosis requires a persistent pattern, beginning in childhood and affecting more than one area of life.
How it presents
difficulty sustaining attention on long or unstimulating tasks;
chronic procrastination, difficulty starting and finishing tasks;
disorganisation, frequent forgetfulness and losing things;
difficulty managing time and meeting deadlines;
impulsivity in decisions, spending or the way one speaks;
restlessness, difficulty sitting still and a need for stimulation;
rapid emotional shifts and low tolerance of frustration.
Why diagnosis is often delayed
Intelligence, family structure or compensation strategies can hide the difficulties for years. In women, the predominantly inattentive presentation is more common and more easily overlooked. Help is often sought for anxiety, depression, insomnia or burnout, and only then is the underlying ADHD recognised.
Assessment
The diagnosis is clinical. It reconstructs the history of symptoms since childhood, their current impact and the presence of other conditions that can mimic or accompany ADHD, such as anxiety, depression, bipolar disorder, sleep problems or substance use. Whenever possible, hearing from someone close helps complete the picture.
Rating scales and questionnaires can support the process, but no single test makes the diagnosis. Before starting medication, cardiovascular health is also assessed, including blood pressure and heart rate.
Treatment
psychoeducation: understanding ADHD helps reorganise expectations and strategies;
medication: there are stimulant and non-stimulant medicines with proven efficacy in adults, chosen and adjusted individually;
psychological intervention: cognitive behavioural therapy adapted to ADHD works on organisation, time management and emotional regulation;
treating what comes with it: associated anxiety, depression or insomnia are part of the plan.
Symptoms begin in childhood, but they may only be recognised in adulthood, when demands increase and compensation strategies are no longer enough.
Is ADHD medication safe?
When properly indicated and monitored, yes. The choice takes into account cardiovascular health, other conditions and usual medication, and effect and tolerability are reviewed regularly.
Does difficulty concentrating mean I have ADHD?
No. Concentration can be affected by anxiety, depression, lack of sleep, stress or other causes. The assessment is there precisely to tell them apart.
References
National Institute for Health and Care Excellence. Attention deficit hyperactivity disorder: diagnosis and management (NG87). 2018, updated.
Kooij JJS, et al. Updated European Consensus Statement on diagnosis and treatment of adult ADHD. Eur Psychiatry. 2019;56:14–34.
Faraone SV, et al. The World Federation of ADHD International Consensus Statement: 208 evidence-based conclusions about the disorder. Neurosci Biobehav Rev. 2021;128:789–818.
This page is for information only and does not replace an individual medical assessment. Clinical review: Pedro Zuzarte, psychiatrist · Published and reviewed: .