ADHD in Adults
You've spent your whole life feeling like you're trying harder than everyone else just to keep up. You forget things that matter. You start projects with enormous enthusiasm and then can't finish them. You're chronically late, despite genuinely trying not to be. You feel everything more intensely than the people around you seem to.
And yet somehow, nobody ever suggested you might have ADHD.
This is the experience of thousands of adults in the UK who are diagnosed — or who recognise themselves — later in life. ADHD in adults looks very different to the hyperactive eight-year-old boy that most people picture. It's often quieter, more internalised, and far more exhausting.
What is ADHD?
ADHD (Attention Deficit Hyperactivity Disorder) is a neurodevelopmental condition that affects the way the brain regulates attention, impulse control, and executive function. It's not a lack of intelligence or effort — it's a difference in how the brain is wired, particularly in the areas governing focus, organisation, emotional regulation and working memory.
ADHD is significantly more common than most people realise. Current estimates suggest that around 3-4% of adults in the UK have ADHD — though many remain undiagnosed. The ADHD Foundation estimates that as many as 2.6 million people in the UK may have ADHD, with the majority undiagnosed.
Why is adult ADHD so often missed?
Several factors contribute to late diagnosis:
The stereotype is wrong. ADHD awareness has historically focused on hyperactive boys. Adults — and particularly women and girls — often present very differently, with inattentive rather than hyperactive symptoms, and are far more likely to have been overlooked or misdiagnosed.
Masking. Many adults with ADHD have spent decades developing sophisticated coping strategies to appear neurotypical. They may seem organised, high-functioning or even overachieving on the outside — while exhausting themselves internally to maintain it.
It was always there. ADHD doesn't develop in adulthood — it's present from childhood. But for some people, the demands of adult life (careers, relationships, finances, parenting) finally exceed their capacity to compensate, and the difficulties become impossible to ignore.
Comorbidities. ADHD frequently co-occurs with anxiety, depression, sleep difficulties and other conditions. These are often treated without the underlying ADHD being identified.
What does ADHD look like in adults?
ADHD in adults tends to show up differently than in children. Here are some of the most common presentations:
Attention and focus:
Difficulty sustaining focus on tasks that aren't inherently interesting
Hyperfocus on things that are — losing hours to something engaging while important tasks go undone
Mind wandering in conversations, meetings or while reading
Forgetting what you went into a room for, losing things constantly
Difficulty starting tasks, even ones you want to do (task initiation difficulties)
Organisation and time:
Chronic lateness despite genuine effort not to be
Time blindness — a poor sense of how much time is passing or how long things will take
Difficulty prioritising — everything feels equally urgent, or nothing does
Starting many projects and finishing few
Struggling with admin, paperwork, emails
Emotional regulation:
Intense emotional responses that feel disproportionate
Rejection sensitive dysphoria (RSD) — an extreme emotional response to perceived criticism or rejection
Mood that shifts quickly and unpredictably
Frustration and irritability when overwhelmed or interrupted
Difficulty letting go of things that have bothered you
Impulsivity:
Interrupting or finishing other people's sentences
Making decisions quickly without fully thinking them through
Spending impulsively
Saying things without filtering
Physical restlessness:
Difficulty sitting still, needing to move
Fidgeting, leg bouncing, tapping
Difficulty with sleep — particularly switching the brain off at night
ADHD in women
Women with ADHD are diagnosed on average several years later than men, and are significantly more likely to have been misdiagnosed with anxiety or depression first. This is partly because the inattentive presentation — daydreaming, disorganisation, emotional sensitivity — is more common in women and less likely to be flagged as problematic in childhood.
Many women describe finally receiving a diagnosis as both a relief and a grief — finally understanding decades of struggle, but also mourning the support they didn't receive.
If you recognise yourself in this description, you're not alone — and it's never too late to get support.
ADHD and anxiety
ADHD and anxiety frequently co-occur — and it's not hard to see why. A brain that struggles with organisation, time management and emotional regulation is also a brain that has a lot to worry about. Many adults with ADHD develop anxiety as a secondary condition — the result of years of trying to keep up, making mistakes, and feeling like they're constantly falling short.
It's important to treat both, rather than assuming that managing one will automatically resolve the other.
Does ADHD look different with PDA?
For some people, ADHD presents alongside Pathological Demand Avoidance (PDA) — a profile on the autism spectrum characterised by an extreme need to avoid everyday demands and expectations. PDA can make conventional ADHD strategies less effective, and requires a different approach focused on autonomy and reducing demand rather than structure and routine.
Getting a diagnosis
If you think you might have ADHD, the first step is to speak to your GP. You can request a referral for an ADHD assessment via the NHS, though waiting lists are currently long in many areas. Private assessment is also available and significantly faster.
Useful resources:
What can help — beyond diagnosis
A diagnosis is validating and important — but it's just the beginning. Many adults find that understanding their ADHD is one thing; learning to work with their brain rather than against it is another.
Support that many adults find helpful includes:
ADHD coaching — working with a specialist coach to develop strategies for the specific areas causing most difficulty, whether that's time management, emotional regulation, task initiation or relationships. ADHD coaching takes a practical, forward-focused approach that works with your brain rather than trying to impose neurotypical systems on it.
Hypnotherapy — clinical hypnotherapy can be particularly helpful for the anxiety, sleep difficulties and emotional dysregulation that often accompany ADHD. Working at the level of the nervous system, it can help calm the hypervigilance and overwhelm that many ADHD adults experience. Read more about ADHD hypnotherapy.
Medication — stimulant and non-stimulant medications are available via psychiatry and can be highly effective for many people. This is a conversation to have with your GP or psychiatrist.
Nervous system regulation — many adults with ADHD have dysregulated nervous systems, and practices that support regulation (exercise, sleep, nutrition, mindfulness) can make a significant difference to day-to-day functioning.
Working with me
I'm Ros Dodd — a clinical hypnotherapist and ADHD coach based in Leatherhead, Surrey, working with adults and young people with ADHD and neurodiversity both in person and online.
My interest in ADHD is both professional and personal. I bring genuine understanding of the neurodivergent experience to this work — not just theoretical knowledge — alongside specialist training and over 2,000 client hours of experience.
I offer a free 20-minute initial call for all new clients. It's a chance to talk about what's going on and find out whether working together feels right.
Further reading on this site:
ADHD and Anxiety — Why They So Often Go Together (coming soon)
Time Blindness in ADHD (coming soon)
PDA — What It Is and How We Can Help (coming soon)
