I used to say something quite confidently: ADHD is not a disorder. It is a difference.
I still understand why I said it.
As a neurodiversity consultant, ADHD coach and someone with ADHD myself, I have seen how much damage can be done when people grow up believing that the way their brain works is fundamentally wrong. I have worked with intelligent, capable adults who arrive in coaching carrying decades of evidence, in their minds, that they are somehow inadequate.
They are too disorganised. Too emotional. Too inconsistent. Too much. Not disciplined enough. Not productive enough.
Many have spent years trying to correct themselves.
So challenging the word disorder felt important to me.
It still does.
But the more people with ADHD I work with, the less convinced I am that replacing disorder with difference tells the whole story.
Because some of my clients aren’t simply struggling because society doesn’t understand their different way of thinking. They can struggle to feed themselves regularly, answer important emails, manage money, sleep, regulate emotions, maintain relationships or begin tasks they desperately want to do.
A more accommodating workplace can help enormously.
It cannot necessarily solve all of that.
At the same time, I have seen people who appeared profoundly impaired in one environment function remarkably well when their circumstances changed.
So perhaps the question isn’t:
Is ADHD a disorder or a difference?
Perhaps we need to ask something much more useful:
What is actually disabling this person?
Clinically, ADHD Is a Disorder
Let’s start with something that sometimes gets lost in neurodiversity conversations.
ADHD is currently classified as a neurodevelopmental disorder in international diagnostic systems. The World Health Organization’s ICD-11 places ADHD within neurodevelopmental disorders, and diagnosis requires a persistent pattern of inattention and/or hyperactivity-impulsivity that has a significant negative impact on functioning.
That clinical framework matters.
Diagnosis can give people access to medication, treatment, workplace adjustments, educational support and, perhaps just as importantly, an explanation for difficulties they may have spent years blaming on themselves.
I see the importance of that explanation repeatedly in my coaching work.
For someone who has spent forty or fifty years believing they are lazy, unreliable or incapable of fulfilling their potential, discovering ADHD can fundamentally change the story they have been telling themselves.
The diagnosis says: there is a reason this has been difficult.
That can be enormously powerful.
But a clinical diagnosis was designed to identify a condition and determine when someone may need support or treatment. It was never designed to describe the whole person.
And that is where the problem begins.
A Diagnosis Is Useful. It Is Not an Identity Verdict.
The word disorder can easily travel much further than the consulting room.
It can quietly become:
There is something wrong with my brain.
And from there:
There is something wrong with me.
Many adults I work with don’t come to coaching simply because they cannot organise their calendars.
They come carrying years of self-criticism.
They tell me:
“I should be able to do this.”
“Everyone else manages.”
“I have so much potential. Why can’t I use it?”
“I don’t understand why everything is so difficult.”
Often, one of the most important parts of our work is separating difficulty from deficiency.
Something can genuinely be difficult for you without that difficulty proving that you are inadequate.
That distinction matters enormously.
But we also need to be careful not to replace one simplistic story with another.
“Difference, Not Disorder” Can Also Exclude People
The neurodiversity movement has brought an essential correction to the traditional deficit model.
Human brains vary.
There is no single correct way for a brain to pay attention, process information, respond to stimulation, communicate, learn or organise itself.
ADHD characteristics exist within that wider human neurological variation.
But sometimes neurodiversity advocacy moves from:
Different does not mean defective
to:
ADHD is only a difference.
Those are not the same statement.
And I increasingly think the second one can be just as excluding as the medical model it is trying to challenge.
Imagine someone whose ADHD contributes to repeatedly losing jobs, missing essential appointments, accumulating debt, struggling with basic self-care or experiencing impulsivity that puts them at risk.
If we tell that person that their ADHD is simply a different way of thinking and that society needs to become more accepting, they may quite reasonably reply:
But I need help.
They do.
Recognising ADHD as neurodivergence should never require us to minimise impairment.
A person should be able to say:
“My ADHD is disabling.”
Another should be able to say:
“I don’t experience my ADHD primarily as a disorder.”
And neither should have to invalidate the other.
Even the same person may experience both.
The Environment Changes ADHD – Sometimes Dramatically
This is one of the most striking things I have learned through coaching.
The same person can look almost incapable in one environment and exceptionally capable in another.
Consider two adults with similar ADHD characteristics.
One works in a traditional administrative job. Their day involves repetitive processing, constant email monitoring, detailed paperwork, frequent interruptions and an expectation that productivity should remain relatively consistent between nine and five.
They struggle enormously.
They procrastinate. Make mistakes. Miss details. Work late to compensate. Become anxious. Start believing they are simply not very competent.
Now imagine that person in work organised around shorter projects, autonomy, problem-solving, movement, collaboration and periods of intense activity followed by recovery.
Their ADHD hasn’t disappeared. But their level of impairment may change dramatically.
I have seen versions of this repeatedly.
People who have spent years asking, “What is wrong with me?” sometimes need to ask a completely different question:
“What is it about this environment that makes functioning so difficult for me?”
That question can change lives.
Schools provide another obvious example.
A child who struggles to remain seated, suppress movement, listen passively and maintain attention through repetitive instruction may be considered highly impaired in one classroom.
Put that same child into an environment involving movement, practical experimentation, interaction and genuine curiosity, and we may see a very different child.
The difficulty was real.
But the environment was part of the difficulty.
But We Shouldn’t Blame Everything on the Environment Either
This is where I think neurodiversity conversations need greater honesty.
It is tempting to argue that ADHD becomes a disability primarily because society is designed for neurotypical people.
There is considerable truth in that.
Our schools, workplaces and even ideas about productivity privilege particular kinds of attention, organisation, emotional regulation and consistency.
But change the environment completely and some ADHD difficulties may remain.
The freelancer who loves unpredictable projects may still forget to eat.
The entrepreneur who thrives on novelty may still be unable to open an important letter.
The creative professional who rejected the nine-to-five may still struggle with sleep, emotional regulation, impulsivity or keeping their home functioning.
A supportive environment can reduce disability enormously.
It cannot always remove impairment.
That distinction matters because otherwise we risk creating another impossible standard for ADHD people:
If you were truly accepting of your neurodivergence, you wouldn’t want to change anything.
I don’t believe that.
There is nothing contradictory about accepting your brain and wanting some things to become easier.
There is nothing anti-neurodiversity about taking ADHD medication.
There is nothing shameful about needing substantial support.
And there is nothing inherently more enlightened about struggling without it.
Perhaps Disability Lives in the Interaction
I increasingly find it more useful to think about ADHD not as something located entirely inside the person, or entirely outside them in society, but in the interaction between the two.
A person’s functioning can depend on many things:
their neurological characteristics, the demands being placed upon them, their physical and emotional state, the amount of support available, their relationships, sleep, stress, financial security, sensory environment, autonomy, interest, predictability and what else is happening in their life.
This helps explain something that confuses many ADHD adults.
“Why could I manage this five years ago, but I can’t manage it now?”
They often interpret that change as evidence that they have become lazy or somehow weaker.
But perhaps the person hasn’t fundamentally changed.
The load has.
A job became more demanding.
Children arrived.
Hormones changed.
A parent became ill.
Sleep deteriorated.
Responsibilities accumulated.
The scaffolding that had quietly been keeping everything together disappeared.
Suddenly strategies that worked for years no longer work.
Looking only at the individual’s “symptoms” can miss this entirely.
Stop Asking Whether Someone Is High or Low Functioning
This is also why I am increasingly uncomfortable with broad ideas of being “high functioning”. Some of the adults I work with are extraordinarily accomplished. They run businesses. Lead teams. Raise families. Complete advanced degrees. Work in highly responsible professions.
From the outside, they are functioning exceptionally well.
Then we look at the cost. They may be working at night because they couldn’t start during the day. Using anxiety to generate enough urgency to function. Recovering all weekend. Avoiding friendships because there is no energy left. Creating elaborate organisational systems because everything feels as though it will collapse without them. Living with a constant internal commentary about not doing enough.
Their achievements are real.
So is their impairment.
The better question isn’t:
“How well is this person functioning?”
It is:
“What does functioning require from them?”
That is a very different conversation.
ADHD Doesn’t Need a Positive Rebrand
I also think we need to be careful about another response to the deficit model: turning ADHD into a collection of strengths.
ADHD discussions often emphasise creativity, entrepreneurial thinking, energy, spontaneity, hyperfocus and innovation.
Some ADHD people absolutely recognise themselves in those descriptions.
Others don’t.
And they shouldn’t have to.
We don’t need to prove the value of ADHD people by demonstrating that their difficulties are secretly compensated for by exceptional talents.
ADHD does not have to be a superpower to deserve acceptance.
An ADHD person who isn’t unusually creative, entrepreneurial, funny, energetic or successful deserves exactly the same respect as one who is.
The alternative to saying “ADHD is a deficit” is not saying “ADHD is a gift.”
It is saying:
An ADHD person is a human being whose brain brings a particular combination of characteristics, capacities, difficulties and needs – and that combination will look different in every individual.
Some characteristics may become strengths in particular contexts. The same characteristics may become difficulties somewhere else.
And some difficulties may simply be difficulties.
We don’t have to turn them into gifts.
What I Am Learning From My Clients
Perhaps the biggest change in my own thinking has come not from reading another definition of ADHD, but from listening to people living with it.
Again and again, coaching brings me back to context.
When does this person function well?
When do things fall apart?
What are they doing when they feel most alive?
What drains them disproportionately?
What are they forcing themselves to do simply because they believe adults are supposed to be able to do it?
What have they interpreted as personal failure that may actually be an unmet need?
And equally:
What genuinely causes them difficulty even when nobody is judging them?
That last question is important.
Because good neurodiversity practice should not begin with a predetermined answer. If we decide in advance that every difficulty is caused by ADHD pathology, we will miss the environment. If we decide that every difficulty is caused by an inaccessible society, we will miss the person.
My role as a coach is not to convince somebody that ADHD is either a disorder or a gift.
It is to help them understand their ADHD.
Sometimes that means changing expectations.
Sometimes changing an environment.
Sometimes developing skills.
Sometimes building external structures.
Sometimes seeking medical support.
Sometimes doing less.
And sometimes recognising that the way they have been trying to live simply doesn’t fit them very well.
So, Is ADHD a Disorder?
Clinically, yes. ADHD remains classified as a neurodevelopmental disorder.
But is disorder the only useful way to understand ADHD?
I don’t think it is.
Interestingly, this tension is increasingly being acknowledged within mainstream services too. NHS England’s independent ADHD Taskforce notes that it does not necessarily endorse the word “disorder”, despite using it because it remains part of current diagnostic classification. It also recognises that people with lived experience use and prefer different terminology.
Perhaps we should take something important from that.
We don’t need one word to do every job.
Disorder can describe a clinical category.
Disability can describe substantial barriers or impairment.
Neurodivergence can describe difference from dominant neurological norms.
ADHD can be part of someone’s identity.
None of these words tells us everything about the person standing in front of us.
And perhaps that is the point.
The Question I Think We Should Be Asking Instead
I no longer think we make ADHD more humane simply by crossing out disorder and writing difference in its place.
We make our understanding more humane by becoming much more curious.
Instead of asking:
“What is wrong with this person?”
we can ask:
“What is making life difficult for this person?”
Sometimes the answer will be ADHD itself.
Sometimes it will be an inflexible workplace, an unsuitable school, impossible expectations, chronic stress or years of masking.
Usually, I suspect, the answer will be more complicated than either.
And that complexity matters.
Because once we understand where the difficulty actually sits, we can stop trying to make every ADHD person more “normal” and start asking what would genuinely help.
Sometimes the person needs to develop new strategies. Sometimes the environment needs to change. Sometimes they need treatment. Sometimes they need accommodations.
Sometimes they need permission to stop measuring themselves against a standard that was never particularly meaningful in the first place.
And very often, several of those things are true at once.
Perhaps the goal was never to prove that ADHD is not a disorder.
Perhaps the goal is to reach a point where having a disorder, disability or neurological difference tells us absolutely nothing about a person’s worth and where support is based not on making people more normal, but on understanding what they actually need to live well.
