How we understand impairment.
Some people are doing fine on paper and falling apart in private. The career, the relationship, the family, all intact, all at a cost nobody is measuring. Standard scales measure how far you are from the population average. We measure how far you are from yourself.
The same life, measured two ways.
Use the switch. The person has not changed. Only the thing we compare them to has. That single choice is the difference between being turned away and being understood.
Coping.
Compared to the population average, you are at or above the line. The questionnaire records no impairment. This is where most bright, compensating people get told they do not qualify, and sent home.
Severe, and invisible.
Compared to your own hexis, the life you are actually built for, there is a wide gap. That gap is the impairment. And you are holding the middle line up by sheer effort, which is the cost the questionnaire never sees.
What we mean by your hexis.
The condition in which a thing is most fully itself.
It is Aristotle’s word, and English struggles to translate it. A hexis of the body is health. A hexis of the eye is good vision. A hexis of a person is the deep grain of who they are when conditions allow them to be it. It is recognised, not invented. Uncovered, not designed.
Think of an oak. The oak planted in the wrong soil is still an oak. It is alive, it is producing leaves, but it is doing all of it at higher cost, it will not reach its full size, and it is more vulnerable to every storm. The work is not to turn it into a different tree. It is to recognise what it is, and to move it into the soil that suits it.
The gap is the impairment.
Impairment, in this framework, is the distance between the life you would live in your hexis and the life you are actually living. We call it the Potential-Function Gap, and it is the readout the whole assessment is built to find. The Brain Health Model is the engine underneath it, your neurotype, your amplifiers, the demands on you and the supports around you, all deciding whether you can inhabit your hexis right now.
We do not stop at a single number, for the same reason a good doctor does not stop at a pain score. They ask what the pain is stopping you doing, and what it is costing you to keep going. Impairment deserves the same care, so we weigh four things in every part of a life.
What this part of life could be, if it ran from your grain.
What it actually looks like day to day.
What it is taking out of you to hold it there.
How long this can last before something gives.
Why this hits bright neurodivergent adults hardest.
There is a particular cruelty in being told that because you did well at school, or held down a job, you cannot have ADHD or autism. Real impairment, the system assumes, looks like obvious failure. But the bright neurodivergent adult does not fail the same way. They compensate. They spend their cognitive ceiling buying the appearance of normality, using the intelligence to mask the executive difficulties, the social skill to script the conversations, the perfectionism to outwork their own dysregulation.
They look fine because they have organised their whole life around looking fine. The cost shows up everywhere the questionnaire does not look, in the sleep, the gut, the relationships that exhaust them, and a self that has gone quiet underneath the performance.
The cost is not imaginary.
The body keeps the score.
A life lived outside its hexis is not just an unhappy life. Decades of research, across hundreds of thousands of people, show that a clear sense of underlying direction tracks measurable physical health. The size of the effect is roughly comparable to giving up smoking.
lower all-cause mortality in adults with a strong sense of purpose, across more than 130,000 people.
as likely to develop Alzheimer’s disease in those with a clear sense of purpose, over long follow-up.
fewer heart attacks and strokes, lower inflammation, deeper sleep, better recovery from illness.
Where the gap shows up.
We map the gap across eleven domains of a life. Each is either feeding your hexis or starving it. It is common to find one domain carrying nearly all of someone’s aliveness while the rest quietly drain them, a picture no standard scale captures.
Filled, feeding your hexis. Dashed, starving it. This is one person’s picture, ten draining and one keeping them alive.
The diagnosis can be real and the impairment severe.
Even when every questionnaire says you are fine. We measure the distance from yourself, the cost of closing it, and what would let you live closer to your own grain.
Start with a brain health screening
