A parent leaves a meeting with a new word for their child: ADHD.
The relief is often immediate.
At last, the behaviour has a name.
The restlessness. The unfinished tasks. The drifting attention. The sudden frustration.
What had felt messy and impossible to grasp now fits inside a recognised frame.
And with that frame comes reassurance:
It is largely genetic.
This is how their brain is wired.
It is not something you caused.
That reassurance matters.
It can replace blame with compassion.
It can bring coherence where there had only been confusion.
It can open doors to support, accommodation, and, when needed, treatment.
But it can also do something quieter.
It can change the direction of the question.
Once a child’s difficulties are understood as something largely inborn, the search for cause begins to recede.
The question shifts from what is shaping this child? to how do we help this child live with what they are?
That shift would make sense if the science had established ADHD as a fixed biological disorder with clear boundaries, stable markers, and a single well-understood cause.
It has not.
What the science shows is something more complicated.
ADHD is real.
It can be impairing.
Biology matters.
Genetics matter.
That is not the same as saying the condition is genetically fixed.
But that is the clear implication.
That distinction matters.
What happens when we treat a child’s difficulties as fully fixed?
We stop looking for the foundational conditions.
Those conditions that intensify, stabilise, or sometimes relieve them.
For years, ADHD has been described as highly heritable.
That is true as far as it goes.
Twin and family studies have repeatedly found a substantial genetic contribution.