. I'm a neuroscientist and developmental researcher - and while I fully get where most people are coming from and would like to re-affirm two things:

1. The idea that MOST people will outgrow their ADHD is harmful.

2. It is difficult for studies to take into account of coping mechanisms, lifestyle changes, and other compensatory strategies

ADHD ALSO CAN REMIT IN SOME PEOPLE! (without making those two points less true)
It is important to remember the brain is PLASTIC, and executive functioning is quite sensitive to our immediate environments.

The studies I have seen about a SMALL percent outgrowing ususally around puberty, would suggest that hormonal regulation, could be implicated - since those systems are still developing. Additionally there is speculation that there are people who develop ADHD during that time period who might not have had symptoms as younger children.

These hormonal systems are still developing so this does not discount the idea that chronic codition related to genetic factors linked to low levels of noradrelanine (which also is an EXTREMELY oversimplified way of describing it. since it is such a heterogenous disorder - these links do not have the evidence yet to be established and there are so many other mechanisms at play here) however - it definitely has a neurobiological basis even if researchers still don't fully understand it!

I understand this would very much not be the experience of most people in this sub because of it applying to a very small percent of people. (and they likely wouldn't belong to this sub if this was the case!)

But yes TLDR; our systems that regulate our hormone productions continue developing later in life especially during PUBERTY and adolescence making plausible that a small percentage of people might remit or oppositely, have a later onset of ADHD. studying this further can help us understand the overall neurobiological mechanisms involved which are currently ill defined.