Comment by bbor

...ok. Well. Responding politely on the offchance that you mean well and were just in a bit of a rush:

1. You are not necessarily "born with" ADHD. That's certainly a very plausible explanation, but ADHD is a disorder defined solely for diagnostic reasons, using only collections of symptoms; unlike a typical physical disease, no internal mechanisms or underlying causes are posited, on purpose. So saying with confidence that you can never develop it during lifetime is just invalid, putting aside the more philosophical discussions of nature v. nurture and free will that would come up if that roadblock were ever cleared.

2. In the new DSM5-defined paradigm, the three "presentations" of ADHD are assumed to present at different times at different intensities through the typical sufferer's lifespan, with the prototypical progression being Hyperactive-Impulsive or Combined in childhood that leads into Inattentive in adulthood. This is far from absolute, or at least it's supposed to be -- sadly many US psychiatrists still insist on seeing evidence of hyperactivity in childhood before trying out an adult ADHD diagnosis, based mostly on outdated, partial advice from the DSM4.

3. As the flipside of #1, it can also go away without explanation or reason, i.e. go into "remission"; I don't care to gather data on common that is, but I can say with absolute certainty that it cannot be ruled out. That's just how DSM-defined mental health disorders work on a fundamental level.

4. Either way, none of that is relevant to the question of how prevelant it is overall, which is simply a matter of empirical measurement. Without looking it up, I feel confident that it's well below 50%, so objectively "rare" in some sense.

5. I feel like the "some people just get better at managing it" thing is some personal axe you're grinding about people who are virtuous enough to just grit their teeth through psychiatric disorders vs. those who use drugs to cheat. If not: sorry! If so: please don't do that.

Finally, the "edit" button is inline, it just disappears after some amount of time for some odd reason. HN UI never fails to confuse me, as well!