Earlier quoted context omitted.
Genetically transmitted brain chemistry may well be involved, but sleep is necessary for all kinds of brain chemistry, too. You can't have one without the other, perhaps .. perhaps, the reason we have the genetic scenario now, is precisely because lack-of-sleep, or at least sleep-culture-effecting-brains, has been an environmental factor over the period of our evolution where such things mattered. I think the entire…
You have completely missed the point. Sleep is good. Get sleep. But people who actually have ADHD do not simply lack sleep. End. Of. Story. Your speculation of lack-of-sleep being the cause of ADHD is laughably wrong. If it were true, then my son wouldn't have the disorder.
But I would say to you this: there are other ways to deal with your problems than to form a dependency with a pharmaceutical company and a consumer-dependent relationship on other high preists of industrialized medicine. I know you won't accept that, given your position on the matter is pretty clear that of one who has succumbed to the problem, but the point of view that ADHD diagnoses and treatment is overly exagerated is an equally valid one.
Your son has a 'disorder' described to you by your high priests. However, maybe he just needs a better way of life, a healthier diet, more interaction, more outside time, less participation in a caustic, chemical society. You wouldn't know that, unless you tried to exceed the imposition of cultural 'normality' imposed on you by your society, by, frankly, leaving it behind.