"the parents of the more than six million children who have been diagnosed with ADHD would likely disagree".<p>Parents don't say this, and it's irrelevant anyways. Parents respond to what schools say, because they trust the "system". ADHD is a natural state of human existence, else you will have to prove that there's some kind of disease being transmitted en mass.<p>The diagnosis doesn't exist across most of the world, and they don't treat it with meth like the U.S. does. Remove kids from u.s. schools they rarely have a problem. Humans are not designed to live in classrooms and "play nice" all day. Humans are animals, especially children.<p>- has ADHD.