[hellogoodby3]

He can't "cure ADHD" because it is a symptom of many different things. He has to diagnose the patient and determine the underlying cause. He gave a list of potential causes that included vision problems, iron deficiency, and sleep problems. I imagine each of these have their own cure which in turn fixes the symptoms of ADHD. You are implying that ADHD only has a single cause, the author is disagreeing with you.

[darkarmani]

You and the author are both talking as if ADHD exists which counters his book title. I'm not the one making the bold claim -- the author is in his title.

[MBCook]

The claim is that ADHD __as currently defined__ does not exist. That's very different from "no one is suffering from these clusters of symptoms".