Fact: here are more than 100,000 articles in science journals on ADHD (and its precursor labels) and references to it appear in medical textbooks going back to 1775.
We periodically hear in the mainstream media that some pundit, expert, or celebrity has declared ADHD to be a myth. That was even the name of a trade book that Richard Saul published a few years ago. This nonexistence of ADHD is often uttered with great confidence, yet nothing could be further from the truth.