R&E will close on the 28th December - see this thread. https://www.religionethics.co.uk/index.php?topic=22932.0#new
https://www.newscientist.com/article/mg25834372-000-adhd-whats-behind-the-recent-explosion-in-diagnosesFashion, to some extent. There are fashions in illnesses, as in other things. ADHD is a real condition, and no doubt somewhat disabling for sufferers, but, as with some other conditions, I suspect that far more people think they've got it (or, more worryingly, think their kids have - Munchausen's by proxy) than actually have.