How helpful is the diagnosis asks neuropsychiatrist Alistair Santhouse at the Cheltenham Literary festival? He is there to discuss Dr Suzanne O Sullivan’s new  book “Age of Diagnosis – how the overdiagnosis epidemic is making us sick”. And I can feel my hackles rising at the thought of ADHD kids under attack again. We teachers know they are little blighters in the classroom, but we also know that ADHD does not affect intelligence, just ability to learn - so they deserve just as much success as other children.