Published online by Cambridge University Press: 20 August 2018
Attention-deficit hyperactivity disorder (ADHD) is a fact of culture rather than a fact of nature. For a diagnosis like ADHD to be scientifically useful you need to show that the concept leads to advancement of knowledge around causes. For it to be clinically useful, you need to show that use of the concept leads to improved clinical outcomes. As neither can be convincingly demonstrated, ADHD is unlikely to be either scientifically or clinically useful and the concept is well past its use-by date.