Comment by sandspar

ADHD is the latest in a very long line of "vaguely applies to everyone" diagnoses. The history of psychology is full of them. Asperger's was in vogue a few years ago, chronic fatigue syndrome is for people who like scary diagnoses, irritable bowel is one with a reputational devil may care, codependency is a bit antique, long COVID is topical. Any sufficiently motivated person can diagnose themselves with these. And boy are there motivations: have one of them and you instantly become special. (And yes before anyone says it, there are many genuine cases.)