I believe ADHD exists. I've worked with children who have moderate/severe ADHD and it is very apparent. What I'm skeptical about is the rise in ADHD cases only

I believe ADHD exists. I've worked with children who have moderate/severe ADHD and it is very apparent. What I'm skeptical about is the rise in ADHD cases only diagnosed in adulthood. I think there are likely other explanations for it rather than ADHD.