This is a great video series in which world renowned ADHD expert Dr Russell A Barkley really really explains ADHD to the layperson. I haven’t watched the entire series yet. I will tell you this. One of the most interesting things Dr. Barkley has explained thus far is how ADHD relates to poor emotional regulation.
He spends considerable time explaining how ADHD differs from something like bipolar disorder. ADHD IS NOT a mood disorder. It’s a developmental problem. The whole thing is incredibly interesting. I’d say if you have ADHD (or if someone in your life does) this should be mandatory viewing.
I would also strongly recommend you look at the ADHD videos channel on YouTube.