Since no one else is commenting on this, I'll add a second comment. In my 76 years experience dealing with ADHD, I have found that a useful definition is "diff

Since no one else is commenting on this, I'll add a second comment. In my 76 years experience dealing with ADHD, I have found that a useful definition is "difficulty organizing and sustaining a directed effort". That's 3 points of attack, and that's 3 more than ADHD offers.