As much as i had horrible stutter when younger, and as much as it lingers to some degree today (and the "blocks" are a daily occurrence), .... I know my ADHD has a lot to do with my stammering/stumbling over my words/speech today My brain runs at a pace that my mouth can't keep up with! Sometimes i can be talking soooo fast that i almost want ALL THE WORDS to come out at the same time! Like those multicolored pens! Trying to click down each color at the same time - BLOCKS ALL COLORS from coming out! The pen is pretty much useless at that point! Only found out i have ADHD about 1 yr ago (59m) and only started meds about 4 months ago. However, i can now (7/10) recognize when I'm speaking a mile a min., and can stop myself, regroup... slow it down!