My brother has a big stuttering problem?

[Nghia]

Well I don't know if there is a cause for stuttering because I suffer from it as well. I still suffer from stuttering since I was in kidagarten and now I am 24 years old. I used to stutter like a chainsaw but now I don't stutter as much because back then my parents would make me read aloud such as poetry or books. This helped me get used to saying the letters that suffered through the most to saying it properly and clearly with one try. I hope this helped and good luck!