The stuttering foundation has published research on this very topic ([here](https://www.stutteringhelp.org/neural-bases-stuttering-and-its-treatment#:~:text=In%20addition%20to%20other%20differences,part%20of%20the%20limbic%20system)). Stuttering is something that can be significantly reduced through various techniques, but there is no scientific evidence that points to being able to “cure” or completely prevent stuttering. There is evidence that increased self esteem and reducing self consciousness if stuttering reduces disfluencies, however that isn’t something that works for everyone.