Do some adults "outgrow" their stutter?

 This is a very complex disorder with neurological and psychological components. We tend to bunch the disorder into two broad categories: "developmental" (from childhood) and "neurogenic" (due to accidental neurological damage), but the disorder manifest itself with very different degrees of severity and possibly life courses. It is a simple fact that aging can affect both neurology and psychology of individuals, and it can provide the time to work on ways to adapt to the problem. I have worked on my stutter and I coach people on approaches that have been helpful to me. I stutter rarely right now (and I am "old"). That being said I cannot say for sure that my recovery was NOT due simply to aging. Chances are it was a combination of both aging and working on it.... Bottom line: It is possible that some will simply "outgrow" stuttering in adulthood, as most kids do, but that's certainly not an outcome that can be relied on for most stutterers, unfortunately.