I fully recovered from stuttering at 70! My stuttering was emotionally caused by my repressed anger and resentment from an abusive childhood. Psychotherapy was how I recovered. Not all stuttering has an emotional cause, there are also physical causes such as developmental issues, genetics, brain injury, etc. There’s even a scientist ( research psychiatrist) using medication to successfully treat stuttering. If you're interested: Youtube: ‘Dr. Gerald Maguire’ he’s even also a stutterer! In acquainted with one of his patients who has 99% fluent. Let me know what you think. Best, Sue