Topic summary
Stutter
Extracted from the Wikipedia article Stuttering.
Acute nervousness and stress do not cause stuttering but may trigger increased stuttering in people who have the disorder. There is a significant correlation between anxiety, particularly social anxiety, and stuttering, but stuttering is a distinct, engrained neurobiological phenomenon and thus only exacerbated, not caused, by anxiety. Anxiety consistently worsens stuttering symptoms in acute settings in those with comorbid anxiety disorders.