human
I've heard that there are a number of different types of stutters. What are the most common types?
assistant
The most common types of stutters include developmental, fluency-based, and mixed stutters. Developmental stuttering is a speech disorder that affects children as they develop language skills. Fluency-based stuttering is caused by an individual's difficulty in producing certain sounds or syllables due to anxiety, tension, or fatigue. Mixed stuttering occurs when someone has both developmental and fluency-based stuttering.