<human>: I've heard that there are a number of different types of stutters. What are the most common types?
<bot>: The most common types of stutters are developmental, neurological, and psychogenic. Developmental stuttering is caused by a combination of physical and environmental factors, such as genetics, brain development, or hearing loss. Neurological stuttering is caused by damage to certain parts of the brain, like the cerebellum. Psychogenic stuttering is caused by psychological factors, such as anxiety or stress.