Le le let me tell you that the first instance of stuttering seen in the word *let *is counted as 2 iterations.. and it is considered as normal .this is one type of dysfluency (sound repetitions) among many. This is even seen in children below 4 years or so.. then it is termed as Normal Non Fluency. read more
It's not surprising that the child with coordination problems of the speaking mechanism cannot maintain conversational rates of speaking without a breakdown (stuttering) if we realize that during conversation we produce approximately 170 words per minute, with each word containing an average of about 3 or 4 sounds, or 10 sounds per second. read more