I must admit that it was a little difficult to understand. Basically the cause of stuttering is to be found in the mechanism of composition and pronunciation of syllables instead of neurological problems, and that any neurological problems are only an effect of stuttering and not the cause? During my therapy with a speech therapist, we focused precisely on the pronunciation of the syllables and letters at the beginning of each word, since that is where the phenomenon occurs most (although there are words that make me stutter in the middle, for example, "uni-versity"). The exercises were those given to children: lists of words beginning with the same syllable, consisting of the letters that gave me the most trouble, and the exercise consisted of pronouncing the word while stressing my jaw, facial muscles, tongue, etc. as little as possible; in case of difficulty, it was required to pronounce the syllable by "lengthening" its pronunciation, again with the aim of reducing the stress applied.