Thank you for the extensive response. You asked the question: "*Have you resorted to no PMO ( porn-masturbation- orgasm) as a solution?*". In reply, it's a good theory to ponder. In my opinion, I don't think that PMO itself decreases stuttering in the exact same way that reducing fear or anticipation doesn't decrease stuttering. This research explains dopamine in stuttering very clearly: [this research about dopamine](https://www.researchgate.net/publication/352029918_STUTTERING_DOPAMINE_AND_INCENTIVE_LEARNING) in stuttering. Could you perhaps take a read, and let me know what you think of it? [This ](https://drive.google.com/file/d/1hESFUnrXWOnmvpEgBdWrc-_694GVmjwk/view?usp=sharing) is the diagram of this researcher.