Stuttering is all a mental programming/phobia/stronghold. When we were young & our brains where still developing alot of us experienced intense shame, embarrassment & pain when stuttering infront of our peers. This built up a irrational but intense mental stronghold & Phobia in our brain. So that now as adults (this is true for myself) its a strong knee jerk reaction for me to get adrenaline response & tense up when I talk to people...unfortunately at 30+ yrs old I dont think I will ever be free of this nightmare, but I still practice my speech from my old therapy class 8 years ago. Idk, I just pray that some of us can over come this somewhat & live a life worth living despite this BS curse preventing us from being normal communticating people.