Wow that is really interesting. Something even beyond tension. I thought I was reproducing it when I did a half cough scenario like when a doctor may ask us to cough, we lock in the back area, push and produce the cough when we unlock that back area with the push. That initial like in when we are half way to letting go, if I hold it, I can't say anything. But I never was quiet sure if that was exactly it, exactly the area that closes, or if it just felt similar. But I was always curious what it was exactly that I was closing up back there to start a cough because it felt like I was shutting off my airwaves for a moment.