[5h]

The ones I remember most were for stammering/stuttering. It was a mix of breathing from the bottom of your chest, strong posture with shoulders up & a little back, not forcing your ribs up, but feeling them move out horizontally.

The biggest part for becoming a confident public speaker was the psychological side (aside from all the usual stuff about slowing down mentally). Becoming conscious of breathing for just a few seconds before starting works wonders, as does carefully timing awkward to produce sounds/syllables on different parts of the breathing downstroke.

I've been doing this for 30yrs (i wrote 20 initially ... forgot i'm old :) now, slow breathing is the norm at the desk & before speaking to an audience/hosting meetings etc I still have to follow the same steps every time otherwise I start tripping over my tongue.