The experience of teaching improved my public speaking significantly. I think most people hate public speaking because the initial experiences they have are for

The experience of teaching improved my public speaking significantly. I think most people hate public speaking because the initial experiences they have are for short periods of time when they're nervous and full of adrenaline. That adrenaline surge burns off pretty fast though. Physiologically you just can't sustain it and (at worst) within about 15-20 minutes you relax. When you teach a class that may be several hours or days long, that means you're relaxed for the vast majority of the time. I think that experience conditioned me to be more relaxed for public speaking in general.