A comfort zone is a psychological state, I also believe it can also be a physical state, in which things feel familiar to a person and they are at ease and in control of their environment, experiencing low levels of anxiety and stress. This is the zone where a steady level of performance is possible. This is where I’m striving to be at ALL times these days!
Interesting that the Optimal Performance Zone is just outside of the Comfort Zone.
I thought that was interesting too!