My personal story to illustrate how your posture, pain, and movement is the result of how your brain uses your senses to move through space and how you breathe. You can not improve posture or movement without knowing this. Your brain and body do not care that you want to improve your posture or your movement. It only cares about what it senses, the influence of gravity, and threat. Your posture and movement are based off of these three things.
https://pritrainer.com/