I know that according to Sarno, sitting is harmless. But then the news, doctors, and essentially everyone else chimes in with the old 'sitting doubles the pressure on discs,' 'bad posture and long hours of sitting sets you up for pain' etc etc etc ad nauseum. This makes sense, and it certainly feels that way. I can see that that may be conditioning, but I need more confidence that it's true that sitting is harmless and posture doesn't matter if I'm to have the courage and resolve to break the conditioning. How can I be sure that everyone else, and my own symptoms, are wrong?