Sit Better: A Doctor Explains How “Ergonomic” Chairs Undermine Posture and Health, Causing Back Pain and Shortened LivesEbookSit Better: A Doctor Explains How “Ergonomic” Chairs Undermine Posture and Health, Causing Back Pain and Shortened LivesbyTurner OslerRating: 0 out of 5 stars0 ratingsSave Sit Better: A Doctor Explains How “Ergonomic” Chairs Undermine Posture and Health, Causing Back Pain and Shortened Lives for later