Why back surgery fails brings broad insights into health.  David Hanscom MD is an orthopedic surgeon who realized that the back surgery rarely works and that back pain is most often due to inflammatory reactions from many difference sources, from psychological stress to immunological problems.  After 32 years, he quit his surgical practice in 2018 to focus on teaching people how to break the grip of chronic mental and physical pain. His mission is to re-introduce true healing in medicine. Dr. Hanscom’s transformation of his career as he faced the scientific evidence and his knowledge of advanced medical issues are both enlightening.  I am fascinated by his concept that that the body’s experience of danger from almost any source can overstimulate its immune system.