Prolonged exposure to microgravity experienced by astronauts in space is known to cause low back pain and a heightened risk of intervertebral disc herniations following spaceflight. Jeff Lotz, Professor, Vice Chair for Research, UCSF Orthopaedic Surgery, discusses what has been learned about back pain and spinal degeneration. Series: "Mini Medical School for the Public" [Health and Medicine] [Science] [Show ID: 37079]