Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jun 27, 2009
The causes of chronic pain in our body is a complex question. Bob Johnson of http://medfaxxinc.com simplifies the three theories in this video and explains the Melzack Wall Gate Control Theory, the Sjolund Opioid Peptide research and the new Glial Cell Theory which adds insight into carryover pain relief periods using the model that chronic pain is an unnatural occurrence and the chemical/physical agents are altered inflicting pain.