Back pain: Should we be treating beliefs not backs?

A psychological approach called pain reprocessing therapy appears to be effective for up to a year, research shows

Is chronic back pain with no diagnosed cause simply a result of the patient’s beliefs and fears? And if it is, can a psychological therapy provide long-lasting relief? 

What a boon it would be to every GP – not to mention patients – to find an effective treatment for this leading cause of disability, which affects about 20% of the population.