“…6,7 Studies on somatic theories and mechanical aspects of the trauma are still being published, but recently more articles have focused on psychological, cultural, and social factors as an explanation for the various characteristics of this syndrome. 1,5,[8][9][10][11][12][13] Although still subject to debate, a general consensus is building that post-whiplash syndrome should be regarded as a functional somatic syndrome with etiologic factors known to be involved in similar syndromes. 1,14,15 A recent systematic review of prognostic factors stated that high initial pain intensity, restricted cervical range of motion, high number of symptoms, previous psychological problems, and nervousness are considered risk factors for delayed recovery, although the available evidence is not very strong.…”