Neck and back pain continue to be extremely common, with a high prevalence and wide socio-economic consequences all over the industrialized world. Through the years a growing interest has risen for other factors than the pure biomedical or biomechanical. This has led to a new clinical model for the treatment of back pain; the biopsychosocial model of illness. Treatment based on the biopsychosocial model not only must address the biological basis of symptoms, but must incorporate the full range of social and psychological factors that have been shown to affect pain, distress and disability.