its interesting that in cultures such as tribal communities in the Amazon that low back pain as a concept does not exist. It simply has no cultural relevance and therefore has never become an entity. However researchers such as Waddel and Burton have found that by living there for 3 months and making daily reviews of the men in the tribes, that back pain does exist - but in there social context "So What". In fact it exists in the same age groups and in the same percentages as it does in western cultures. It is therefore considered a "normal" phenomenum (?spelling) that in our western and some eastern societies has developed a cultural and social relevance. In some cultures this has evolved even more, e.g. "Mediterranean Back" regards richard