The Compass

Dr Vybarr Cregan-Reid investigates what the last 250 years has done to our backs. What is it about modern life that has promoted back pain, especially lower back pain, from a rarity to the number one cause of pain and disability in the world?In the remote Kenyan Village of Pemja, Dr Cregan-Reid meets people with such excellent backs that they are the subject of international study. He hears from pain-wracked workers in Nairobi whose backs today are a pale version of those of their grandparents' and at the London Design museum he comes face-to-face with the artefact that has done most to weaken our backs - the chair.Chairs with backs are now so ubiquitous it is reckoned there are around 10 for each of us but as recently as 1800 they were a rarity. Not that we have much choice but to sit down today. At the start of the 19th Century fractions of one per cent of people sat down for a living but today three quarters work in offices or drive for a living. We put our spines into positions they were not designed to s