Chapter IWho Suffers?
Try listing the names of ten adult friends at random. If seven of them are backache victims, and only three are free of the sufferings addressed in this book, they're a set of typical persons. If you are one of the seven unfortunates (and the fact that you're opening this book means you probably are), the problem becomes acutely personal in terms of pain and inconvenience. However, the probabilities are that if this is a new backache, you will be just fine within the next four to five weeks.
In any case, you're not alone. In the Western world, epidemiological studies reveal that back pain...