I don't know how many of my patients come in with constant lower back pain to some degree. They've tried muscle relaxants, stretching, heating pads, but somehow it always returns. There isn't anything really wrong with their backs. They didn't injure themselves in any way, haven't been over-exercising, or doing heavy house or outdoor work, haven't been lifting any heavy objects or moving furniture. Yet, they have chronic lower back pain and want to know why.