Bob, there has been some discussion on the list reguarding low back pain, a very common problem not only wirh PWP's but everyone. There is something I am curious about. I think we all have heard that some people "POP" their neck or low back or somewhere up and down the spinal column.This results in the release of tension and/or reduction of pain, or maybe it just feels good. What exactly are we (I am one who pops their lower back) doing when we do this? I was told by a physical thearpist that as long as it does not hurt, that it is ok to do this, esp if it helps. Without diagonising any one person, could you give me and other list members some information on this practice. Is it something we should try to do? Is it common for this to help, or should it be avoided for most back pain sufferers? Lanier Maddux 62/2 Chattanooga, Tn.