You may have already read some of my blog posts on lower back pain and chiropractors. I've found that while a chiropractor can get you out of pain using spinal adjustments, yoga will strengthen your muscles and correct your posture (when done correctly). The first thing you learn about doing yoga is the importance of correct breathing and how it relates to your posture. I've done a bit more reading and it turns out that breathing is much more powerful than many believe.
I am posting this free book because it is public domain, I do not own it nor claim copyright.