I have been doing yoga for a number of years and it keeps my back healthy and has improved the quality of my life. At 50 I was frustrated with how often I had back problems and after dealing with doctors, physical therapy and chiropractors which helped, but didn't give me long term relief I walked into a yoga studio. It took about 6 months to really get better, but I just turned 60 and I very seldom have back problems and I'm doing a lot of physical activities that I couldn't do 10 years ago.