I used to do a lot of yoga - really helped my back issues and my dad got into it for a bit with his rheumatoid arthritis. We got out of practice but we should get into it again.

Yoga isn't a religion although it started by the Hindu as a way of expressing spirituality. Most of us do it for excersize, relaxation, and pain relief. I'm Jewish - yoga has nothing to do with religion for me - there is no praying involved or anything - it is just putting your body into different positions and using different movements to stimulate blood flow, flexibility, and relaxation. It is recommended by doctors for pain management. You don't have to believe in those things sky posted to practice what is now a common form of excersize!