ive only done yoga via dvd with my ladyfriend, but it definitely made me me feel good and knocked my dick in the dirt. i do train jiu jitsu and that seems to help my flexability as well as cardio,endurance etc. ive only been doing that a few years but its changed my life-- i lost 30 pounds and feel like a kid when im on the mat, and when im rolling i cant think about anything else so its relaxing too. i would never have tried it if my boss josh ford hadnt sent me down that path. i have a 12 old boy who trains as well and is the currrent state champ-its a great way for us to bond as well. i would bet you could find a no nosense straight ahead yoga class without god being a part of it. i know at our school you get to try it out for a couple weeks for free--i bet yoga joints are the same.... as it ever was