i) Gives proper body alignment and good posture, which helps maintain the natural curvature of the spine.
ii) Stretches the hamstring muscles (in the back of the thigh) and helps expand the motion in the pelvis, decreasing stress across the lower back.
iii) Yoga positioning and repositioning not only limbers the body, but also trains people to understand the limitations of their body.
iv) Improved blood flow brings nourishment in and flushes waste out, helping to improve the environment surrounding the muscles of the back.