This post lengthens and strengthens the obliques, abdominals, and back.
How to do it: From warrior II, straighten your right leg so both legs are straight. Lean your torso forward over your front leg, keeping both sides of your torso long. Rest your right hand on your shin or bring your fingertips to the ground if you can. Lean back, open your shoulders, and extend your left arm up above your shoulders into triangle. From triangle, reach your left arm over your head, palm faces down, reach your right arm under your head, palm facing up. Stay here for five long, deep breaths.