Adho Mukha Svanasana (aka downward facing dog). It's one of those poses that we do so often in yoga, we sometimes forget that it requires constant work. As an exercise in flexibility and strength, not to mention a major energy booster, it's well worth a little extra attention. To help you master the fundamental pose, Alo Om-bassador Josh Kramer breaks it down, detail by detail.
Have any wrist pain? Here's a tutorial just for you...