If you're familiar with the classic yoga pose called "downward facing dog," try this variation for more of a challenge. It develops flexibility in your legs while strengthening your core and upper-body muscles.
-- Karen Voight
1 Begin on your hands and knees, then curl your toes under and lift your hips to straighten your knees, pushing your heels toward the floor. Shift your weight to your left leg and raise your right leg off the floor. Keep your right foot flexed, with your toes and knee pointed down.

