6 Yoga Stretches to Wake You Up. 4) Lunge.

Return to all fours, and step your right foot forward so your toes line up with your fingers and your knee is over your ankle. Next, slide your left leg behind you with your knee on the floor. Keep your spine long and straight and your shoulder blades down. To deepen the stretch, press your hips forward and down and your collarbones up. Breathe, switch sides, and repeat.