For all-day energy, strike a downward dog split in the morning: Start in a downward dog, spreading your fingers wide, tucking your toes, and lifting your hips up and back. Once stable, reach your left leg behind you, opening up the hips and shoulders, and twisting your core slightly to the left. Hold for a couple of breaths and repeat on the opposite side. Source: Tara Stiles, Reebok yoga expert and founder of Strala Yoga in New York City