A strong core means so much more than flat abs. A healthy core helps you stand taller, look leaner, and feel more energetic. Led by Shiva Rea - called a "powerhouse yoga teacher" by the Nex York Times - these seven flowing yoga segments focus on the core, upper body, and lower body. Reap the soul-nourishing benefits of yoga while you sculpt a long, lean torso and a strong, supple back.