Sage Rountree, Ph.D., is a teacher trainer at the highest level (E-RYT 500) and director of the yoga-teacher trainings at the Carolina Yoga Company, which she co-owns. The author of numerous health-centric books, her writing has appeared in Runner's World, Yoga Journal, ESPN, Vogue, Men's Fitness, USA Today, and the Chicago Tribune. She presents internationally on yoga and athletics at venues including the U.S. Olympic Training Center and the Pentagon.