Power yoga is an American interpretation of Ashtanga yoga that was introduced by two American yoga teachers and is a rigorous, fitness-based approach to Vinayasa-style yoga. It focuses on ten effective poses like cobra, bow, warrior, and pigeon poses. The benefits of power yoga include burning calories, reducing fat, improving blood circulation and concentration, strengthening the immune system, reducing stress and tension, increasing stamina and flexibility, eliminating toxins, toning the body and core without stressing joints, and helping maintain proper posture.