Yoga is more than just an excellent form of exercise; it is also a spiritual and mental practice that can improve your mental outlook. It has the capacity to improve sleep, increase concentration, and deepen our levels of awareness and contentment. Anatomy of Fitness: Yoga shows you how to build your strength and flexibility while improving your concentration and willpower. This kit features a complete DVD yoga program and 64-page book to help you release strain from your body, clear your mind and restore your energy levels.