Therapeutic yoga is an inherently holistic approach, simultaneously working on the body, mind, and spirit. Various yoga practices systematically strengthen different systems in the body, including the heart and cardiovascular system, the lungs, muscles, and the nervous system. Yoga practices can improve function of the digestive system foster psychological well-being, and improve oxygen delivery to tissues. Yoga also can help the body more efficiently remove waste products, carcinogens, and cellular toxins.