Hatha yoga is the most widely practiced form of yoga in America. It is the branch of yoga which concentrates on physical health and mental well being. Hatha yoga uses bodily postures (asanas), breathing techniques (pranayama), and meditation (dyana) with the goal of bringing about a sound, healthy body and a clear, peaceful mind. There are nearly 200 hatha yoga postures, with hundreds of variations, which work to make the spine and to promote circulation in all the organs, glands, and tissues. Hatha yoga postures also stretch an align the body, promoting balance and flexibility.