'Unlike most physical exercise, yoga focuses not only on the body but the mind and spirit.
Although the exact origins of yoga are unclear, it is widely considered an ancient Indian practice with close ties to Hinduism. One of the six major orthodox schools of Hinduism is called Yoga, and goes far beyond just exercises of the body, having its own epistemology and metaphysics.
The science on yoga is sparse and much of the research remains unfounded. What we do know is that long term users report musculoskeletal and mental health improvements as well as reduced asthma symptoms in sufferers.'