There is a lot of talk about the benefits of yoga beyond the physical. Yoga is, after all, defined in the Yoga Sutra as "controlling the mental chatter" or "quieting the mind". Some days though, the physical health benefits of yoga are enough. Here are some more great words from B.K.S. Iyengar about yoga and health...and at his age (92? I think?) he ought to know whether there really is anything to this yoga stuff!
"Most people ask only from their body that it does not trouble them. Most people feel that they are healthy if they are not suffering from illness or pain, not aware of the imbalances that exist in their bodies and minds that ultimately will lead to disease. Yoga has a threefold impact on health. It keeps healthy people healthy, it inhibits the development of diseases, and it aids recovery from ill health."
-B.K.S. Iyengar from 'Light on Life'