This is another article I found which I thought was interesting and relevant. It is by Paul M. Jerard Jr.
At first glance, Martial Arts and Yoga seem like opposing forces and philosophies, but these two health maintenance systems have more in common than meets the eye. For a moment, consider the similarities between Tai Chi and Hatha Yoga. Within the warm up, you notice very similar movement, philosophy, and principles.
I admit it - I took breathing for granted for a large portion of my life. It was one of those bodily functions that just happened. I didn't think about it. And I certainly didn't pay much attention to it. Then I stumbed upon yoga and meditation and now I'm more aware - and appreciative - of my breath than ever.