Yoga is certainly a physical practice and can be a great way to work on strength and flexibility. But many seasoned yogis and instructors will tell you that breathing and mindfulness are at the heart of the practice.
Yoga wasn't always hot. There was a time when it was weird. "What the hell are you doing in here?" asked the librarian who had found me in the depths of the archives of the university library, where I had been alone practicing yoga.
The whole point of yoga is to get us to release our egos. And yet, it appears that some of the young teachers have such inflated egos that I'm uncertain even yoga will remedy their afflictions in just one lifetime.