I've attended quite a lot of yoga classes in different parts of the country, and none of them have included any kind of inversion -- no head stands, shoulder st

I've attended quite a lot of yoga classes in different parts of the country, and none of them have included any kind of inversion -- no head stands, shoulder stands, or "bridge" (aka wheel). For that matter, none have included the leg extension done by the guy in the green shirt, either. This article is both factual and sensationalist at the same time.