I have been to regular yoga but the studio I go to in Brooklyn specializes in "hot" yoga. They offer a wide variety of classes from warm, regular and hot (105 degrees) and other fitness classes in a warm room. I just find that I really like how I feel after regular hot yoga (temp is usually 94). As far as Metformin, I read a ton of things about nasty side effects before I tried it. Here's what I have to say about that: I've had ZERO side effects, except better blood sugars and less total daily dose...my TDD yesterday was 20.8 units.......I'm used to being at around 24-27 a day. I think some people get side effects when they take the Met improperly. You have to sandwich it into a big meal, and you have to be hydrated and not drink alcohol. So far, so good for me.