So I've just joined a new gym and they have a sauna and steam room. And I realised the other day I've no idea how to properly use them. Is there any advice on the "right" way to use each one? Is the sauna for one thing and the steam room another? Is it just "sit in a hot room for 10 minutes"? I imagine there's probably a lot of unsubstantiated claims made for all sorts of health benefits? In the past I've used them before swimming so you get a bit of hot/cold shock going on. No idea if that's a good idea though.