I can't really eat meals unless I'm sitting down because I feel so unsatisfied otherwise. I need a place to set my food down if I want to pause midway, and I always need a drink on hand. I see some people who can eat entire meals without a drink, and it kills me. I nearly choke if I don't take a drink after 2-3 bites.
As for saunas, they seem to be the complete opposite of relaxing, to me. I don't quite see the appeal of sitting in the heat with a bunch of strangers and their naked junk. It sounds like a perfect social anxiety nightmare, really.