Comment Re:Did they control for wealth? (Score 1) 189
Dunno where you are, but I have noticed that in the US there's fewer saunas around in hotels etc, and they for some reason are freakin' cold.
Meanwhile, Northern Europe they are everywhere alongside IR saunas and/or roman baths, with a few countries also having them in many homes.
Heck, you can get portable saunas...