I used to belong to a fitness center that had one, but there were always sweaty fat naked guys sitting in it. Then I got one for my house, and fat guys just started to show up. They're drawn to saunas, I tell you.
That second part isn't true. I don't have a sauna. Hell, I'm too cheap to take a hot shower.
That third part of the second sentence isn't true. I take hot showers.