I was in a sauna yesterday after the gym.
It probably wasn't as hot as those in the competition but i couldn't stick it longer than 5 minutes.
My lips were tingeling, i was short of breath it's really not a place where you can relax.
A nice relaxing sauna is the best way to relax at night. Can't stand the dry heat rooms that most americans think are real saunas. If you aren't sprinkling water on heated rocks to create steam, you aren't in a sauna, you're just in a warm room.
I've been in saunas into 100Â°C and it can get pretty tough to breathe with the heavy steam making the air nice and thick. I like it over 80Â°C but to push it to 100Â°C or more isn't necessary. Folks who jump in and just start dumping water on the rocks to make it as hot as possible or horsing around don't belong in a sauna.