I'd have to agree with that. The human body has its limits, and that exceeds it, I don't care how tough you are.
You get acclimated to it after a while.
Forty Below and snow just means good snowmobiling, skiing, ice fishing, snowshoeing, etc., up here in northern New Hampshire.
I can't believe the idiot weather morons on TV and radio calling a snowstorm and a little cold weather "bad weather".
It means billions of dollars and a LOT of fun for northern NH.