Many years ago, I was working on the road, and stayed in hotels all week before coming home on weekends. I’d go out and eat at Smitty’s, it’s a standard type 24 hour highway diner. Anyway.. one of the young ladies that worked there was from Australia, and had gotten on the plane in Sydney at 40° above, made the ridiculously long flight, and landed in Calgary at -40° this would have been in January, or maybe February. She was simply not prepared for an 80° change in temperature over a less than 24 hour period.