When you've done a 22 hour shift caring for patients without a break, we can talk. (I know, I'm a wimp, I never actually did a full 24h straight.)
My longest single shift was 39 hours. In a different field but lots and lots of folks work essential jobs, maybe even Yppej. The worst part of it was the half hour drive home since no one should drive after being up that long.
"Things should be made as simple as possible, but not one bit simpler." ~ Albert Einstein