Up until a few years ago, I could've seen doing this as a worthwhile survival exercise, and to know that I can do it.
Then, without trying, I overheated simply by exercising in a room that I didn't know was 95F.
(Since I've mostly only lived in cold/moderate climates, and had never learned how risky 95F is.)
It was highly unpleasant, in an uh-oh, I can see how people die this way, kind of way.
Now, I actively avoid anywhere much hotter than about 80F.
Just last week, I declined a very interesting recruiting outreach from a CEO in Austin, telling him, sorry, but the weather in Texas is just too hot for me.
I'm ready to repurpose the term "special snowflake".
> A young woman seems to be walking around in a daze. [...] I don't think they believed their guidebooks about how uncomfortably hot it can get in Death Valley.
I hope someone helped the dazed person with first aid. And that other people take the heat seriously. It's right there in the name: Death Valley.