Hot and cold are something I found my body does adjust to. Back in my first life I worked outside for a living, logger and carpenter from Olean, NY to Moosehead Lake, ME. In the winter it got colder than... well... really cold. Sure you’d feel the cold but got used to it. You’d get some high 90’s F in the summer but still had to work outside. The body adapted and I managed to survive. In the summers down here in NC it can get brutally hot and humid. I’ve adapted and can put up with high 90’s with air so think it’s hard to breath. I’ve turned the air on a few times this summer when it got way too hot for my old black lab. I have to admit that walking into a place that is 85 F is mighty refreshing when it is hot hot hot outside! I’ve only had the AC on in the car once this summer, just to make sure it still worked!
Trick for me to keep cool is to have a breeze going, I use a portable fan. It evaporates the sweat and cools me down. I’ve practiced being w/out electric a few times (meaning no fan) and used water and shade. Sit in the shade and ladle cups of water over my head, letting them soak my cotton shirt and pants. Even with no breeze it would cool you down for a few minutes. I found the North side of the place still remained cooler than ambient temp and the ground is cooler still. Lying in the grass there would cool me down also. Granted it was still hot as Hades but I did survive. Having a pond/lake or stream to soak in would have been great but I have no such luxury at the trailer.
A fishing buddy bought one of those ‘chilly towels’, or something like that. When damp it evaporated water and really does feel almost cold. I’m going to have to invest in a dozen of those, enough to cover my body… and Wendy’s too (my lab).