Just a dumb country boy here. Ive worked outside since high school. Im now 46 years old. The sun is different. The sun's heat is super intense on my skin now. The Shade is the difference between making it all day or till mid afternoon. You gotta get out of the sun. Air Temps matter but the sun is the factor. Im 100% convinced something is different. Im getting lil age on me now but much tougher than the younger guys. They can't stand it. Hell I don't blame them but never tell them that. I also believe it had something to do with me never catching covid.Just my 2 cents