Humans are adaptable. We live at the poles. We live in the deserts. I’ve enjoyed time in the Arctic and the Sahara.

I get what you’re saying, but people also spend most of their lives in a 68-72 F / 19-21 C degree bubble. That trains the body only to accept homeostasis. Of course, three hours at 110 F one rooftop can be rough, but it’s also a lot worse of that’s 40 degrees away from what you spend 99% of your time at.

Less AC. Be outside more. Cold showers and mid-day workouts.