Just read the article, what? 35° or even lower as the max. temperature humans can handle in the street? In my entire life, just for living here I've usually es

Just read the article, what? 35° or even lower as the max. temperature humans can handle in the street? In my entire life, just for living here I've usually estimated that humans can handsomely handle 40° to 50°. Full 10-20 Celsius degrees above what the paper says. Well, it actually says that the upper limit of tolerance is below 35°. Here we have people kindly walking in the street - maybe with a bottle of water in their hands - literally for hours at 45-50°, no thousand of deads for heat stroke or other issues. Yes, heat is highly dangerous, you can move at 45-50° in the street, just like you can walk the streets at 0° to -10° for maybe a couple of hours with a t-shirt if you are sufficienty adapted to cold temperatures. But you need to have some precautions as well, and at some point to take some effective measures to control the external temperatures so it doesn't overheats you. But, 40-50° at hight humidity (over 80%), are, in my personal experience and for what I've already saw in several decades, in the experience of probably thousands of people, highly survivable. You'll adapt to it, you will not end dead. The species as a whole will probably get better at handling hotter climate with "bare hands" if you wait a little - 10-20 years - most probably the genetic baseline for this adaptation is already in place, maybe epigenetics will trigger it fairly fast for those who have not lived in hot places.