[Tuna-Fish]

> The UK Daily Telegraph had an article about how nearby Jacobabad crossed the 35C wet bulb reading threshold, at which point — according to the article — the body can no longer cool itself.

Not quite. At 35C, the body can no longer maintain a normal body temperature, and simply standing outside in the shade will cause everyone to run a fever. However, a degree of fever is not dangerous in otherwise healthy individuals. So at 35C people can cool themselves, but only at an elevated temperature.

However, add a degree above that, and all the elderly and infirm will die. Add two degrees, and even healthy people start dropping like flies.