[cleancoder0]

This got me wondering, how do humans handle a hot bath? Wet-bulb temp is much higher than 35 °C, right?

I mean, it's probably going to hit moist areas first. So India should be one of the first countries to experience lethal wet-bulb temperatures.

[mattmaroon]

A hot tub is a little above it. But it’s very important to remember your head is above the water. So the wet bulb temperature for your most vital organs is much lower.

Also you really aren’t supposed to stay in for a long time and it definitely can hurt/kill you to do so. It’s not very common because you can leave at any time and you’ll feel growing discomfort long before the danger zone but people do die that way.