Vary much so. With dry air, and sufficient water, humans can survive very high temperatures (including 100C! [0]). However in 100% humidity (where sweating does

Vary much so. With dry air, and sufficient water, humans can survive very high temperatures (including 100C! [0]). However in 100% humidity (where sweating doesn’t work), 32C is the maximum we can survive [1]. [0] https://publicdomainreview.org/collection/experiments-and-observations-in-a-heated-room-1774 https://publicdomainreview.org/collection/experiments-and-ob... [1] https://en.m.wikipedia.org/wiki/Wet-bulb_temperature https://en.m.wikipedia.org/wiki/Wet-bulb_temperature