Everyone has answered the question so I will add a little fact.
There is a temperature and humidity combination that causes death even in fit, healthy people.
A continued temperature of 35°C with 100% humidity (wet bulb temperature) causes the body to be unable to shed heat through evaporation. If you can’t find a way of shedding the heat your body is producing you will die.
I experienced this for a few days a couple of years ago and I can say I never want to feel that again.
Latest Answers