>Our studies on young healthy men and women show that this upper environmental limit is even lower than the theorized 35 C. It’s more like a wet-bulb temperatur

>Our studies on young healthy men and women show that this upper environmental limit is even lower than the theorized 35 C. It’s more like a wet-bulb temperature of 31 C (88 F). That would equal 31 C at 100% humidity or 38 C (100 F) at 60% humidity. Which nicely explains the extinction of humans in southern Europe, Middle East, Africa and many Asian countries, including many countries in South America and a good 2/3 of Australia. /s