00:00You're sweating, the sun is unbearable, but this isn't your average heat wave.
00:05This is the edge of human survival, so how hot is too hot?
00:09At just 35 degrees Celsius with high humidity, your body starts to struggle.
00:15At 40 degrees Celsius, your organs work overtime.
00:19At 42 degrees Celsius, you're in medical danger.
00:22But what's the absolute hottest temperature a human can survive?
00:25It's not just the temperature, it's wet bulb temperature.
00:28That's a mix of heat and humidity.
00:31If that hits 35 degrees Celsius, your body can't cool itself anymore.
00:36You stop sweating, your core temp rises.
00:39You cook from the inside, even in the shade.
00:41At 41 degrees Celsius body temp, your brain gets fuzzy.
00:45At 42.5 degrees Celsius, you collapse.
00:48At 44 degrees Celsius, cell damage is irreversible.
00:52Blood thickens, organs fail.
00:54Death follows quickly.
00:56Places like Death Valley, California, and the Persian Gulf have reached real temperatures
01:00near this limit.
01:02Climate change.
01:03Pushing those extremes higher.
01:05Cities may become uninhabitable.
01:07Not in centuries, but in decades.
01:09To survive the hottest temps, you'd need climate-controlled shelters, liquid cooling suits, or underground
01:15cities outside.
01:17Minutes of exposure could be fatal.
01:19So, what's the hottest temperature you can survive?
01:23With low humidity, maybe 120 degrees Celsius in a special suit, without protection, a wet
01:29bulb temp of 35 degrees Celsius is all it takes to shut you down.
01:33How hot is it where you are right now?
01:36Could you survive the heat of the future?
01:38Let us know in the comments, and for more Life and Edge What Ifs, hit like, subscribe, and
01:44stay cool out there.
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