Jeff Goodell:
Well, our bodies are like these heat machines. We have this kind of unconscious mechanism in our bodies that keeps our bodies at a very stable temperature. I think everyone knows that.
When you go to the doctor, the first thing the doctor does is take your temperature. It's a sign that things are wrong. And so what happens during these extreme heat events is that our body has to work much harder to maintain that temperature.
And so what happens is, your heart starts pounding and starts pushing more blood towards the surface of your skin, where it can be cooled through sweating. And that can work for a while. But if the temperatures get too high, it really puts your life at risk. Not everybody is equally vulnerable.
People who are older, people who have weak hearts, young children, pregnant women, people who are on certain kinds of medications, their bodies can't regulate the temperature. And once your body starts warming up, it's really not pretty what happens.
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