Extreme heat taxes the body in many ways. Here’s how
Hotter nights and more humid heat waves are pushing the limits of the human body
![A man sitting in a dark gymnasium with a wet towel draped over his head and upper body.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/08/080223_LMZ_extreme-heat_feat.jpg?fit=1030%2C580&ssl=1)
Extreme heat waves are pushing the human body to the limit. Without ways to cool down, the high temperatures can prove harmful or even fatal. Here, a person attempts to stay cool during a record-breaking heat wave in Phoenix on July 18.
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