The quest to find out how our bodies react to extreme temperatures
technologyreview.com·1d
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Scientists hope to prevent deaths from climate change, but heat and cold are more complicated than we thought.

October 15, 2025

""Libby Cowgill is an anthropologist at the University of Missouri who hopes to revamp the science of thermoregulation.Justin Clemon

It’s the 25th of June and I’m shivering in my lab-issued underwear in Fort Worth, Texas. Libby Cowgill, an anthropologist in a furry parka, has wheeled me and my cot into a metal-walled room set to 40 °F. A loud fan pummels me from above and siphons the dregs of my body heat through the cot’s mesh from below. A large respirator fits snug over my nose and mouth. The device tracks carbon dioxide in my exhales—a proxy for how my me…

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