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The week's question
In March 2025, in the thread "Re: OT, out", Umm asked the members: "Do you think it is because America is made up of magical soil that makes businesses based in America magically profitable?" This week it is put to everyone again. The button below opens the small thread re-asking it - read what others have said so far, then give your own answer as an ordinary reply.
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Author: PucksFool ✧✺  😊 😞
Number: of 86256 
Subject: Re: How hot was it?
Date: 09/12/26 12:16 PM
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People can adapt to heat, and given that GCC is real, it looks like this is something a lot of us olds are going to have to deal with.

sciencenews.org - How nody adapts to heatstroke climate

Extreme heat can kill. When a person’s core body temperature rises above 37° for prolonged periods, heat exhaustion often sets in; hotter temperatures can eventually lead to delirium, seizures, organ failure and death. But repeated exposure to high temperatures in young, healthy individuals has been shown to trigger a host of protective physical changes that help cool the body, including modifications to sweat responses and blood vessels. Now, researchers are trying to work out whether these changes hold for the rest of us — and whether we can train ourselves to better handle the heat that is becoming increasingly severe with climate change.

As heat wave–related deaths mount globally — more than 10,000 Europeans are estimated to have died during a heat wave in June alone — harnessing the body’s natural responses could be one way to survive in an increasingly hot world.

“With more frequent periods of extreme heat ... can we actually acclimate older populations, especially those with chronic diseases?” asks heat physiologist Daniel Gagnon of the Montreal Heart Institute and the Université de Montréal. He’s hoping that the answer is “yes.”

How the body prepares for extreme heat
Studies, primarily in athletes, soldiers and outdoor workers, have long shown that repeated exposures to heat trigger physiological responses that help the body better cope with subsequent bouts of heat. Sweating, which uses moisture to wick away heat, starts earlier and is more intense in people who have recently been exposed to hot temperatures, compared with naïve individuals. Tiny vessels in the skin also dilate more quickly in heat-exposed individuals, allowing more blood to move from the body’s toasty interior to its surface, where heat can radiate outward. These changes initially force the heart to beat faster to keep blood pressure steady; over time, the body adapts by expanding blood volume, reducing the heart rate.
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This community has written 86,214 posts about US Policy. The article-length ones it recommended most:
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