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Yep, cooling the blood in the major arteries for further circulation. It works opposite as well if you need to warm someone with hypothermia.
Thanks for sharing. I hope to never need it, but you never know :)
If you’re working in heat (inside or out) we used to take bandanas (or old t-shirts, towels, etc), soak them in water and wrap it around your neck. Works wonders to keep your brain working and body slightly cooler.
Ye olde line-cook air conditioning, a towel in a bucket of ice water in the walk-in cooler
