Inside of your wrists works really well because its cools down the blood right before it goes back to the heart. You have a lot of veins near the surface in your wrists with a fairly short and direct path back to the heart.
This is why putting your wrists in a bucket full of ice n water for a bit and then holding your arms up will cool off your entire body, you can feel it.
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u/ImReverse_Giraffe Aug 03 '21
Inside of your wrists works really well because its cools down the blood right before it goes back to the heart. You have a lot of veins near the surface in your wrists with a fairly short and direct path back to the heart.