i also heard the trick that if you come inside from cold temperatures you should only wash your hands with cold water until the numb sensation goes away. why is this?
In: Biology
It’s OK to use out-of-the-tap hot water. The pain you feel is just your body re-calibrating. Where people get in trouble is that they use water that’s hotter than hot tap water, and they ignore the pain because they figure it’s just the re-calibrating. But you can damage yourself **really** badly, just like how you could damage yourself on a normal day by pouring scalding-hot water on yourself.
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