Why Do Some People ‘Tremble’ When They’re Cold?

When it's cold, some people tremble to keep warm. Their body shakes like a dog shaking off water because it wants to make more heat. It's like turning on a little heater inside your skin when you're chilly!

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Examples

A child jumping up and down on the playground when it's chilly outside.
A person shaking their hands like a snow globe when they walk into a cold room.
A dog shivering after getting out of a warm bath.

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Categories: Health · cold,shivering,body temperature,physiology