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12 Things That Happen to Your Body When It’s Freezing Out

how does cold weather affect your body

You shiver

Of course you shiver when its coldbut the reason you do is interesting. When vasoconstriction isnt doing enough to warm you, the hypothalamus tells your muscles to start contracting,”says Giesbrecht. “One of the byproducts of muscle contraction is heat. Garden-variety shivering produces about 100 watts of heat, he says. If you get cold enough to enter into mild hypothermia, you can produce 400 to 600 watts of heat through shivering.

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