Why do our teeth chatter when we're cold?!

Well, it's actually a sort of cool thing that happens. Whenever our brain senses any dramatic change in body temperature it signals our muscles to move to generate more heat to warm our body. That's why we tend to jump around, rub our arms, and stuff, and yes, there is one involuntary movement that happens...teeth chatter. Just one more desperate attempt our body makes to rectify the problem of being too cold!Health Question & Answer

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It is the your bodies way of maintaining homeostasis(98.6degrees) When the brain realizes your cold it sends a signal to your muscles to start moving to produce heat.Thats why you shiver.The same way you sweat when you are hot because the body is trying to cool off.Health Question & Answer

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when you're cold, you shiver because your muscles are contracting rapidly to generate heat to keep you warm. the chattering is due to the muscles of your face contractingHealth Question & Answer

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muscle group closest to your head is rapidly contracting to generate warmth in your head, the most vital part of your body. Health Question & Answer

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