@learning.with.lyrics: Why do our teeth chatter when we're cold? 🤔🥶 Teeth chatter when exposed to cold because the brain's hypothalamus detects a drop in body temperature and triggers involuntary muscle contractions to generate heat. The muscles of the jaw participate in this full-body shivering response, causing the upper and lower teeth to rapidly tap together! #Science #DidYouKnow #anatomy #ski #snowboard

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Saturday 05 September 2026 19:04:26 GMT