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What Happens to Your Body When You Splash Cold Water on Your Face

Splashing cold water on your face triggers a real survival reflex — here's what's actually happening Have you ever tried this when you're stressed or panicking? Did it actually help?

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Splashing cold water on your face triggers a real survival reflex — here's what's actually happening Have you ever tried this when you're stressed or panicking? Did it actually help?

Transcript

Your face can actually hack your nervous system. Mammals share a reflex — the diving reflex. Cold water on your face can slow your heart rate — fast. It activates the vagus nerve, dialing down your stress response. Next time you're overwhelmed — try it. It really works.