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

Splashing cold water on your face triggers an ancient survival reflex — here's what it actually does Have you ever tried this when you felt anxious or overwhelmed? Did it actually work?

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Splashing cold water on your face triggers an ancient survival reflex — here's what it actually does Have you ever tried this when you felt anxious or overwhelmed? Did it actually work?

Transcript

Cold water on your face slows your heart — fast. It's the dive reflex — mammals have it to survive underwater. Cold triggers your vagus nerve, slowing your heart and easing panic. Next time you're overwhelmed, try it — it may actually help.