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Why Cold Water On Your Face Slows Your Heart

Why Cold Water On Your Face Slows Your HeartSplash ice-cold water on your face while holding your breath and the pulse can drop instead of race. The episode walks through the three-part mammalian diving response—apnea, bradycardia, and peripheral squeeze—how clinicians use cold on the face as a vagal maneuver, why colder water tends to strengthen the effect in humans, and the open 2012 hypothes…

Duration: 6:47

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