Why a cold towel on your head makes you hotter:
- Drape a cold towel over your head neck or torso and your core temperature goes up more than if you'd done nothing
- Your thermostat is the medial preoptic area of the hypothalamus sitting just behind your nose
- Cool most of your body surface and it reads the environment as cold then sends hormones and chemicals to heat you up
- Cool the upper half of your face the palms of your hands and the bottoms of your feet instead
- Those are the portals that pull core temperature down fast enough to stop heat stroke
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