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A swallowed capsule can warn athletes of heatstroke

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Waiting until you feel thirsty is a fantastic way to boil your organs. Elite athletes and military units now swallow literal thermometers—capsules equipped with micro-transmitters that broadcast their internal temperature to a coach's iPad. It’s the ultimate biological cheat code to stop heatstroke before your brain literally starts to cook in your skull.

A swallowed capsule can warn athletes of heatstroke
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