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Hydration sensor alerts wearer to urgent water need
Much like the low-fluid warning light in a car, a new wearable sensor linked to a smartphone app is set to alert people when their hydration levels are dangerously low. The device could be a big help to athletes, first responders, and many others.
Much like the low-fluid warning light in a car, a new wearable sensor linked to a smartphone app is set to alert people when their hydration levels are dangerously low. If that person doesn't get fluids on board, more serious symptoms can develop, including a rapid heartbeat, low blood pressure, confusion, delirium and – in the most severe cases – shock. Seeking to exploit this fact, researchers at the University of Texas at Austin developed a portable battery-powered sensor that affixes to the bicep, sends an undetectable current through the tissue and measures the resultant resistance.
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