New app detects opioid overdose

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Spotted: Researchers at the University of Washington have developed a phone app that monitors a person's breathing rate and detects signs of an overdose. The algorithm for a smartphone, called Second Chance, monitors changes by sending out inaudible sound waves from the phone. The waves detect the person's breathing rate and sends that information back to the phone. If there are no signs of breathing, or if a person's breathing has slowed to seven breaths a minute or less, the app detects an overdose. It can monitor someone's breathing from up to three feet away. In tests at a supervised injection facility in…

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