Utilizing information from smartwatches, a new algorithm reads heart fee as a proxy for physiological or psychological stress, potentially alerting wearers they're falling ill before they've symptoms. Of 84 individuals who had been diagnosed with COVID-19 through the examine, the algorithm flagged 67. Most alerts fell into other categories, such as travel, consuming a big meal, menstruation, psychological stress, intoxication or non-COVID-19 infections. While many people rarely give…