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The Globe and Mail David Green Published April 16, 2021 Bookmark For the past six years, Toronto-based NuraLogix has been working on technology that translates blood flow patterns on a person’s face into insights about their health and psychology. Based on a 30-second video, the company’s app uses artificial intelligence to track changes in the translucency of facial skin, enabling health professionals to remotely monitor high blood pressure and cardiovascular disease. These measurements can be potentially used to determine an individual’s emotional state – and even detect lies. This leads to another, more sinister potential application for the technology as a public security tool. ....