Algorithms can now detect your heart rate and stress levels over video chat

Israel-based Binah.ai is one of several companies that are using artificial intelligence to gauge a bevy of vital signals over video. The technology is part of a big push to move healthcare out of the doctor's office and into the home through telemedicine. The company also has plans to eventually add blood pressure to its roster of services. How can an algorithm detect all of these vital signs through a video? Binah.ai has implemented a technology called plethysmography, which uses cameras to detect slight changes in facial coloring that indicate pulse.