A series of low heart rate alerts on her Apple Watch prompted a woman to get treatment — and discover she had an undiagnosed brain tumor that now needs constant monitoring. Apple Watch has an ECG app, ...

Smartwatches and fitness trackers log a lot of health data, but it’s important to know how to interpret that information. A 23-year-old man learned he had sleep apnea after paying attention to the ...

Computer Science and Engineering Ph.D. student Nayan Bhatia demonstrates Pulse-Fi, technology that uses WiFi signals to measure a person's heart rate. Heart rate is one of the most basic and important ...