Keeping tabs on your heart rate could be as easy as putting a sticker on your skin. Nanoengineering graduate students at UCSD are working to develop a soft ultrasonic sticker that can monitor deep ...
Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...
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