Engineers are in the early stages of harnessing Wi-Fi as a way to monitor heart rates, but don't expect to use your home router anytime soon. When you purchase through links on our site, we may earn ...
It’s one of your body’s most basic vital signs. Andrey_Popov/Shutterstock.com Anne R. Crecelius, University of Dayton The rise of wearable fitness trackers has ...
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