Heart rate is one of the most basic and important indicators of health, providing a snapshot into a person’s physical activity, stress and anxiety, hydration level, and more. Traditionally, measuring ...

Imagine checking your heart rate without strapping on a smartwatch or chest monitor. This future might not be far off. Engineers at the University of California-Santa Cruz developed a system that uses ...

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the top heart ...

A few weeks back, we reported on a research group that figured out how to measure heartrate using perturbations in WiFi signals. [Nick Bild] was interested in this so-called “Pulse-Fi” technique, but ...

When a Wi-Fi router sends a signal to a device like a smartphone or laptop, that signal’s radio waves pass through other objects on the way. The objects absorb some of that wave, resulting in ...

Pulse-Fi works by taking advantage of the way Wi-Fi signals interact with the body. Imagine checking your heart rate without strapping on a smartwatch or chest monitor. This future might not be far ...