The Galaxy Watches, including the Watch 4, use a PPG sensor. The technology is very efficient at measuring your heart rate ...

The people who monitor hospital patients’ vital signs are often not nurses but “telemetry” technicians. Critics say HCA's ...

Tracking your heart rate during workouts is one of the best ways to maximize each session -- while also making sure you don't push yourself past your limits. But the key to using heart rate data ...

When used correctly, the best heart rate monitors can help you unlock a new level of athletic performance, no matter whether you're cycling, running, or performing any other endurance sport.