University of Washington researchers built a smartphone app that tracks fetal heart rate as accurately as clinic tools using only the phone's speaker and mic, though it's not ready for release yet.

Tracking your heart rate with a heart rate monitor (HRM) during your runs is one of the most powerful ways to optimize your training, whether you're a dedicated marathoner, power triathlete, or just ...

Jennifer Adamy, a 43-year-old cardiac nurse living in New Smyrna Beach, Florida, was very familiar with the signs of heart problems. So, when she started experiencing symptoms of irregular heart ...

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the best heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...