S1 is the first heart sound that doctors can hear using a stethoscope. The vibrations that occur when the mitral and tricuspid valves in the heart close produce the S1 sound. There are two common ...

When a doctor listens to the heart of a person with a heart murmur, they may hear a whooshing, swishing, humming, or rasping sound. This is due to rapid, turbulent blood flow through the heart.

Cardiovascular diseases remain a global health crisis, spurring an urgent demand for innovative diagnostic tools that enable early detection and effective treatment. Wearable heart sound devices ...

From watches to chest straps, a heart rate monitor can optimize your workouts. Polar, Garmin, and Fitbit top our list. See what else we’re wearing to run, swim, cycle, and more. Heart rate monitors ...

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 ...