M odern smart watches can measure an array of health indicators. Step counts and heart rates sit at the simpler end, while ...

If you’re waking up tired even after seven or eight hours of sleep, your heart rate may be falling too far during the night.

You track your VO2 max and working heart rate, but this underrated biometric may tell you more about your heart and long-term ...

What we physicians tell patients should be based on evidence, but that doesn’t always happen. A good example is when patients ask what their pulse rate should be and we tell patients between 60 and ...

Don’t get me wrong, wrist-based heart rate tracking on smartwatches has improved loads over the years, but if you do anything ...

Walmart has massively marked down a highly-rated pulse oximeter that's designed to monitor your heart rate and blood oxygen levels whether you're at home or playing sports. If you want a better ...

This simple circuit enables you to listen to your heartbeat, for instance, while you are exercising. The transducer used for detecting the pulse is an electret microphone, X1 in the diagram. The model ...