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

If you wear a fitness tracker, you’ve likely seen a stat labeled “HRV” pop up on your screen. But what does it mean, and does it matter? Short for heart rate variability, HRV has become a popular ...

Heart rate variability during sleep can predict stroke, depression or cognitive dysfunction years in advance, according to new research presented at the European Academy of Neurology Congress. The ...

A post hoc analysis found that the effect of transcutaneous auricular vagus nerve stimulation (taVNS) on cardiac and inflammatory stress responses was critically dependent on variability in baseline ...

DALLAS, TX — Visit-to-visit variation in systolic blood pressure (BP) and mean heart rate (HR) are both independently related to cognitive dysfunction and decline in patients at high cardiovascular ...

The rhythmic beating of your heart tells a more complex story than most realize. While standard health assessments typically focus on heart rate, the subtle variations between individual heartbeats ...

The Oura Ring does not directly measure blood pressure. This feature is not currently available on the device. Oura focuses ...

Heart rate variability measurements can tell us a lot about our state of readiness to train and are central to optimising ...