Whether due to stress or an intense cardio workout, most of us have felt our heart racing from time to time. A rise in your heart rate can be perfectly normal given outside circumstances. However, ...

Heart rate variability (HRV) is a known risk factor for mortality in both healthy and patient populations. There are currently no normative data for short-term measures of HRV. A thorough review of ...

If you own a smartwatch or have been around people who own smartwatches, you may have encountered a metric called HRV, or heart rate variability. On the internet and social media, it certainly seems ...