Heart rate variability (HRV) is the variation in the time between two consecutive heartbeats over a specific period. Doctors may use HRV as an indicator for certain aspects of a person’s health, ...

The Oura Ring currently tracks a variety of health metrics like sleep quality, activity levels, heart rate, heart rate ...

What Does a High Resting Heart Rate Mean? The ups and downs of HRV can be so tricky to navigate, in fact, that most doctors, even cardiologists, don’t factor it into treatment plans for their patients ...

These days, it may seem like there’s a million different data points that you’re supposed to keep track of—hello, steps, sleep, and recovery scores!—and it’s difficult to know which ones are worth ...

Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...