Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...

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, ...

This American Heart Month, cardiologist Dr. Nidal Ganim explains how smartwatches and rings can track your heart health and ...

Why the wild freakish heart rate and HRV scores Van der Poel discussed in a recent podcast mean everything and nothing, all ...

Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate. As a ...

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 ...

Real-time and early detection of minute changes in the functioning of the cardiovascular system is crucial for managing ...

When one partner is stressed, the other feels it too—not just emotionally, but on a biological level. New research on heart rate synchronization helps explain how.

It’s been known for decades that heart rate variability (HRV) during labor signals how a fetus is responding to stress. Lower HRV—a lower variation in heartbeats—is even a risk factor for sudden ...