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, ...

Objective Identify key determinants of heart rate variability (HRV) in male athletes aged 14–21 years participating in competitive contact sports and integrate these determinants to define normative ...

A recent study showed that the heart rate variability of a dog and its owner adapt to each other during interaction. High heart rate variability is associated with relaxation, while low heart rate ...

Apple's latest research reveals how models made for speech recognition can determine your heart rate by processing phonocardiograms, which could be used in AirPods. On Thursday, a week after the ...

You might be familiar with HRV—heart rate variability—as a popular training tool for workouts and a biomarker for measuring exercise recovery. Beyond exercise tracking, heart rate variability has a ...

Heart rates are easier to monitor today than ever before. Thanks to smartwatches that can sense a pulse, all it takes is a quick flip of the wrist to check your heart. But monitoring the cells ...

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 ...

It may sound dramatic, but the rate at which your heart is beating plays a key role in how long you’re likely to live. According to expert cardiologists and academic researchers, resting heart rate ...