Here’s what HRV is, how it works and what can cause it to rise or fall.

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 ...

A new study led by researchers from Murdoch University's School of Psychology, Personalized Medicine Center, and Center for Healthy Aging, Health Futures Institute has found that heart rate ...

Whoop is a top fitness and health tracker – and one of my favorite devices at Wareable. But if you want to check your heart rate, it can be a little hard to find. I’ve been using Whoop for years – so ...

We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication. While most fitness watches and other devices (like smart rings) can measure ...

Thanks to wearable devices, you can use all sorts of metrics to keep track of your health. You can check your weight, blood pressure, the number of steps you take, heart rate and more as you go about ...

Heart rate is one of the most valuable physiological metrics for runners because it provides objective real-time insight into how hard your body is working. Unlike pace or distance, which are external ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. July 9, 2025 Add as a ...

New research from the University of St Andrews debunks the theory that Heart Rate Variability (HRV) is linked to aggressive behavior. HRV, or heart rate variability, measures the variation in time ...

Recently released Beats Powerbeats Pro 2 wireless earbuds face major criticism due to substantial limitations in their heart rate monitoring capabilities, according to fitness reviewers and user ...