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.

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 ...

It might be time to start listening to your heart. In recent years, millions of Americans have incorporated wearable health ...

Did you know you can customize Google to filter out garbage? Take these steps for better search results, including adding my work at Lifehacker as a preferred source. Besides measuring heart rate and ...

A few of the most important insights are heart rate variability (HRV), which describes the difference in time between the beats of your heart, and resting heart rate (RHR), which is the number of ...

Discover how smart rings 2026 track sleep, HRV, and fitness metrics. Compare Oura Ring 4, accuracy rates, battery life, and ...

The best heart rate monitors will track your heart rate comfortably, consistently and accurately ...

Tracking key heart health metrics every day helps you understand how your lifestyle affects your cardiovascular system and empowers you to take proactive steps toward better heart health. Heart ...