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 ...

M odern smart watches can measure an array of health indicators. Step counts and heart rates sit at the simpler end, while ...

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 ...

According to a paper published in the scientific journal Frontiers, heart rate variability (HRV) is linked to “exceptional longevity.” The metric was also mentioned in Netflix’s Don’t Die, a ...

You probably check your step count religiously, maybe glance at your heart rate during workouts, and might even pay attention to how many calories your fitness tracker claims you’ve burned. But ...

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 ...

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 ...