Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and recovery. Higher HRV indicates well-being, while lower HRV signals stress.

Genetics can dictate whether your HRV naturally tends to be on the higher or lower end, but positive lifestyle choices, ...

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 ...

Most patients (56%) had low A1c variability (0%-0.49% per quarter), and about one third had moderate variability (0.5%-1%). The lowest risk for the outcomes of MI ...

Stress is an imprecise term and a difficult thing to measure. But technological advances mean it’s now simple to capture what is perhaps the best proxy for our response to it: heart rate variability, ...