Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...

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 ...

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, ...

Heart rate variability has become the cornerstone of recovery-focused metrics on top sports watches, but Garmin’s ‘HRV Status’ takes it a step further. Once you get to grips with how HRV Status works, ...

The findings suggest that reducing sleep timing variability may help improve metabolic control, but the relationship between glucose levels and sleep variability requires further research. Variability ...