For the over 1 million Americans who survive severe traumatic brain injuries each year, the road to recovery is often long and challenging. Disruption of the autonomic nervous system, which controls ...

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.

Brazilian researchers reveal that even mild cases of COVID-19 can temporarily reduce heart rate variability, with stress on the autonomic nervous system lasting up to six months—especially in older ...

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 ...

These days, it may seem like there’s a million different data points that you’re supposed to keep track of—hello, steps, sleep, and recovery scores!—and it’s difficult to know which ones are worth ...

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, ...