In the Oura app, tap the three lines in the top left corner. From the menu, select Trends, then tap Heart Rate Variability.

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 ...

Any parent will tell you that raising a child isn't easy. While the experience can be filled with joy and love and ...

If you wear a fitness tracker, you’ve likely seen a stat labeled “HRV” pop up on your screen. But what does it mean, and does it matter? Short for heart rate variability, HRV has become a popular ...

Heart rate variability biofeedback (HRVB) can reduce negative affect, craving, and substance use among individuals in early ...

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 ...

A higher heart rate variability suggests your body is calm but alert, like a boxer bouncing from foot to foot. Did you know there’s a number that might let you know how stressed you are, whether you ...

Your smartwatch could soon count every heartbeat you ‘spend’ each day. But would that number actually mean anything?

Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...

A recent study showed that the heart rate variability of a dog and its owner adapt to each other during interaction. High heart rate variability is associated with relaxation, while low heart rate ...