What is heart rate variability (HRV)? As popular as the metaphor may be, a healthy heart doesn’t beat as regularly as a metronome. In fact, it changes its rhythm with each beat. Heart rate variability ...

Micro-fluctuations in the time between heartbeats are proving a helpful indicator of mental health, stress levels and exercise capacity. They could even provide insight into how well you are ageing.

Thanks to wearable devices, you can use all sorts of metrics to keep track of your health. You can check your weight, blood pressure, the number of steps you take, heart rate and more as you go about ...

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 ...

HRV powers modern smartwatch “recovery scores,” but experts warn most users misinterpret what it actually measures about ...

What is heart rate variability? Heart rate variability (HRV) is a physiological marker of how we experience and regulate our emotions. But before we discuss HRV and emotion regulation in greater ...

Wearable technology provides athletes with a constant stream of metrics like heart rate variability and recovery, often ...

Physiology meets bedtime: Lower heart rate variability, tied to reduced stress adaptability, is linked to greater bedtime procrastination. How study was done: Researchers measured HRV in 135 adults ...

Researchers have used mathematical analysis tools to study the effect of classical music on a fetal heartbeat and identify patterns in heart rate variability. They recruited 36 pregnant women and ...

Menopause causes a drop in estrogen, which can lead to changes in heart rate, such as palpitations or fluctuations in heart rhythm. Menopause marks a significant transition in a person’s life, ...