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 ...

The rhythmic beating of your heart tells a more complex story than most realize. While standard health assessments typically focus on heart rate, the subtle variations between individual heartbeats ...

It turns out, there’s a link between your hydration and heart rate variability. Here’s a look at the science. The post Science reveals how hydration can influence your heart rate variability appeared ...

Heart rate variability during sleep can predict stroke, depression or cognitive dysfunction years in advance, according to new research presented at the European Academy of Neurology Congress. The ...

Sanjay Bhojraj, a cardiologist who has spent 20 years treating heart attacks, shares evening habits that influence heart health. Here are the routines that can improve blood pressure, glucose control, ...

New research suggests that higher bedroom temperatures may be linked to a higher heart rate and lower heart rate variability.

Mathieu van der Poel set pulses racing in the endurance and wellness community when he shared his freakish resting heart rate and HRV data last week. “A resting heart rate of 38 and baseline HRV of ...