Atrial fibrillation (AF) is a common arrhythmia associated with increased morbidity and mortality among intensive care unit (ICU) patients. This study aimed to evaluate heart rate fluctuation (HRF) ...

To investigate the association between blood pressure variability (BPV) and mortality (in-hospital and 30-day) among heart failure (HF) patients, and to examine these associations across patient ...

Here’s what HRV is, how it works and what can cause it to rise or fall.

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 ...

Sudden adult death syndrome is still largely a mystery to medical professionals. Having certain medical conditions may make ...

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 ...

A post hoc analysis found that the effect of transcutaneous auricular vagus nerve stimulation (taVNS) on cardiac and inflammatory stress responses was critically dependent on variability in baseline ...

Tracking key heart health metrics every day helps you understand how your lifestyle affects your cardiovascular system and empowers you to take proactive steps toward better heart health. Heart ...

Did you know there’s a number that might let you know how stressed you are, whether you have a cold coming on and how to get into the zone if you’re about to present at a big meeting? You can find ...

Heart Rate Variability, often shortened to HRV, has become one of the most popular recovery metrics in fitness. While resting heart rate tells you how many times your heart beats per minute, HRV ...

A proliferation of data from wearable technology is telling people how to optimize their job performance. Is that a good thing? BEN VOLDMANCredit... Supported by By Noam Scheiber Dr. Ravi Solanki ...