M odern smart watches can measure an array of health indicators. Step counts and heart rates sit at the simpler end, while ...

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.

LONDON — Wearables measure several aspects of health, and heart rate variability might be one of those. It may be surprising when your device informs you that your heart rate variability is high or ...

Healthy hearts are adaptable, and heartbeats exhibit complex variation as they adjust to tiny changes in the body and environment. Mass General Brigham researchers have applied a new way to measure ...

Researchers at Google say they used existing noise-canceling headphones to get pulse readings by updating their software. Researchers at Google say they used existing noise-canceling headphones to get ...

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 ...

A new study from Mass General Brigham researchers reveals that heart rate complexity could serve as an early indicator of cognitive decline in older adults. The research, published in the Journal of ...

Heart rate variability measurements can tell us a lot about our state of readiness to train and are central to optimising ...

Heart rate variability (HRV) typically increases with parasympathetic activation (rest-and-digest response) and decreases with sympathetic activation (fight-or-flight response). The autonomic nervous ...