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The Nuance

What You Need to Know About Heart Rate Variability

HRV has emerged as a key indicator of stressand maybe also impending illness

Photo: Robina Weermeijer/Unsplash

Chronic stress is a killer. It’s associated with dysfunctions of the heart, brain, and immune system, and it seems to cause or contribute to all manner of health problems — from heart disease and diabetes…

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