Sunday, November 12, 2017

Heart rate variability

Humans have studied heart rate variability (HRV) in its simplest form for thousands of years simply by noticing the quickening of the pulse rate after the increase of exercise or other forms of arouse states.

Heart rate variability is defined as the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat interval.
HRV serves as important index of pathological changes and is use to diagnose cardiovascular risk in man. The more regularly one’s heart beats, the lower is one’s HRV, and the less regularly one’s heart beats, the greater is one’s HRV.

It is also known to predict illness before any physical symptoms emerge, which means that it can also be used to quantify risk of ill health.
Heart rate variability
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