Blood Pressure Monitor Balance - 1 Each

In the same way the blood pressure monitor and cuff can detect and display heartrate, it can also determine heartrate variability. Recent research studies state heartrate variability may provide insight into physical stress levels. This device uses heartrate data in partnership with the following equation to evaluate PSI (Physical Stress Index). PSI = SDNN/RMSSD SDNN= Standard deviation of the beat-to-beat (NN) intervals. RMSSD= Root mean square of successive differences between normal heartbeats. *BIOS Medical is the #1 Canadian Blood Pressure Manufacturer, according to 2021-2022 Nielsens Sales Data for Thermor Ltd. BIOS Medical is a brand by Thermor Ltd