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Measuring heart rate variability
What the liquid means and how it reflects your body’s current state
What the liquid means and how it reflects your body’s current state
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Written by Mark
Updated over a week ago

Messages with the liquid help visualize how your body is doing at the moment on the basis of your heart rate variability (HRV).

Your Stress, Energy, and Health scores are calculated based on the standard HRV metrics (RMSSD, SDNN, etc.) shown in messages with a chart.

To make the results easier to understand, we illustrate them with liquid — you can see when you’re literally boiling over with stress, or when your focus is too low for any activity but rest.

The amount of liquid shows your current focus level: the more liquid you see, the higher your focus.

The colors of the liquid are a reflection of your overall well-being — a combination of your stress and energy levels.

The top part of the liquid is your energy. If it’s green, you’re doing great. Yellow signals that you’re not in fantastic shape, but are still doing ok. If it’s red, you may want to wait a few days before taking on a huge project or running a marathon.

The bottom part reflects stress. If it’s blue, you’re in a mellow, low-pressure state. Green means that you’re under just enough stress to get things done. Yellow and red, on the other hand, signal an elevated stress level.

The boiling also reflects your stress level: the more bubbles and waves you see, the more stressed your body is.

The particles flying in and out of the liquid illustrate your energy trend — whether you’re saving energy, using it, or have struck a balance between the two.

When your measurement accuracy is high enough (95–100%), it means that the results on your screen closely reflect what’s going on with your body. Learn more about how to take accurate measurements and what impacts accuracy.

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