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Biometrics
What your numbers cover, how fresh they are, and how they moved. Heart rate now is the freshest value Garmin offers.
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Pulls today and yesterday.
Your data
HRV
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Resting heart rate
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Heart rate now
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Stress
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How is this stress number calculated?
Garmin’s manual says your watch “analyzes your heart rate variability while you are inactive to determine your overall stress.” It reports 0–100: 0–25 is a resting state, 26–50 low stress, 51–75 medium stress and 76–100 high stress. Training, activity, sleep, nutrition and general life stress all affect it.
Garmin does not publish the formula. The method comes from its partner Firstbeat. Firstbeat’s white paper describes it in general terms: it takes the time between heartbeats, splits the day into stretches, and labels each stretch as exercise, recovery or stress with a decision tree. A stretch counts as stress when heart rate is up, HRV is below your own resting level and breathing is low for that heart rate. Your age, sex, height, weight and activity level set your personal range. That paper is from 2014 and may differ from what your watch runs today.
This screen shows today’s average so far, not a live reading, and lower HRV generally means a higher score.
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Studies
The research digests sent to JEV with every evaluation, exactly as it receives them.
These are short digests of the papers, written from targeted reads and not yet checked by a person. To change them, edit the files in studies/digests and rebuild.
Digests
Settings
Auto-evaluate
Off by default. It runs only while this tab is open, and turning it on runs one evaluation right away. Each run sends your profile, biometrics and the research studies to JEV.
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System One AI VNS Evaluator provides general wellness guidance, not medical advice.
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