Stress Score

Coming soon!
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The Stress Score represents the acute mental stress load on an individual, as measured by the relative changes in heart rate and heart rate variability and can be provided as a daily insight alongside the Daily Readiness.
We use a combination of machine learning informed by selected HRV metrics and context-based reasoning to determine the Stress Score. The Stress Score quantifies the mental stress load from the past 7 days to let the user know if their mental stress load is low, moderate, or high compared to their baseline.
Input Requirements
Providing additional metadata and contextual inputs such as sleep and exercise data can help calibrate the Stress Score for greater confidence, and thus is highly recommended.
Input
Data Type
Description
ibi
array of int
An array for inter-beat intervals; at minimum, 60 inter-beat (R-R) intervals are required.
Input Requirements
Optional Contextual Inputs
Example Input JSON
Minimum requirement of 5 readings on 5 separate days within 10 days to receive a Stress Score insight.
Outputs
The Stress Score is returned as a part of the output response JSON. The output is a 1-3 integer score that corresponds with a low, moderate, or high mental stress load definition. Some definitions and examples are outlined in the below table.
Output
Definition
Example User Text
0
Insufficient data / Error
This indicates either insufficient data or an error. If an error occurs, please check the logs for an additional optional error description.
1
Low
Today is a low stress day. Feel free to take on the day as you normally would.
2
Moderate
You may be feeling a bit more stressed than usual today. It might be helpful to start practicing some stress management activities today like breathing exercises, meditation, or yoga. For best results, stay hydrated and avoid junk food.
3
High
You've been tackling a lot lately! It's time to prioritize relaxation, recovery, and self-love. Activities like light stretching, journaling, and taking a hot bath can bring some mental relief. For better sleep, give yourself a little extra time to decompress before bed.

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Input Requirements

Outputs

Input	Data Type	Description
ibi	array of int	An array for inter-beat intervals; at minimum, 60 inter-beat (R-R) intervals are required.

Output	Definition	Example User Text
0	Insufficient data / Error	This indicates either insufficient data or an error. If an error occurs, please check the logs for an additional optional error description.
1	Low	Today is a low stress day. Feel free to take on the day as you normally would.
2	Moderate	You may be feeling a bit more stressed than usual today. It might be helpful to start practicing some stress management activities today like breathing exercises, meditation, or yoga. For best results, stay hydrated and avoid junk food.
3	High	You've been tackling a lot lately! It's time to prioritize relaxation, recovery, and self-love. Activities like light stretching, journaling, and taking a hot bath can bring some mental relief. For better sleep, give yourself a little extra time to decompress before bed.