The Morning Stability score
The Morning Stability score gives you a quick snapshot of how steady your body’s signals are—combining four key factors each day:
Resting Heart Rate (HR)
Heart Rate Variability (HRV)
Your self-reported sleep quality from your Morning check-in
Your self-reported symptom severity from your previous day's Evening check-in
Each morning, we compare these factors to your personal 90-day baseline.
Your score—ranging from 1 to 5—reflects how stable each of these factors is relative to your usual patterns:
1-2: Out of balance. More than one of your metrics is unstable.
3: Slightly out of balance. Some metrics are trending slightly away from your baseline.
4: Stable. There is stability across all metrics. You're at a stable baseline.
5: Stable and improving. Stability across all metrics, with one or more of your metrics trending positively.
How the Morning Stability score is calculated
We use a flag system for each of the four factors. If any one factor is significantly out of range, it will influence the overall score. This approach ensures the score gives a conservative and safety-first view of your current stability.
In short: if something is out of balance, your score will reflect that—even if the other factors look normal.
Important: Use the Morning Stability score to support making informed pacing decisions rather than as feedback on your overall condition.
Taking your Morning Stability score each day
The Morning Stability score is part of your Morning check-in. You’ll find your check-in on the Today page, under Today’s Tasks. Here are some recommendations on when and where to take your Morning Stability score each day:
Best time: Right after you wake up—ideally before you get out of bed. This helps capture your true resting heart rate.
Best position: Try to do it around the same time and in the same position each day for more consistent data. Aim for a calm, rested state to get the most accurate reading. Lying down is often the most reliable position, especially if you're sensitive to changes in posture.
Whatever your routine looks like, try to stick to it as best you can—but even if it gets disrupted, it's still valuable to check in whenever and however you can.
Understanding HRV and Resting Heart Rate
If you’d like more detail, you can tap to expand your HRV and Resting Heart Rate scores.
The dotted vertical line represents your 14-day average.
The high and low bounds show your normal fluctuations around that average.
This lets you see how today's numbers compare to your recent trends—not just the long-term baseline.
