Many anonymous puzzle pieces become your personal answer.
mypacing is not a fitness tracker. It's a shared tool: everyone who takes part contributes a few data points anonymously — and that's exactly what the “MIE” (mypacing Intelligence Engine) learns from, to understand what precedes a crash and what helps. Here you can see, completely transparently, how that works. And what's actually being analyzed right now.
What the “MIE” is analyzing right now
Honestly: if the numbers here are still small, we're just getting started. Every anonymous contribution makes the “MIE” smarter — and the number bigger.
In three steps: from the crowd to you
You share your daily values anonymously
Only the analyzed daily values from your upload are used — with a random ID instead of your name, an age band instead of your birth date. No name, no email, no device number. A single data point says little on its own — like one piece of a puzzle.
The “MIE” puts the anonymous pieces together
Only when many pieces come together do patterns emerge that no one person could ever see alone: When do crashes cluster? What preceded them one or two days earlier — more activity, less sleep, more heat? What did the days that went better for many people have in common? The “MIE” computes these patterns from the pooled, anonymous data — always in groups, never from individual people.
The patterns sharpen YOUR personal recommendation
What the crowd reveals flows back into your own analysis: your pacing limit, your early warning, your recommendations become more precise the more people take part. If your group turns out to be especially sensitive to heat, for example, mypacing weights that factor more heavily for you specifically. Always as an honest assessment — never as a prediction, never as a diagnosis.
The more anonymous puzzle pieces, the clearer the picture — for every single person. That's the whole point of the community.
Exactly which data is processed
Full transparency — these are the data sets that flow into the analysis (anonymously). Nothing more.
| Resting heart rate | The basis of the pacing limit (resting heart rate + 15) and a sign of recovery or overload. |
| Heart rate throughout the day | How much time is spent above the exertion limit — the core of pacing. |
| HRV | Heart rate variability as a measure of how well the autonomic nervous system is recovering. |
| Sleep | Duration and quality — unrefreshing sleep is closely linked to crashes. |
| Activity & walking heart rate | Steps (deduplicated across sources, no double-counting between phone and wearable), active calories, distance, floors climbed and exertion as a possible trigger for PEM/crashes. |
| Blood pressure, oxygen saturation & respiratory rate | Additional circulatory and breathing values, where your device records them — further signs of recovery or overload. |
| Body measurements | Weight, body fat percentage, BMI — slow-moving baseline values, not day-to-day triggers, but part of the overall picture. |
| Temperature & humidity | Environmental factors at your approximate location — heat often intensifies symptoms. |
| Symptoms | Symptoms you voluntarily log in Apple Health (e.g. exhaustion, dizziness, headache) — help place patterns in context. |
| Cycle data (voluntary) | Only if you log it in Apple Health and grant permission — for some people it can be linked to crash patterns. |
| Crash markers | Crash days you mark yourself — they're what makes the patterns learnable in the first place. |
| Interventions & triggers | What helped and what came before — voluntary, by category. |
Resting heart rate
HRV
Sleep
Activity
Blood pressure
SpO2
Respiratory rate
Body measurements
Temperature
Humidity
Symptoms
Cycle (voluntary)
Crash markers
Why we show this so openly
Because trust is everything in this project. Anyone who uses mypacing extends a double advance of trust: with a possible donation — and with their health data. Both are precious. That's why you should always be able to see what for: every data point above is a piece of shared hope that together we can find answers no one could find alone. No corporation profits from it. It belongs to the people who use it.
And if you'd like, help make sure it can keep going:
❤ Support mypacing