The most useful reference range you will ever have is the one where the only person in the study is you.
This is the hands-on version of the idea at the center of A Map of Cliffs: the standard workup compares you to the population, but the thing you can feel is your drift from your own baseline. You cannot detect that drift without knowing where your line started. So this guide is about putting the line on paper.
Why a personal baseline beats a population range
A resting heart rate of 64 means almost nothing in general. It means a great deal if yours was 52 two years ago. The population range answers whether you are unusual compared to everyone. Your baseline answers whether you are still you, functioning well. Those are different questions, and the second one is usually the one you are actually asking.
The few numbers worth holding
Keep the list short enough that you will actually keep it. More numbers do not make a better map. A map you abandon by Thursday is worse than five numbers you hold for a year.
A workable starting set:
- Morning resting heart rate. Taken the same way, ideally before getting up.
- Weight. Tracked as a trend line, not a daily verdict. The slope is the signal, not any single morning.
- Sleep. Bedtime, wake time, and a one-to-ten sense of how rested you felt.
- Energy. A simple one-to-ten for the day.
- One capacity measure. Something physical you can repeat: a comfortable walk or run distance, a lift, a flight of stairs without losing breath.
That is enough. If you want fewer, keep resting heart rate, sleep, and energy.
A template you can copy
| Date | Resting HR | Weight | Sleep (bed / wake) | Rested 1-10 | Energy 1-10 | Capacity |
|---|---|---|---|---|---|---|
Paste it into a notes app or a spreadsheet. The tool does not matter. The dated line does.
How often, and how to keep it healthy
A few times a week is plenty. Daily is fine if it stays easy, but this is orientation, not surveillance. The goal is to notice your own roads, not to audit yourself into anxiety. If tracking starts to feel like pressure, or if a number starts to run your mood, that is a signal to track less often, not more. A good map makes you check it less over time, not more.
Hold weight as a trajectory, not a target. If tracking weight or food ever starts to feel charged or compulsive, step away from that metric and talk to someone you trust. The point of every number here is gentler awareness, never a stick to beat yourself with.
How to read it: slopes, not points
A single reading tells you almost nothing. A direction held over weeks tells you a lot. When something drifts steadily for a month or two, that is information, even when each individual value still looks normal. You do not need to panic at a slope. You need to notice it, because noticing is the one thing an eight-minute visit structurally cannot do for you.
When a slope is clear and persistent, that is the moment to bring it to a clinician, with your numbers in hand. A trend you can show is worth far more than a vague "I just feel off."
Where this connects
Your sleep entries feed the Sleep Regularity Protocol. Your held lab values feed Lab Trajectory 101. And once you have baselines, you can actually test changes honestly, which is what Run Your Own Experiment is for.
Precision Therapeutics is building the map of roads: an instrument that learns your baseline, watches your trajectories, and is honest about how clearly it can see you. It starts with a 90-second check-in called the Pulse. Free, no account.
This guide is for general education and is not medical advice. If something feels wrong, talk to a clinician who knows you.