The education arm of N1 Health. One guide on how your body works, and one on what the numbers on a blood report mean.
Free forever, for anyone, anywhere. No sign-up, no account, no paywall, and no limit on how much of it you read.
Selling blood tests is what pays for this. That is the only link between the testing side and the guides, which are not a preview of something you have to buy later.
The 2 guides are the Body Guide and the Biomarker Guide. The Body Guide explains the system, the Biomarker Guide explains the number. Each one points at the other where it helps, so you can start from either side and end up with the whole picture.
Body Guide
What each system in your body actually does. Kidneys, liver, thyroid, heart and blood vessels, blood cells, sex hormones, blood sugar and metabolism, iron, inflammation and the rest, each on its own page.
Start here for the foundation. It covers why a blood profile groups the markers it does, what changes when a system is under strain, and what a blood test cannot see.
Biomarker Guide
Every marker, one at a time. What it measures, why anyone tests it, what moves the number, and how far a repeat has to shift before the change is real.
Start here if you have a report in front of you and a figure you do not recognise. Where there is an agreed number we give it and say where it came from. Where there is not, we say so.