Teemu Arina

Co-author of the Biohacker’s Handbook. Writes the biomarker guides published here.

Why this page exists

Health content should say who wrote it. These guides describe what blood markers mean and what changes them, which is the kind of writing that deserves a name attached rather than an anonymous brand voice.

A note on what this is not. I am not a medical practitioner, and nothing published here is medical advice. The guides explain what a panel measures and what the published literature and reference ranges say about it. Decisions about your own health belong with you and a qualified practitioner who can see your full picture.

How these guides are written

Every reference range on this site is taken from the same source the lab report uses, so a guide can never disagree with the number a reader is holding. Where a marker can be measured in more than one way, the guide states which one the kit uses, because the ranges differ.

Dosing figures and mechanisms are attributed where a named source exists, such as EFSA intake figures or a specific published analysis. Where the evidence is mixed, the guides say so instead of picking a side.

Published guides