The Journal
Health lab insights
Guides, research, and tips for understanding your lab results and getting more from your health.
Guide
Why Your Lab Results Use Different Units (And What To Do About It)
Different labs use different units for the same tests. Here's why it happens and how to make sense of your results.
Lab Markers
Vitamin D: What Your Lab Results Actually Mean
A practical guide to understanding your vitamin D levels, optimal ranges, and what the numbers actually tell you.
Optimization
Why Tracking Lab Results Over Time Matters More Than Single Tests
A single lab result is a snapshot. Tracking over time reveals the full picture of your health.