Research, reviewed.
Without the noise.
Articles, research digests, expert conversations, and protocol deep dives. Every claim is cited. Every link is verified. Published at launch and updated as the research evolves.
What VO2 Max Actually Predicts — And How to Improve It
VO2 max has emerged as the single strongest predictor of all-cause mortality — stronger than smoking, diabetes, or hypertension. Here is what the research says about how to measure it, what counts as a meaningful improvement, and the training approach with the most evidence behind it.
The Sleep Architecture Most Professionals Are Missing
Most sleep tracking focuses on duration. The research on longevity and cognitive performance points to something more specific.
Cold Water Immersion: What the Evidence Actually Shows
A review of the clinical literature on cold exposure — separating the outcomes with solid evidence from the ones that are more contested.
AI-Driven Health Diagnostics: What Is Ready to Use Now
A practical guide to the AI health tools that have clinical validation behind them and the ones that are still experimental.
Understanding Biological Age Tests: A Critical Review
Epigenetic clocks, telomere testing, and biological age calculators — what they measure, what they do not, and how to interpret results.
HRV Fundamentals: How to Measure and What to Do With the Data
Heart rate variability is a useful signal — but most people are tracking it incorrectly and interpreting it without context.
CGM Beyond Diabetes: What Continuous Glucose Data Tells Healthy People
Continuous glucose monitors are increasingly used by people without diabetes. Here is what the data can and cannot tell you.
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