Evidence before escalation
Decision Guides
These guides are designed to help you ask better questions before choosing a care model, ordering more testing, or acting on a single health metric.
Complete diagnostic guide
Understand your diagnostics
Explore every diagnostic category in our memberships: why it may help, what it measures, how it works, and how to understand the results.
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How to Choose a Longevity Clinic
Longevity clinic is an unregulated label. Learn how to evaluate physician responsibility, testing philosophy, incentives, continuity, and red flags.
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Executive Health Assessment vs. Annual Physical
What the evidence says about checkups, what an executive assessment adds and risks, and why follow-through matters more than testing depth.
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What Physician-Led Longevity Care Should Include
The testable components of physician-led longevity care: responsibility, interpretation, prioritization, licensure, coordination, and reassessment.
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Understanding Advanced Biomarkers Before You Order More Tests
Why large panels make false flags likely, which advanced markers have real evidence behind them, and how to interpret results without overreacting.
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What VO₂ Max Can and Cannot Tell You
The evidence linking VO2 max to longevity, how much training can change it, what shifts the number, and what the score cannot establish alone.
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Biological Age Testing: Five Limits to Understand
How epigenetic clocks work, what the evidence supports, the reliability problem consumer reports rarely disclose, and how to use a score responsibly.
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