11 articles

Diagnostic Tests

Reviews of at-home and lab diagnostic panels for longevity optimisation.

Featured

Best At-Home Blood Tests for Longevity

A research-based comparison of at-home blood testing services by biomarker coverage, price, and physician support

Longevity Intel editorial4 min read

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ApoB and Lp(a) Tests: What Guidelines Say and What They Cost

ApoB and Lp(a) blood tests: what each measures, what US and European guidelines say about testing, and direct-to-consumer lab prices checked 2 Oct 2026.

5 min readRead article

Function Health vs Superpower: What Each Membership Includes

Function Health vs Superpower from their own pages: biomarker counts, price and billing, state availability, results delivery and clinician-review claims.

6 min readRead article

Omega-3 Index Test: What It Is and What It Costs

The Omega-3 Index blood test: what it measures, its three prices, what the evidence says about high levels, and how the cost compares with fish oil.

4 min readRead article

DEXA Scan for Body Composition

DEXA scanning measures muscle mass, bone density, and visceral fat with clinical precision

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Biological Age Tests Compared: Price and What Each Measures

TruDiagnostic TruAge, Elysium Index, TallyAge and GlycanAge compared on price, sample, what they measure and what the research says about reliability.

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Microbiome Testing

Your gut microbiome influences immunity, metabolism, inflammation, and even cognition. Microbiome testing has arrived at consumer level

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CGM Guide for Non-Diabetics

A complete guide to interpreting continuous glucose monitor data for longevity and metabolic health, what metrics matter, what's normal

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HRV Guide

A source-linked guide to RMSSD, wearable measurement limits, personal baselines, and when HRV should, and should not, change a decision.

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The 12 Longevity Biomarkers You Should Be Tracking (And

Not all blood tests are equal. These 12 biomarkers predict healthspan better than standard annual panels, with reference ranges optimised for longevity

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VO2 Max Testing

VO2 max is the strongest independent predictor of all-cause mortality. Learn what it is, how to test it, and exactly how to improve it.

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Related tools for diagnostics

Best longevity labsWhat to order first Biomarker guideWhat each number means At-home blood testsPanels compared Beginner pathTest before you stack