Microbiome Tests Explained: Samples, Scores and Availability
Understand microbiome samples and company-generated scores, including ZOE’s regional availability and Thorne’s testing transition.
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Tests and Tech
Testing, tracker, wearable, monitor and health-technology product guides comparing exact products and services by what they measure, validation evidence, interpretation limits and data context.
HRV and Readiness Tracker Guide
Compare WHOOP 5.0, Oura Ring 4 Readiness, Garmin Venu 4 Body Battery and Apple Watch Series 11 Vitals.
Read articleSmart Ring Comparison Guide
Compare Oura Ring 4, Samsung Galaxy Ring, RingConn Gen 2 and Ultrahuman Ring Pro by subscription, ecosystem and evidence limits.
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Home Blood Pressure Monitor Guide
Compare four upper-arm monitors by cuff fit, display, memory, power and optional app connections.
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Home Body-Fat Scale Accuracy Guide
Compare Withings Body Scan, Withings Body Comp, Tanita RD-545, Omron BCM-500 and DexaFit DEXA scanning.
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CBT-I Apps and Sleep Programs Guide
Compare SleepioRx, VA Path to Better Sleep, CBT-i Coach and app-based CBT-I programs by evidence route, access model and limits.
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CGMs Without Diabetes: Stelo and Lingo Explained
Understand glucose-sensor readings, app feedback and eligibility through the Stelo and Lingo examples.
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Vitamin D Testing Guide
Compare vitamin D kits, lab draws and bundled panels, with current availability clearly identified.
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At-Home Cognitive Tests Guide
Compare BrainCheck Assess, CogniFit, Creyos and Quest’s amyloid-ratio assay by format, access and interpretation.
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Biological Age Wearables Guide
Compare Garmin Fitness Age, Apple Watch Cardio Fitness, Oura Readiness, WHOOP Healthspan and Fitbit metrics as exact product ecosystems.
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