Understand what you measure
Make sense of biomarkers, tests and health trends
Understand laboratory results, wearable signals, screening notifications, reference ranges and changes over time without treating one number as a diagnosis.
34 published guidesBrowse the complete library
Tests, Biomarkers & TrackingPublished guides
Tests, Biomarkers & Tracking
34 results
Quick guideBlood tests and biomarkersHow to read blood work without panicStart with units, ranges, trends and the wider pattern.
Quick guideBlood tests and biomarkersComplete blood count (CBC)Read red cells, white cells and platelets as a connected panel.
Quick guideBlood tests and biomarkersComprehensive metabolic panel (CMP)Put glucose, electrolytes, kidney, liver and protein markers in context.
Quick guideBlood tests and biomarkersCreatinine and eGFRUnderstand kidney estimates alongside hydration, muscle and prior results.
Quick guideBlood tests and biomarkersALT and AST liver enzymesReview liver enzymes with symptoms, medicines, training and repeat testing.
In-depth guideBlood tests and biomarkersTSH thyroid testDeep guide to TSH ranges, high and low results, free T4 patterns, testing and practical next steps.21 min read
In-depth guideBlood tests and biomarkersHemoglobin A1c (HbA1c)Deep guide to A1C ranges, units, testing, false results and practical next steps.19 min read
Quick guideBlood tests and biomarkersCGM glucose spikesSeparate one glucose rise from a repeated pattern worth investigating.
Quick guideBlood tests and biomarkersFerritin and ironRead iron stores with blood count, symptoms and clinical context.
Quick guideBlood tests and biomarkersVitamin D blood testCheck the measured form, units, range and personal context.
In-depth guideBlood tests and biomarkersApolipoprotein B (ApoB)Deep guide to ApoB ranges, risk context, testing, causes and evidence-based next steps.17 min read
Quick guideBlood tests and biomarkersApoB versus LDL cholesterolCompare particle-related and cholesterol-related cardiovascular signals.
In-depth guideBlood tests and biomarkersLipoprotein(a)Deep guide to Lp(a) levels, units, inherited risk, testing and evidence-based next steps.18 min read
Quick guideWearable devices and notificationsApple Watch health dataUse Apple Health signals as trends, not standalone diagnoses.
Quick guideWearable devices and notificationsApple Watch Vitals outliersReview an outlier against your baseline, symptoms and recent changes.
Quick guideWearable devices and notificationsApple Watch high or low heart-rate notificationWhat the notification can mean and when to seek qualified care.
Quick guideWearable devices and notificationsApple Watch low cardio-fitness notificationPut estimated cardio fitness in training and health context.
Quick guideWearable devices and notificationsApple Watch training load and effortCompare recent training with your usual pattern and recovery.
Quick guideWearable devices and notificationsApple Watch hypertension notificationTreat a notification as a prompt for appropriate follow-up, not a diagnosis.
Quick guideWearable devices and notificationsApple Watch irregular-rhythm notificationUnderstand the boundary between screening signals and clinical assessment.
Quick guideWearable devices and notificationsApple Watch inconclusive ECGWhy a recording can be inconclusive and what context to check.
Quick guideWearable devices and notificationsApple Watch AFib History percentageRead the percentage as a trend within the feature's limitations.
Quick guideWearable devices and notificationsApple Watch sleep-apnea notificationUse the alert to prepare a better conversation with a qualified professional.
Quick guideWearable devices and notificationsApple Watch sleeping respiratory rateCompare repeated changes with baseline, sleep and symptom context.
Quick guideWearable devices and notificationsOura Readiness ScoreBreak a composite readiness score into the trends beneath it.
Quick guideWearable devices and notificationsWHOOP Recovery ScoreUse recovery as a planning signal alongside how you feel.
Quick guideWearable devices and notificationsGarmin Body BatteryRead energy estimates against sleep, stress and recent activity.
Quick guideWearable devices and notificationsGarmin HRV StatusUse personal HRV baselines instead of comparing one number with others.
Quick guideWearable devices and notificationsFitbit Daily ReadinessConnect readiness with sleep, activity and your recent baseline.
Quick guideWearable devices and notificationsPolar Nightly RechargeRead overnight recovery as a trend rather than a verdict.
Quick guideWearable devices and notificationsSamsung Health Energy ScorePut a composite energy score in sleep, activity and recovery context.
Product guideUsing LongevityMateAI blood test analysisUse blood work you already have to build a personalised longevity report, track biomarker trends and ask grounded follow-up questions in LongevityMate.
Product guideUsing LongevityMateBiomarker trackerKeep more than 500 supported biomarkers in one history, compare repeat values and use the wider pattern to plan better follow-up questions.
Product guideUsing LongevityMateBlood tests and wearablesCombine existing lab results with optional sleep, HRV, glucose, activity and recovery signals available through supported health platforms.Go from reading to context
Review a result beside the rest of your health data
Upload supported blood work, review extracted values and build a clearer history before deciding what to ask next.
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We separate established findings from promising research, uncertainty and unsupported claims. Every published guide links to its sources and explains its limits.