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The key to your health

How to read your labs and manage your longevity

Every year we go in for a routine check-up and walk away with sheets of numbers that can look like a puzzle. Let's unpack what they mean, how to read your biological age and risk indices from them — and what to do next.

5steps to decode 5kinds of age 8+biomarkers ~8 minread
Decoding blood test results
10–50
key lab markers in a basic check-up
5
kinds of biological age that reveal how your body is really doing
5–10yrs
horizon for forecasting your personal risks from your profile
#1
step toward longevity — learning to read your own labs
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Your labs are a map, not a verdict. The results of your lab tests are valuable information that helps you understand your body and act in time to protect your health. The key is learning how to read them.

5 steps to managing your health

Once your results are in hand, don't file them away and forget them. Here's a clear order for making sense of the numbers yourself — from your own profile to the conclusions.

01
Start from your own profile

Which tests matter most for you depends on your age, sex, and family medical history — that's where to begin. Once your results are in hand, turn them into your biological age with PhenoAge.

02
Get the core tests done

Anywhere from 10 to 50 key lab markers — a screening, standard, or extended panel.

03
Check against the reference ranges

Every result on the report sheet lists a reference range beside it — compare your numbers with the limits of normal.

04
Assess the indices and your biological age

From a set of markers you can calculate risk indices, biological age, metabolic age, and more than eight other key measures of health.

05
Draw conclusions and act

What to adjust in your diet and lifestyle, which further tests to run, and when to repeat your bloodwork.

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The art of small steps. Even the most ambitious goal begins with a single small step. Don't try to leap the whole chasm at once — it's exhausting and usually ends in disappointment.

Health profiles

It helps to group markers by area of health — that way you read your labs as a whole, rather than one number at a time.

cardiology
Cardiovascular health
  • CVD risk — the lipid panel
  • D-dimer — clotting
  • NT-proBNP
  • hs Troponin
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Metabolic health
  • BMI — body mass index
  • Insulin resistance
  • Glycated hemoglobin (HbA1c)
  • VAI and LAP indices
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Liver health
  • NAFLD — fatty liver disease
  • Steatosis
  • FLI and HSI indices
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Kidney health
  • eGFR — filtration rate
  • Urea / creatinine
bloodtype
Anemias
  • IDA — iron-deficiency anemia
  • Ferritin
  • Vitamin B12 + folate
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Inflammation & immunity
  • C-reactive protein
  • hs C-reactive protein
  • Rheumatoid arthritis
  • Celiac disease

Kinds of biological age

Your chronological age is just the number on your ID. What truly reveals the state of your health are your biological ages.

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Phenotypic (PhenoAge)

An integrated composite of 9 blood markers — the most measurable indicator of your body's true age.

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Metabolic

The age of your metabolism, from body composition and basal metabolic rate.

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Fitness

Cardiorespiratory fitness measured by VO₂ max.

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Heart age

Your 10-year risk score for developing cardiovascular disease.

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Genetic

Telomere length — a marker of cellular aging.

The lab alphabet

The key abbreviations you'll see on your results — and what each one stands for.

DNA Deoxyribonucleic acid
PCR Polymerase chain reaction
HbA1c Glycated hemoglobin
Vit. D Vitamin D 25(OH)D
Ferr Ferritin
CRP C-reactive protein
hs-CRP High-sensitivity CRP
NT-proBNP Heart-failure marker
hs-TnI hs Troponin
HOMA-IR Insulin resistance
NAFLD Fatty liver disease
eGFR Glomerular filtration rate
AA Amino acids

What your labs reveal together

A set of markers builds a complete picture — not isolated numbers, but the connections between them.

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Early diagnosis

Hidden deficiencies and dysfunction — caught before any symptoms appear.

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Personal risk assessment

Forecasting 5–10 years ahead from your profile of markers.

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Detection before dysfunction

Pre-disease states, while the process can still be reversed.

genetics
Risk prediction

Assessing your predisposition to disease and complications from your profile.

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Longevity and cellular aging

Your pace of aging from telomeres and epigenetic and functional markers.

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Sex and physiology matter

Men and women age differently — worth keeping in mind when reading your labs.

calculate Tool · biological age PhenoAge calculator Enter 9 markers from your complete blood count and metabolic panel to get your biological age, your 10-year risk, and a breakdown of how each marker contributes. Open the calculator

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