Our Science

Optimal versus Normal — in depth

Standard reference ranges were built around population averages — including unhealthy individuals. EVA reinterprets every biomarker against longevity-optimised ranges, stratified by sex and age group.

Optimal vs. Normal

What 'normal' is hiding

Each example below shows the same lab result evaluated twice: once by standard ranges and once by EVA's optimal ranges. The difference matters.

Vitamin D (25-OH)

28ng/mL
Standard Lab RangeNormal
20100
EVA Optimal RangeBelow Optimal
5080

hs-CRP

2.1mg/L
Standard Lab RangeNormal
03
EVA Optimal RangeAction Required
01

Ferritin

38ng/mL
Standard Lab RangeNormal
12300
EVA Optimal RangeBelow Optimal
50150

HbA1c

5.6%
Standard Lab RangeNormal
45.7
EVA Optimal RangeAbove Optimal
4.55.2

TSH

3.8mIU/L
Standard Lab RangeNormal
0.44.5
EVA Optimal RangeAbove Optimal
12.5

ApoB

95mg/dL
Standard Lab RangeNormal
40130
EVA Optimal RangeAbove Optimal
4080
Biomarker Explorer

165+ biomarkers across 15 categories

165+ biomarkers available across all panels — 15 in your base panel. Explore each category below.

Calculated Metrics

7 metrics derived automatically

EVA automatically computes derived metrics from raw biomarker values, revealing patterns that individual numbers don't show.

HOMA-IR

Insulin resistance risk

FormulaFasting Insulin × Fasting Glucose / 405
Optimal Range0.5 – 1.5

TG/HDL Ratio

Metabolic health proxy

FormulaTriglycerides / HDL
Optimal Range≤ 1.5

AST/ALT (De Ritis)

Liver function assessment

FormulaAST / ALT
Optimal Range0.8 – 1.2

Omega-3 Index

Cardiovascular protection

FormulaEPA + DHA / Total fatty acids
Optimal Range≥ 8%

NLR

Systemic inflammation

FormulaNeutrophils / Lymphocytes
Optimal Range1.0 – 2.5

Free Androgen Index

Hormonal balance

FormulaTotal Testosterone / SHBG × 100
Optimal RangeSex-specific

Non-HDL Cholesterol

Atherogenic particle estimate

FormulaTotal Cholesterol − HDL
Optimal Range< 130 mg/dL
Age & Sex Stratification

24 age groups, sex-specific ranges

EVA's optimal ranges aren't one-size-fits-all. What's optimal for a 25-year-old male is different from what's optimal for a 55-year-old female. Our dataset stratifies every biomarker by sex and age group to give you truly personalised targets.

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24 age groups spanning 18 to 100+

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Separate ranges for males and females

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Continuously updated with emerging research

29
Bio Age
5yr younger
Biological Age

How fast are you actually aging?

EVA's Biological Age combines multiple biomarkers into a single metric — your real biological age vs. your chronological age. Track it quarter over quarter as you optimise your health.

How is it calculated?

Our algorithm analyses key aging biomarkers — inflammatory markers, metabolic health, liver function, blood counts, and more — comparing them against age-stratified distributions to estimate your biological aging rate.