Biological age: what it is and how to slow it down
Supplements & longevity

Biological age: what it is and how to slow it down

Part of the guide: Complete blood count (CBC) →

In short

  • Biological age shows how old your body is — not just what your birth date says.
  • We estimate it from blood markers and fitness (it is an estimate of a trend, not a diagnosis).
  • It can be lower or higher than your calendar age — and it can be slowed down.
  • The strongest levers: metabolism, exercise, sleep, not smoking, weight.

Two people of the same calendar age can be very different in “age” inside. Biological age tries to measure that difference. The good news: you can influence it.

What biological age is

You cannot change your calendar age. Biological age is an estimate of how well your systems are working — heart, vessels, metabolism, inflammation — expressed in “years”. If the indicators look good, your biological age can be lower than your real age. If not, it can be higher. It is an estimate of risk and trend, not an exact number.

How we estimate it

Most often from a combination of blood markers (metabolism, inflammation, lipids, blood count). Where needed, we add fitness indicators such as VO₂max. An algorithm turns these indicators into an estimate. Because it is a model, it is most useful as a trend: is the number moving down as your habits change?

Which indicators matter most

AreaMarkers / indicators
Metabolismglucose, HbA1c
Heart & vesselsApoB, lipids
Inflammationhs-CRP
FitnessVO₂max, body composition

How to slow down biological age

1) Sort out your metabolism

Stable blood sugar and favourable lipids are among the strongest levers.

2) Move — aerobic and strength

Raising VO₂max and muscle mass directly lowers risk.

3) Sleep, no smoking, healthy weight

Good-quality sleep, quitting smoking and losing excess fat lower inflammation and “rejuvenate” the indicators.

The most important message: biological age is not destiny. A few months of steady habits can already move the indicators the right way. That is the best motivation to keep the changes going.

Honest about the method. Biological age estimates differ between models and are not a diagnosis. They are most useful for tracking progress in the same person over time, not for comparing people.

How Blood Lab 360 helps

From your markers we estimate your biological age and show which indicators push it up. We prepare a plan and then track your progress over time.

Frequently asked questions

What is biological age?

An estimate of how old your body is based on health indicators, independent of calendar age.

How is it calculated?

From a combination of blood markers and fitness, using an algorithm. It is an estimate of a trend, not a diagnosis.

Can I lower it?

Often yes — with a well-managed metabolism, exercise, sleep, not smoking and a healthy weight.

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Sources

  1. Aging (Albany NY): An epigenetic biomarker of aging for lifespan and healthspan (Levine et al.), the PhenoAge method (2018)
  2. WHO: WHO guidelines on physical activity and sedentary behaviour (2020)

Links checked on 14 Sep 2026. The marker ranges above carry their own source next to each row.

Related

This article is for information only and is not a substitute for medical advice. Talk to your doctor about your results.

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