Key takeaways
- DunedinPACE is designed to measure the pace of biological ageing, not just biological age in years.
- Around 1.0 corresponds to the average aging rate in the cohort, while lower or higher values should be interpreted with caution and in context.
- DunedinPACE is not a simple biological age calculator and cannot be directly translated into WHOOP Age, Oura Cardiovascular Age or a general age estimate.
- The test is most useful as a supplement to function, blood tests and a concrete intervention plan.
- For most, the practical gain is greatest when it is used for follow-up over time and not as the first or only measurement.
Medical disclaimer: Content is for informational purposes and does not replace medical advice.
What exactly is DunedinPACE?
DunedinPACE is a DNA methylation-based biomarker developed to estimate tempo in biological aging. The central question is not how old you biologically look today, but how quickly your physiology appears to be moving through the aging process. PMID 24138928 PMID 29676998
The algorithm was developed from the longitudinal Dunedin cohort, where the researchers followed the same cohort over two decades and modeled changes in multiple organ systems. Then this long-term aging rate was distilled into a single methylation signal from blood. PMID 24138928 PMID 29676998
DunedinPACE is not the same as biological age
This is where many get confused. Classic epigenetic clocks are often marketed as a biological age clock: you are, for example, three years younger or five years older than your date of birth suggests. DunedinPACE is another matter. PMID 29676998 PMID 35029144
Rather than giving you a simple age estimate, DunedinPACE tries to tell you something about speed. Therefore, the test should not be interpreted as an identity number either, but as a possible signal about the direction and speed of your aging profile. PMID 29676998 PMID 35029144
Can DunedinPACE be used as a biological age calculator?
Only in a very loose sense. If you are looking for a calculator that will give you a single number for biological age, DunedinPACE is not designed for that purpose. The output says something about pace, not about how many biological years you are younger or older than the birth certificate. PMID 35029144 PMID 38355974
This is also why the comparison with newer wearable features must be done carefully. WHOOP Age, Oura Cardiovascular Age and Apple Watch Vitals rely on different inputs and different output logic. They may be interesting as wellness or circulatory signals, but they are not just a consumer-friendly version of DunedinPACE. PMID 35029144 PMID 38355974
How should the number be interpreted?
In the research material, Pace of Aging is scaled around an average of 1, which corresponds to approximately an average pace of biological aging per year. chronological year. In that logic, a value below 1 points towards slower ageing, while a value above 1 points towards faster ageing. PMID 38355974 PMID 31706635
The important thing is that the number should not be read as a conclusion from a single measurement. The test makes much more sense if you use it in conjunction with other signals and look at the development over several months rather than reacting dramatically to a single response. PMID 38355974 PMID 31706635
Why DunedinPACE became interesting in research
The strength of DunedinPACE is that the model was built on a long observation window and multiple measurement times, not just a one-off image. The researchers followed 19 biomarkers across multiple organ systems over approximately 20 years and used that as the basis for the pace metric that the methylation algorithm should reflect. PMID 31706635
In the published validation, DunedinPACE showed high test-retest reliability and correlation with disease, disability and mortality. It was also described as a useful complement to existing methylation targets such as GrimAge rather than a total replacement. PMID 31706635
When does the test make sense in practice?
DunedinPACE makes the most sense for users who already have a fairly serious setup: baseline blood tests, realistic exercise and sleep efforts, and a plan for what to do after the response. Without that framework, the test easily becomes an expensive piece of fascination with little action value. PMID 31706635
It can be relevant if you want to compare a more advanced aging marker with classic signals such as VO2 max, strength, waist circumference, HbA1c, blood pressure and subjective recovery. It can also be interesting in a clinic or coaching course where re-measurement is actually planned. PMID 31706635
Why the test is often overinterpreted
The biggest mistake is to treat DunedinPACE as a direct judgment on your entire health. The test is a statistical biomarker, not a window directly into all organ systems in real time. Therefore, an isolated response cannot replace clinical assessment, symptoms or more classical measurements. PMID 31706635
The second biggest mistake is forgetting that different tests and providers may package methylation data differently. Even a good algorithm becomes easy to misunderstand if the user does not understand the difference between pace, biological age, reference population and the importance that repeated measurements have for the interpretation. PMID 31706635
A pragmatic way of using DunedinPACE
If you want to use the test sensibly, it should be included as one layer in a small measuring system. That system should still be dominated by markers that are easier to act on in practice and easier to remeasure without unnecessary mystery. PMID 31706635
In other words, DunedinPACE is best when it comes after the basics are in place: exercise, sleep, blood pressure, glucose control, body composition and realistic follow-up. Then it can be used as an extra layer, not as the whole story. PMID 31706635
What is biological age—and what is it not?
Biological age is estimated from biomarkers — typically DNA methylation (epigenetic clocks), blood values or physical measures. The most validated clocks include Horvath Clock (2013), PhenoAge (2018) and GrimAge (2019). DunedinPACE differs by measuring rate of aging rather than a static age estimate, making it more dynamic and actionable. A crucial insight from Nature Medicine (2024) is that biological aging tests are not yet clinically validated for individual risk stratification. PMID 31706635
So the most useful thing is not a single number, but the change over time — is your rate of aging accelerating or decelerating? And more importantly: what do you do with the answer? The strongest approach combines molecular tests with physical function measures such as VO2 max, grip strength and walking speed. PMID 31706635
How to measure biological age — the different methods
There are several approaches to estimating biological age. Epigenetic clocks analyze methylation patterns in DNA and are the most validated. Blood-based panels (like the PhenoAge calculator) use routine blood tests to estimate aging and are cheaper but less accurate. Physical function measures such as VO2 max and grip strength are not biological age in the molecular sense, but are strong predictors of healthy aging and mortality. PMID 31706635
Each method has strengths and weaknesses. Epigenetic tests are accurate but expensive and require specialized laboratory equipment. Blood-based calculators are cheaper but are affected by daily form, medication and acute illness. The best strategy is to combine methods — use an epigenetic test every 12-18 months. month to follow the rate of aging, and supplement with cheaper blood tests and function tests between the epigenetic measurements. PMID 31706635
What should you use your biological age for?
A biological age that is higher than your chronological age should be a motivating factor, not a judgment. Instead, ask: what factors are driving the difference and what can I change? Concrete actions include optimizing sleep (7-9 hours), reducing chronic stress through mindfulness or exercise, increasing physical activity (both strength and endurance), improving diet quality (Mediterranean diet, fiber, omega-3), and controlling known risk factors such as blood pressure, blood sugar and body weight. PMID 31706635
Repeat the test after 6-12 months of targeted effort. A 1-2 year improvement in biological age over one year is a realistic and meaningful goal. Remember that biological age is an estimate with some uncertainty — focus on the trend over multiple measurements, not the exact number from a single test. Biological age is a tool for insight and motivation, not a judgment on your lifestyle. PMID 31706635
Internal Further Reading
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FAQ
Is DunedinPACE the same as a biological age test?
Not quite. DunedinPACE is primarily about the rate of biological ageing, while many other epigenetic tests are marketed as an estimate of biological age in years.
What does a score below 1.0 mean?
It basically points towards a slower pace of aging than the average in the reference cohort. It still needs to be interpreted together with other markers and preferably over time.
Is DunedinPACE better than Horvath or GrimAge?
It's a different tool with a different question. DunedinPACE is made to measure the pace of aging, while other clocks are used more as age estimates or risk models.
Is DunedinPACE the same as WHOOP Age or Oura Cardiovascular Age?
No. DunedinPACE is a methylation-based pace measurement, while WHOOP Age and Oura Cardiovascular Age are device-specific wellness or circulatory estimates built on entirely different data sources.
Should I take DunedinPACE before working on blood pressure, glucose and fitness?
Usually no. For most people, it makes more sense to start with more actionable signals and only then consider an advanced methylation test.
How often does it make sense to repeat the test?
Only if you have a concrete process and a realistic time interval. It is typically more meaningful to look at the monthly trend than to chase rapid swings.
Can DunedinPACE be used to see if a longevity program is working?
Yes, but best as a supplement. You achieve the greatest practical value when the test is held up against classic markers such as VO2 max, blood pressure, glucose, sleep and body composition.
Sources and References
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Editorial History
20. April 2026
First publication
Initial version was published as part of the healthy aging with introduction, takeaways, FAQ, and reference block.
20. April 2026
Medical review
Phrasing, caveats, and internal links were reviewed for clarity, consistency, and YMYL alignment.
20. April 2026
Latest update
DunedinPACE test received updated metadata, reference outputs, and improved decision-support structure.
Medical Review
Medical Review and Update Process
This article has been medically reviewed by Vadim Doroshenko with a focus on clinical accuracy, sources, disclaimers, and whether the conclusions still align with current scientific evidence.
Editorial Profile
Borys Viktorovytj Riabtsev
Borys Viktorovytj Riabtsev publishes Longevity Lab as a research-backed information project on precision medicine, metabolic health, and healthy aging, utilizing rigorous sources, independent medical review, and objective YMYL communication.