Built on science.
Reviewed by clinicians.

Biological age is an estimate produced by a method, not a direct measurement of how many years you have left. Different methods use different inputs and can produce different answers for the same person. The method matters as much as the number. Its value is as a summary of how your body is ageing across several systems at once, and as a way to see whether that trajectory is changing.

How is biological age estimated?

EVA BioAge is calculated from 13 blood markers using KDM-13, EVA’s adaptation of the Klemera-Doubal method. Read it alongside your individual results and clinical context. The wider KDM framework has been used in ageing research, including CALERIE; that does not validate EVA’s particular implementation.

Blood-based and DNA-methylation clocks use different measurements. Changes in EVA BioAge should be considered alongside changes in the underlying markers. A lower score alone does not prove slower ageing or longer lifespan. EVA’s inherited-DNA test is separate from DNA-methylation ageing tests.

Can a quiz tell me my biological age?

Some online quizzes give you a biological age based on your answers about lifestyle. That number is only as good as your answers and the quiz's own scoring. It cannot see your cholesterol, blood sugar or inflammation, because nothing was measured. EVA's biological age comes from your actual blood results.

What does a lower score mean?

It means the method produced a lower estimate from the data supplied. It does not, by itself, prove that a person has gained years of life, reversed a disease or benefited from one particular intervention. What matters is which underlying markers moved, because those are the levers. Results are indicative. Individual outcomes vary.

Before interpreting a change, ask whether the same method and comparable inputs were used. Review the underlying markers and the wider clinical picture, not only the headline score.

How to make an age estimate useful

• Record the method and assessment date.
• Understand the inputs and any missing information.
• Ask what the estimate adds to your ordinary clinical discussion.
• Keep individual measurements available for review.
• Avoid making treatment decisions from the score alone.

Questions to ask EVA

Ask which method appears in your assessment, how it is calculated and what its limitations mean for you. If you are comparing two assessments, ask whether the comparison uses the same method.

Explore how to interpret a progress example and the review process around your results. Contact EVA with a question about the science.

What is biological age?

It is an estimate derived from a particular set of biological measurements and a calculation. Different methods use different inputs and can give different results. Ask what was measured, which method was used and what the number adds to the wider health discussion.

How do I reverse my biological age?

A lower estimated score is not proof that ageing has been reversed or that life has been extended. Focus on the underlying measurements and the health actions agreed with a clinician. Compare results only with an understanding of the method and conditions; do not treat a supplement or one changed number as proof of rejuvenation.

How can I feel younger?

Start by describing the change you want: more energy for ordinary activities, better sleep, greater strength or easier movement. Those are more useful discussion points than an age label alone. If a change in how you feel is persistent or concerning, seek an appropriate health review. An age score cannot explain every symptom.

Read what the Dubai Longevity Authority means for longevity in Dubai.