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Dr. Shaima AlshareefLongevity & Lifestyle Medicine

Assessment

Estimate your biological age

A short questionnaire that turns your habits and history into an educational estimate of how your body may be aging relative to the calendar — and the three changes that would matter most.

How this estimate worksOpen

You answer 12 questions across risk exposure, movement, sleep, body composition, nutrition, stress and resilience, and medical history. Each answer carries a small, fixed year adjustment reflecting the general direction of established evidence for that factor — not a personalised risk calculation.

Those adjustments are added together, multiplied by a damping factor of 0.7, and scaled by how much of the questionnaire you completed. The result is then capped at 10 years in either direction and the final figure is kept within 18–110 years, so it can never return an impossible age.

The model is deterministic: the same answers always produce exactly the same number. Nothing is randomised, and nothing is sent anywhere — the calculation runs entirely in your browser.

What this is not

  • Not a laboratory or biomarker test, and not an epigenetic clock.
  • Not validated against any published biological-age algorithm.
  • Not a diagnosis, screening tool, or substitute for clinical assessment.
  • Not able to account for genetics, medications, or your full medical history.

The deliberate damping means the number is intentionally conservative. Its purpose is to show which modifiable factors carry the most weight for you — the ranked contributors and priorities are more useful than the figure itself.

The model is built so laboratory inputs can later be added alongside, or in place of, these lifestyle proxies without changing how results are presented.

Step one

Your chronological age

Risk exposure

Do you smoke or vape (including shisha)?

Do you drink alcohol?

Movement

How much moderate or vigorous aerobic activity do you get weekly?

Brisk walking, cycling, swimming — anything that raises your breathing rate.

How often do you do resistance or strength training?

Sleep

On a typical night, how much sleep do you get?

How refreshed do you usually feel on waking?

Body composition

Which best describes your waist measurement?

Measured at the level of the navel. A useful proxy for central adiposity.

Nutrition

How would you describe your usual eating pattern?

Stress & resilience

How often does stress feel unmanageable?

Do you have people you can rely on and see regularly?

Medical history

Have you been told you have any of the following?

High blood pressure, high cholesterol, prediabetes or diabetes, fatty liver.

How often do you have a preventive check-up or screening review?

Questions

About this estimate

Is this a real biological age test?
No. It is an educational estimate based on lifestyle and history. It is not a validated biological clock, not a laboratory test, and not a diagnosis. A true biological-age measurement requires laboratory analysis interpreted by a clinician.
How is the estimate calculated?
Each answer carries a small, transparent year adjustment based on the direction of established evidence for that factor. The total is then deliberately damped and capped at ten years in either direction, so the result reads as a direction of travel rather than a measurement.
What should I do with the result?
Use the improvement priorities as a starting point for a conversation with your own physician. The value is in identifying which levers are largest for you, not in the number itself.
Is my data stored?
Your answers are processed in your browser to produce the result. Nothing is submitted anywhere from this page.