Health & Life · Interactive tool
Langlebigkeitsindex
Explore how your daily habits relate to healthy ageing. Answer 10 questions to compare your chronological age with an illustrative biological age estimate and see your five lifestyle scores.
How this index worksEducational tool. Individual answers are processed in your browser and are not included in analytics events.
Five areas shape the signature
First, your age
What is your chronological age?
Choose your age from 18 to 90. It is the starting point for the estimate. Your answers determine the adjustment, while the lifestyle score is independent of age.
Use the slider or arrow keys to choose your age.
Question 1 of 10
How many moderate-equivalent minutes of physical activity do you usually do in a week?
Your Longevity Index result
- Chronological age
- 50
- Estimated biological age
- —
Illustrative lifestyle estimate
Calculated from your answers, without biomarkers. This is not a clinical measurement of biological age.
Your Longevity Signature
Your five domains
The age estimate translates your lifestyle score into an illustrative age difference. It has not been validated against biological age tests. It does not show years gained or lost, predict lifespan or indicate a rate of ageing. Different profiles can share the same rounded result.
Health & Life · Health Products
Continue exploring healthy ageing
Explore Health Products selected for formulation, quality and relevance to the Health & Life approach.
Some links in Health Products may be affiliate links.What is the Longevity Index?
The Health & Life Longevity Index is a free lifestyle questionnaire for adults aged 18–90. It covers movement, nutrition, sleep, tobacco and alcohol exposure, stress recovery and social connection. Your result includes a score out of 100, a five-area profile and an illustrative age comparison.
How this index works
How this index works
Each answer receives 0–100 points. Each of the five areas has two questions, and contributes equally (20%) to the overall score. A higher score reflects more favourable answers in this questionnaire. The age estimate uses the unrounded score, with 65 as its neutral reference.
How the age estimate is calculated
Above 65, the adjustment is −7 × (score − 65) ÷ 35 years. Below 65, it is +12 × (65 − score) ÷ 65 years. Add this adjustment to chronological age and round once to a whole year. The illustrative output is limited to a minimum of 18. The 65-point reference and −7/+12 limits are design choices, not effects established by clinical research.
Evidence basis
The sources below inform the lifestyle topics. They do not validate this questionnaire, its point weights or its conversion from a score to years. Scientific biological age methods use biomarkers, such as DNA methylation, which this tool does not collect.
The 10 questions
- How many moderate-equivalent minutes of physical activity do you usually do in a week?
- On how many days per week do you usually do muscle-strengthening exercise?
- How often are vegetables, fruit, legumes, whole grains, nuts or other minimally processed foods central to your meals?
- How often do ultra-processed foods or sugary drinks make up a substantial part of what you eat or drink?
- On most nights, how long do you usually sleep?
- How would you describe the regularity and restorative quality of your sleep?
- Which best describes your current tobacco or inhaled nicotine exposure?
- Which best describes your usual alcohol pattern?
- How well do you usually recover from day-to-day stress?
- How would you describe the quality of your social connection?
Educational use only. This questionnaire does not measure biological age, diagnose disease or replace individual medical or psychological assessment.
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