Lifespan
The total predicted duration of your life based on population baselines and lifestyle factors.
88.5 Years
Longevity Clock
Our data-driven questionnaire, backed by WHO population health statistics, estimates your lifespan, healthspan, and peakspan trajectories.
Healthspan
Years lived in optimal health, free from chronic disease and functional decline.
76.2 Years
Peakspan
Your window of maximum cognitive and physical performance potential.
42.0 Years
Investment optimization
Your Health ROI
See how strategic biological interventions can transform your future. Small changes in habits may yield meaningful returns in your high-performance years.
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Introduce strength training +1.8 Yrs
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Quit smoking +2.4 Yrs
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Reach 7–8.5 hours of sleep +1.2 Yrs
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Increase weekly activity to 150+ minutes +2.1 Yrs
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Eat vegetables and fruit more often +1.5 Yrs
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Reduce weekly alcohol intake +1.0 Yrs
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Improve VO₂max +1.6 Yrs
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Improve cholesterol status +1.4 Yrs
Before vs after optimization
Baseline
Lifespan
+18.3 years with optimization
74.5
Baseline
92.8
Optimized
Healthspan
+21.4 years with optimization
58.2
Baseline
79.6
Optimized
Peakspan
+21.5 years with optimization
26.5
Baseline
48.0
Optimized
Evidence-informed platform
Backed by Global Population Health Data
Longevity Clock is informed by WHO life expectancy and healthy life expectancy estimates, global health indicators, nationally representative health examinations, and evidence-based physical activity guidelines.
183
Country Baselines
WHO life expectancy and healthy life expectancy data used to establish country- and sex-specific population baselines.
1,000+
Global Health Indicators
WHO indicators spanning mortality, population health, disease burden, risk factors and health systems.
240,000+
People Examined
Participants in NHANES health interviews, physical examinations and laboratory assessments since 1960.
60+ years
Population Research
More than six decades of nationally representative health examination data.
150–300 min/week — WHO-recommended range of moderate-intensity aerobic activity used in lifestyle scoring.
The Science Behind Longevity Clock
Longevity Clock applies published population health patterns to your questionnaire answers. Lifespan and healthspan baselines are informed by WHO Global Health Estimates and Healthy Life Expectancy data. Peakspan performance references draw on nationally representative NHANES examinations, while activity thresholds follow WHO guidelines. All calculations run locally in your browser.
- WHO life expectancy and HALE baselines across 183 countries, areas and territories
- WHO global indicators covering mortality, health status and major risk factors
- NHANES performance references informed by 240,000+ examined participants
- WHO-recommended physical activity thresholds
- Three complementary trajectories: lifespan, healthspan and peakspan
- Runs entirely in your browser — we do not store your personal data
Start Your Longevity Journey
Stop guessing. Start measuring. Get your personalized biological health report in less than 5 minutes.
Longevity Protocols App
Turn theory into practice
Longevity Clock shows where you stand. The Longevity Protocols app helps you act on it — with a personalized longevity plan for training, habits, supplements, diagnostics, and daily consistency.
- Build and run your personalized longevity protocol
- Track Physical, Cognitive, and Emotional health assets in one system
- Turn insights from the Clock into habits you can execute every day
