Food
Dietary quality, meal patterns, and home-prepared meals
Methodology
LIFE Longevity Assessment Methodology
How the assessment works and the research areas that inform it.
Version 1.0 • Released 2026 • Educational tool, not a medical diagnosis
Last updated: March 2026
The LIFE Longevity Assessment is a survey-based educational tool designed to help users reflect on lifestyle patterns associated with healthy aging. It estimates a Survey-Based Biological Age, an Estimated Lifespan, and a Longevity Potential using self-reported behaviors, health-related habits, and selected risk indicators. It is intended for education and self-reflection, not diagnosis.
On this page
Purpose of the Assessment
The LIFE Longevity Assessment was created to translate longevity and public health research into an approachable nonprofit tool. It helps participants understand how daily behaviors, social patterns, and stress responses align with healthier or riskier long-term trajectories. Rather than claiming to predict exact lifespan, it surfaces themes associated with more favorable or less favorable healthy-aging profiles.
The emphasis on modifiable inputs reflects the evidence that many meaningful drivers of healthy aging live in day-to-day routines, shared meals, physical activity, sleep, relationships, and substance use—not solely in genetics or advanced medical testing.
The Six LIFE Pillars
The assessment is organized around six core domains associated with healthy aging and long-term wellbeing.
Movement
Physical activity, strength, daily movement, and fitness
Sleep
Sleep duration, sleep quality, and consistency
Connection
Social support, time with others, and shared meals
Purpose
Meaning, direction, and contribution
Stress Regulation
Stress burden, emotional wellbeing, and resilience
What the Assessment Measures
The assessment includes a combination of lifestyle behaviors, psychosocial factors, selected health-risk indicators, and optional cardiometabolic markers when the user knows them.
- Nutrition patterns
- Physical activity and fitness
- Sleep habits
- Social connection
- Purpose and emotional wellbeing
- Alcohol and nicotine use
- Chronic disease status
- Optional blood pressure, LDL, and fasting glucose inputs
How the Scoring Works
Each survey response is mapped along a favorable-to-unfavorable range. Inputs that research consistently links to larger shifts in healthy aging—such as nicotine use, chronic disease, physical activity volume, or meaningful sleep deficits—carry more weight than fine-tuning behaviors.
Pillar scores are calculated separately and combined into an overall longevity profile. Higher pillar scores indicate patterns more closely aligned with healthy-aging cohorts, while lower scores highlight opportunities for change.
- Survey-Based Biological Age is a modeled educational estimate of how the reported profile compares to generalized healthy-aging patterns.
- Estimated Lifespan is a modeled educational estimate that reflects the current response profile and its mix of favorable and unfavorable inputs.
- Longevity Potential shows a modeled estimate under realistic improvements to modifiable behaviors, illustrating the possible upside of sustained habit changes.
All three outputs are survey-based educational estimates, not clinical diagnoses or guarantees.
Research Foundations
The assessment is informed by public health guidance and research areas consistently associated with healthy aging and mortality risk.
Physical Activity
The assessment’s movement framework is informed by public health guidance emphasizing regular aerobic activity and muscle-strengthening activity as core components of long-term health.
Sleep
Sleep duration and sleep quality are included because insufficient or disrupted sleep is associated with adverse cardiometabolic and mental health outcomes.
Connection and Wellbeing
The assessment includes social connection, shared meals, and psychosocial wellbeing because long-term research has shown that relationships and emotional health are deeply connected to healthy aging.
Cardiometabolic Health
Chronic disease risk, optional blood pressure, cholesterol, and fasting glucose markers are included because cardiovascular and metabolic health remain central to long-term mortality risk.
Examples of Research and Public Health Sources
- CDC guidance on physical activity for adults
- CDC guidance on adult sleep and sleep duration
- World Health Organization materials on cardiovascular disease risk
- Harvard Study of Adult Development
- Peer-reviewed research in epidemiology, preventive medicine, and behavioral health
Why the Assessment Focuses on Modifiable Factors
The assessment intentionally emphasizes factors people can influence over time, such as physical activity, sleep routines, nutrition quality, stress habits, social connection, and substance use. While not every aspect of longevity is controllable, many important contributors to long-term health are shaped by daily patterns, environments, and supportive relationships.
Important Limitations
This is a survey-based educational tool that relies on self-reported answers.
It does not replace medical evaluation, diagnosis, or personalized care from qualified professionals.
The assessment cannot incorporate every genetic, environmental, or clinical variable.
Results should be viewed as reflection prompts, not as precise predictions of individual lifespan.
Disclaimer
This assessment provides an educational estimate based on lifestyle and health factors associated with healthy aging. It is not a medical diagnosis and should not replace professional medical advice.
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Explore your longevity profile
Use the LIFE Longevity Assessment to reflect on your current habits and potential opportunities.