Healthy Life Expectancy Estimator (Lifestyle)

What is Healthy Life Expectancy Estimator (Lifestyle)?

The Healthy Life Expectancy Estimator projects your estimated chronological lifespan and healthy longevity years (HALE) using actuarial life tables modified by evidence-based lifestyle variables. It quantifies the life-extension impact of aerobic exercise, Mediterranean/plant-rich nutrition, non-smoking, optimal sleep, and stress resilience.

Designed for accuracy, speed, and privacy, this tool runs entirely on your local device with zero network latency.

How to Use the Healthy Life Expectancy Estimator (Lifestyle)

1. 1
   Select your biological gender and enter your current chronological age.
2. 2
   Select your regular physical activity level (Sedentary, Moderate, or Highly Active).
3. 3
   Select your dietary habits, sleep duration, smoking history, and stress levels.
4. 4
   Review your projected life expectancy in years, your healthy longevity window, and potential life-years gained from positive lifestyle adjustments.

Formula & Calculation Logic

Modifies standard Social Security Actuarial Period Life Tables with peer-reviewed epidemiological relative risk modifiers from Harvard Public Health longevity studies for exercise, non-smoking, nutrition, and sleep.