Estimate your biological age based on your lifestyle habits — and discover which changes have the biggest impact on how long you stay healthy and vibrant.
Answer honestly — your biological age estimate depends on it. This takes about 2 minutes.
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Biological age estimate is based on research from the Harvard T.H. Chan School of Public Health's lifestyle-longevity studies. This is an educational estimate, not a clinical measurement.
Biological age is a measure of how old your body is functionally — based on the state of your cells, organs, and systems — as distinct from your chronological age (years since birth). Research from the Harvard T.H. Chan School of Public Health has shown that adopting five key healthy lifestyle habits by age 50 can add more than a decade to healthy life expectancy for women.
A landmark 2018 Harvard study of 123,000 adults identified five habits that collectively reduced premature death risk by 82%: never smoking, healthy BMI (18.5–24.9), regular physical activity (30+ minutes/day), moderate alcohol intake, and a high-quality diet. Women who maintained all five habits lived 14 years longer in good health than those with none.
Women on average live longer than men, but spend more years in poor health. Perimenopause and menopause represent a critical window — the hormonal changes that occur accelerate cardiovascular disease risk, bone loss, and cognitive decline if not proactively managed. Strength training, adequate protein, and estrogen-supportive nutrition during this window can significantly extend healthy years.