Vitality Age Calculator
Vitality Age is a comprehensive measure of your biological age based on key physiological markers. Unlike chronological age, which simply counts the years you've been alive, Vitality Age reflects how your body is actually functioning and can provide insights into your overall health and longevity potential.
Scientific Basis of Biological Age
Biological age is a more accurate predictor of mortality and morbidity than chronological age. Research has shown that individuals with the same chronological age can have biological ages that differ by up to 20 years, explaining the vast differences in health outcomes among age-matched individuals.
Levine ME, et al. (2018). An epigenetic biomarker of aging for lifespan and healthspan. Aging, 10(4), 573-591.
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VO₂max and Longevity
Cardiorespiratory fitness, measured by VO₂max, is one of the strongest predictors of longevity. A meta-analysis of 33 studies found that each 1-MET increase in cardiorespiratory fitness (approximately 3.5 ml/kg/min in VO₂max) was associated with a 13% reduction in all-cause mortality and a 15% reduction in cardiovascular events.
Kodama S, et al. (2009). Cardiorespiratory fitness as a quantitative predictor of all-cause mortality and cardiovascular events in healthy men and women: a meta-analysis. JAMA, 301(19), 2024-2035.
Heart Rate Variability and Biological Age
Higher heart rate variability (HRV) is associated with better autonomic nervous system function and lower biological age. Research has shown that HRV decreases with age, and individuals with higher HRV for their age tend to have better health outcomes and lower mortality risk.
Umetani K, et al. (1998). Twenty-four hour time domain heart rate variability and heart rate: relations to age and gender over nine decades. Journal of the American College of Cardiology, 31(3), 593-601.
Muscle Mass and Aging
Maintaining muscle mass is crucial for healthy aging. After age 30, humans lose 3-8% of muscle mass per decade, with the rate accelerating after age 60. Higher muscle mass is associated with better insulin sensitivity, bone density, and metabolic health, all of which contribute to a lower biological age.
Volpi E, et al. (2004). Muscle tissue changes with aging. Current Opinion in Clinical Nutrition and Metabolic Care, 7(4), 405-410.