Your biological age vs. your actual age
Longevity & Preventive Health Pillar
Imagine two 50-year-olds. One has the body, energy, and resilience of a 40-year-old. The other has those of a 65-year-old. Their birthdates are the same—but their biological age, which determines how long and in what condition they will live, is completely different.
That’s the key difference between chronological age—the number of candles on the cake—and biological age—the actual degree of wear and tear your body has accumulated. And science is now clear: when it comes to predicting disease and longevity, it’s the latter that matters.
Why your date of birth doesn't tell us much
Aging is the gradual accumulation of cellular damage. However, the rate at which this damage accumulates varies greatly from person to person, depending on stress, physical activity, sleep, and nutrition. As a result, two individuals of the same chronological age may have radically different risks of disease. Chronological age alone is therefore a poor predictor of morbidity and mortality.
The best indicator of biological age is measured through physical exertion
Of all the biomarkers studied, one stands out: VO₂max, which is the maximum amount of oxygen your body can take in and use. It is the most powerful and independent predictor of life expectancy, both in healthy individuals and in those with cardiorespiratory disease.
VO₂max naturally declines by about 7% (women) to 10% (men) per decade starting at age 25. But this decline is not inevitable: regular aerobic training can slow down or even reverse this trend and reduce biological age by ten years or more.
To understand why oxygen is key to longevity, check out our feature article , "Oxygen: The Ultimate Measure of Your Longevity."
The numbers behind the link between VO₂max and longevity
Each 3.5 ml/min/kg increase in VO₂max corresponds to an approximately 12% increase in life expectancy.
Over a 20-year follow-up period, the risk of death was 61% lower among physically fit individuals than among those who were unfit.
A high VO₂max even mitigates the impact of other risk factors (high blood pressure, high cholesterol, diabetes)—the so-called "fat but fit" profile.
Most importantly, these benefits can be achieved at any age and regardless of one’s starting point. An untrained person who gets in shape continues to enjoy a significant reduction in risk.
Measure to target more effectively
This is where kinesiology comes into play. Knowing your VO₂max means knowing your true biological age—and therefore knowing exactly what to focus on. Through metabolic analysis, we directly measure your starting point, and then your kinesiologist develops a plan to lower that age, year after year.
References
American Heart Association — Ross R. et al. “Importance of Assessing Cardiorespiratory Fitness in Clinical Practice: A Case for Fitness as a Clinical Vital Sign.” Circulation. 2016;134(24):e653-e699.
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This article is provided for educational purposes only and does not constitute medical advice. If you have any health conditions, consult a doctor before starting to exercise.
