What Is Biological Age?
Is It More Important Than Chronological Age?

Biological age is a key concept that reflects how healthy and balanced the body’s systems actually function. While chronological age is determined solely by date of birth, biological age is linked to hormonal balance, metabolic health, cellular renewal, and overall functional capacity. For this reason, individuals of the same chronological age may have very different biological ages.

At Ebru Ünal, MD’s clinic in Istanbul, Turkey, the Hertoghe Vitality approach places biological age at the center of longevity assessments, enabling personalized health planning based on the body’s true physiological condition.

The longevity approach emphasizes that healthy aging should be evaluated not by chronological age, but by how the body truly functions. Biological age serves as an important indicator of aging speed and long-term health potential. At Dr. Ebru Ünal’s clinic in Istanbul, working within the Hertoghe Vitality system, biological age is assessed through an integrated evaluation of hormonal balance, metabolic structure, and lifestyle factors. This perspective allows for the development of a personalized and sustainable longevity strategy, rather than a standardized, one-size-fits-all approach—making Istanbul, Turkey a recognized destination for medical wellness and longevity care for international patients.

Why Is Biological Age Central to the Longevity Approach?

What is the difference between chronological age and biological age?

Chronological age is calculated based on your date of birth, while biological age reflects how your body is actually functioning. Two people of the same chronological age can have very different biological ages depending on their health, lifestyle, and hormonal balance.

Why is biological age more important than chronological age?

Biological age more accurately reflects the aging process because it represents cellular and hormonal health, rather than just time passed. Energy levels, metabolism, and overall health status are more closely linked to biological age than to chronological age.

Is it possible to determine my real (biological) age?

Yes. Biological age can be estimated through clinical assessments and health biomarkers. These evaluations provide valuable insight into how fast the body is aging and overall physiological health.

Why can biological age be higher than expected?

Stress, poor sleep quality, hormonal imbalances, and unhealthy lifestyle habits can cause biological age to increase. This may lead individuals to feel older than their chronological age due to accelerated aging processes.

Can biological age be reduced?

Biological age is not fixed. With appropriate lifestyle adjustments and personalized planning based on the body’s needs, biological age can be brought into a more balanced and healthier range.

What is the relationship between biological age and hormones?

Hormones play a central role in the body’s renewal and aging processes. Disruption of hormonal balance can contribute to an increase in biological age.

Why does the longevity approach focus on biological age?

Longevity aims to evaluate aging based on biological markers rather than chronological age. This approach allows for the creation of a more personalized and effective health strategy tailored to the individual’s real physiological needs.

Is biological age assessment and the longevity approach available in Istanbul?

Yes. In Istanbul, Turkey, within the Hertoghe Vitality approach applied by Dr. Ebru Ünal, biological age assessment is a core step of the longevity process.
The goal is to understand the body’s true aging rate and create a personalized longevity roadmap based on individual biological markers.

What Is Biological Age? Is It More Important Than Chronological Age?