09/09/2026
YOUR AGE IS MORE THAN A NUMBER
Two people can both be 50 years old—yet their bodies may be aging differently.
A new 8-year study of 335 women found that thousands of genes and blood metabolites changed with aging, but individuals did not always follow the same molecular path.
Researchers identified influences including:
Genetics
️ Immune system changes
Environmental exposures
Circadian rhythms
️ Seasonal changes
This is one reason scientists distinguish between:
CHRONOLOGICAL AGE
The number of years since you were born.
BIOLOGICAL AGE
A broader measure of how your cells, tissues, organs and physiological systems are aging.
But here's the important part: biological aging is not one simple number.
Different organs and systems can age at different rates, and biological-age tests are still an evolving area of research.
So rather than worrying about whether your “biological age” is older or younger than your birthday age, focus on what you can influence:
Eat a balanced diet
Stay physically active
Prioritize quality sleep
Avoid smoking
Limit excessive alcohol
Monitor blood pressure, blood glucose and cholesterol
Protect your mental and cognitive health
Take medicines correctly when prescribed
You cannot stop the calendar—but you can invest in healthier aging.
What would you rather know: your chronological age or your biological age?
Tell us in the comments.