Rather, it is biological age that determines what you can and cannot do.

And, I'm happy to report, it is biological aging that we have the potential to slow.

Dakota Fanning has always seemed years ahead of her biological age.

He has retained a biological age of roughly thirty standard years for well over a century.

The findings, being reported today, are the first to link psychological stress so directly to biological age.

Probably he should rectify that along with the slippage in his biological age.

It is most commonly due to biological aging but there are a wide variety of other causes.

Thus, we speak of the "twin paradox", involving biological aging.

Biological aging refers to the physical changes that reduce the efficiency of organ systems.

His biological age, using tests like high-frequency hearing, memory and lung capacity, is about 40.

"The fact it's so similar around the world suggests it's due to biological aging," she said.

"Let's assume that your chronological and biological ages then differ by exactly two days.

She is the only on-screen character to demonstrate the change of biological age with materialization.

These deposits can also be a byproduct of senescence or biological aging.

"If I am right, we would cease to experience biological aging," Walker said.

Scientists do maintain, however, that chronological age has little bearing on biological age.

Your biological age has been changed, Diana.

In a medical lab, scientists are trying to discover how to differentiate between a child's biological age and his calendar age.

Bey could rule out the idea of suicide-it always resulted in death without any physical change except biological aging.

While chronologically 112 years old, Aang still retains his biological age of 12.

But with biological age, lots of things can affect that - smoking, not getting enough sleep, a poor diet, getting too much sun exposure.

Functionals do not age or get sick; they look younger than their biological age and are able to regenerate.

This distinction is not based on biological age but rather on the degree of self-sufficiency of an elderly person.

According to many accounts, she appears many years younger than her biological age and has been described as vibrant and glowing.

He was quite tall with his biological age locked in around his late twenties, dark skin offset by sandy-blond hair.