Written by Monica Mollica
Everybody wants to stay young and vital throughout life. But aging is topic surrounded by many questions and myths; here we’ll get to the bottom of it.
Different types of Aging – Chronological Aging and Physiological Aging
Before we get started, I want to make a distinction of two types of aging; chronological and physiological (or biological).
Chronological age is based on time and is the same for everyone who is born on the same date. It refers to age in number of years.
Physiological age, also called biological age, is the result of many factors, many of which are under your control, and varies from person to person (even if they were born on the same date). It refers to age in terms of physical capacity.
Chronological aging refers to how long you have been alive, and is determined by a mathematical formula that is the same for everybody: current date minus date of birth. It is a function of time and cannot be slowed, stopped or accelerated (a side note: according to Einstein’s Theory of Relativity, chronological can be modified, since as one approaches the speed of light, time slows down, and thus so does chronological age. But this isn’t relevant for us earthbound folks).
Physiological aging, on the other hand, describes the state of your body. What’s interesting with physiological aging is that many of the factors that impact it are under your full control (e.g. exercise, nutrition, sleep etc). While chronological and physiological aging are related, the years of your life doesn’t necessarily have much to do with the years of your body. Many people don’t like to tell their (chronological) age; however, if you have taken care of yourself you should be proud of it!
Thus, chronological age and physiologic age do not always coincide, and physical appearance and health status often do not always correspond to what is typical at a particular chronological age. When talking about aging and anti-aging, it is the physiological age we’re referring to. Ok, now that we got that cleared out, let’s move on.
