That is why you often see a person who appears and acts younger than they really are, and why it’s important to think about your biological age in addition to your chronological age.

Two individuals born the same year might have different risks for developing certain age-related conditions – because they are aging at a different rate, even though they are the same chronological age. Unlike chronological age, your biological age will not necessarily equal the number of … Well done your Biological Age is XX. Chronological vs Physiological Age These two volleyball athletes are 2 years apart in age and grade (senior and sophomore), yet they are worlds apart from the standpoint of physiological development. Healthy Habits A person's physiological age reflects his or her health status and mayor may not reflect the person's chronological age. Chronological age is the exact age you are based on date of birth. It can be defined by a number of lifestyle factors including diet, smoking, exercise, work and environment. Chronological age has very little to do with our actual physical well-being. For example, say you're 43 years old. And after looking at data from 8,000 samples of 51 different cells and tissues, he found while most chronological and biological samples were the same age, some samples weren’t. Your age is your age. If you want to know your true age, don't look at the calendar. Your biological age or physiological age, on the other hand, refers to how old you seem and is much more malleable. As such, the number of years you have been alive – your chronological age – is not necessarily a good predictor of how well you are ageing. If you get a negative number, subtract that number from your chronological age. Physiological age, a measure of aging. While there is some exaggeration at play, there is a difference between a person's chronological age and physiological age and psychological age. Chronological age is determined from the date of birth, and despite what we might think, it does not reflect our “real” age. It’s influenced by your genes, lifestyle, behaviour, environment, and other factors. So, if you were born December 1, 1962, as of today, January 5, 2019, your chronological age would be 57 years, one month, four days old. Harvard Scientists Dr. David Sinclair and Dr. George Church are two of the world’s most famous and honored researchers in the field, and they well understand the need for reliable biomarkers of aging. Yet your chronological age is only a very small part of the story. Use the Health Age Calculator to find out your Biological Age which, affected by lifestyle factors, such as, fitness, habits and nutrition, is individual to everyone. It’s influenced by your genes, lifestyle, behaviour, environment, and other factors. Click here to tell your friends your Biological Age and let them find out theirs. Human Body's Chronological And Biological Age May Differ: Why Your Breast Tissues Are Older Than The Rest Of You.