What is your age – your real age? While nearly everyone knows their birth date, a body can look and function like that of a significantly younger or older person depending on physical condition and lifestyle. That is to say, your chronological age might be quite different from your biological age.[1] While there is no scientifically accurate gauge for biological age, you can get some sense of where you stand by measuring yourself. Test your conditioning, body composition, and lifestyle to determine whether you are living a healthy, more youthful life or beyond your years.