Age is the amount or the years of the period lived or existed by the person. The measure of the healthy body working is given by the biological age.
What is biological age?
Biological age or physiological age is the time lived by the person that comprises lifestyle factors like diseases, health, diet, exercise and many others. It refers to the measure of certain biomarkers.
It estimates the quality of the healthy lifestyle lived by that person and defines the healthy functioning of organs and the body.
On the other hand, chronological age is the factual age, social age is the estimation of the social role and responsibilities and mental age is the maturity age and the development of the brain.
Therefore, option B. biological age is the measure of how well the body is working.
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