Basically, each person has two ages: a chronological age, which tells us how old we are based on the time that has passed on the calendar, and a phenotypic or biological age, which tells us how our body functions compared to the average fitness or health level. “Chronological age does not mean that we are old. It's a superficial figure,” says Professor David Sinclair, one of the directors of the Paul F. Glenn Center for the Biology of Aging at Harvard Medical School. “Each person’s biological age is different, because it depends on our genes, on what we eat, what dietary supplements we consume, how much we exercise and what toxins we are exposed to,” Sinclair added.

That is, your well-being depends on you and not just on the number stated on your ID!

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