Measure your age by measuring the bacteria in your gut
According to a recent study, the bacteria in your stomach may be able to accurately measure your biological age.
The microbiome
It has become clearer in recent years that the communities (microbiome) of bacteria, yeasts, and other microbes that live in our gut are involved in aging. This is especially true for the chronic inflammation associated with aging.
Source:
https://www.leafscience.org/gut-bacteria-to-measure-age/