We all like to imagine we’re ageing well.
Now a simple blood or saliva test promises to tell us by measuring our “biological age”. And then, as many have done, we can share how “young” we really are on social media, along with our secrets to success.
While chronological age is how long you have been alive, measures of biological age aim to indicate how old your body actually is, purporting to measure “wear and tear” at a molecular level.