If you look older than your school friends, it might be a reason to worry.
For researchers have now warned that it could be a sign you’re more at risk of age-related illness such as osteoporosis, hearing loss and cataracts.
Academics in the Netherlands guessed the age of around 2,700 people aged 50 to 90, based only on pictures of their face, and grilled them on their medical ailments to try to tease out any trends.