Even when people are born in the same year, they can often look very different as they age. Some appear younger, and others older than their chronological age. But it’s not just looks – earlier this year researchers were able to show that people do indeed age at different rates. Now another group of scientists claims to have developed a way of testing how well a person is aging, and could help health professionals to predict who might be at a higher risk of dementia or other age-related conditions.
“We use birth year, or chronological age, to judge everything from insurance premiums to whether you get a medical procedure or not,” explained James Timmons, who led the study, published in Genome Biology, in a statement. “Most people accept that all 60 year olds are not the same, but there has been no reliable test for underlying ‘biological age’.”