Testing for dementia risk

A test that can track how well a person is aging could help doctors identify patients who are most at risk of dementia and other age-related conditions.

Those picked out as aging fast could be referred to clinical trials for treatments that try to prevent neurodegenerative diseases or slow the aging process itself.

In another use of the test, doctors could check the biological age of organs that might be suitable for transplant patients, and use kidneys, livers and other tissues from donors who would otherwise be ruled out on the grounds of old age.

Read more from The Guardian.