New saliva test estimates risk of dying within a year using DNA analysis

Researchers have developed a new test called CheekAge, which uses a simple cheek swab to estimate a person's biological age and their risk of dying within the next year. This method analyzes DNA changes and is more accurate than previous blood tests. The study involved 1,513 participants and found that those with a higher biological age were significantly more likely to die within the year. However, the findings are based on retrospective data from individuals who have already passed away. Experts caution that while CheekAge can indicate increased mortality risk, it cannot predict specific death dates. The test may help identify lifestyle factors affecting health but should not be seen as a definitive mortality forecast.