Biological age tests are becoming popular with biohackers and longevity seekers. They're not perfect health indicators, but they may tell you a little something about your aging body. Even enacting ...

A new heart age calculator developed by researchers at Northwestern University in Evanston, Ill., shows many Americans have hearts significantly older than their actual age, according to a study ...

South Koreans may be getting a year or two younger after lawmakers passed a new law to standardize the way people's age is calculated. Starting in June 2023, ages reported on official documentation ...