"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You’ve heard it for years: Age is just a number. But there’s been a huge focus lately on biological age, ...

Biological age has become a fad term used by many, including the Kardashian family who publicly underwent extensive testing to determine their biological ages during an episode of The Kardashians in ...

TruDiagnostic - a health data company and CLIA-certified laboratory specializing in epigenetic testing that measures biological age and cellular function. Its TruAge test uses advanced DNA methylation ...