Validation Study & AI

Scientists have developed biological clocks that read chemical tags on your DNA to estimate how fast your body is aging. However, until now, no one had systematically checked if these clocks actually work as dependable medical tools. This study evaluated whether DNA methylation clocks change when a person genuinely benefits from a treatment and stay steady when a treatment does not work. The researchers found that while these tools show promise, they need careful testing before they can be trusted. For everyday people, this means commercial biological age tests are still experimental and should not be used to guide personal medical decisions.