A new test claims to tell how well you’re ageing – and even when you’ll die. But I’d rather not know

A research team from Harvard Medical School has developed an RNA-based ‘transcriptome clock’ that claims to measure biological aging and estimate an individual’s lifespan. The test analyzes gene expression patterns to generate a personalized aging score and projected longevity, according to coverage from *동아사이언스* and *ScienceAlert*. The approach builds on earlier epigenetic clocks but focuses on RNA transcripts rather than DNA methylation, offering a dynamic snapshot of cellular aging processes.

Coverage emphasizes the scientific novelty of the method, with *The Guardian* framing it as a tool that could disrupt personal health awareness—though some outlets, like *CU Anschutz newsroom*, also highlight foundational biology (e.g., telomere shortening) to contextualize the findings. Ethical concerns about psychological impact and potential misuse dominate discussions, particularly in *The Guardian*, which contrasts the test’s clinical promise with public reluctance to confront mortality predictions. Watch for follow-up studies validating the clock’s accuracy, regulatory responses to commercialization, and public reactions—especially from bioethics groups.

Coverage does not yet specify whether the test is available outside research settings or how it compares to existing longevity assessments like epigenetic clocks.