What happened
The study, published May 27, integrated more than 11,000 transcriptomes from more than 25 tissues across four mammals: mouse, rat, macaque, and human. The authors built interpretable biomarkers of chronological age and expected mortality, identified conserved ageing and mortality signatures, and connected markers such as CDKN1A and LGALS3 with mortality and multimorbidity in UK Biobank data.
The part that feels important is the modular view. Inflammation, interferon signaling, mitochondrial function, chromatin modification, and extracellular-matrix organization are not one big blurry "ageing" blob. They can be tracked as subsystem clocks with different intervention effects.
The practical future of healthspan may look less like chasing one anti-aging lever and more like instrumenting the body well enough to see which cellular systems are drifting, when, and why.
Source
Reported by Universal transcriptomic hallmarks of mammalian ageing and mortality via nature.com, published May 27, 2026.