As tissues age, some cells enter a state called senescence, where they halt division but refuse to die. These lingering cells can fuel age-related problems like cancer, tissue breakdown, and chronic inflammation. Researchers have long sought reliable ways to spot them, but current markers are often imprecise.

The new technique uses an AI-powered barcode that recognizes molecular signatures unique to senescent cells. By scanning tissue samples, the system can flag these 'zombie cells' more accurately than previous methods. This could help scientists track how senescence accumulates with age and how it varies across different organs.

Because the source is a single report, there are no conflicting findings to compare. The authors suggest the advance may eventually support earlier detection of age-related conditions and guide therapies that clear senescent cells. However, the work is still at an early stage, and validation in living organisms will be needed before clinical use.