Could GLP-1 receptor agonists (GLP-1RAs), already used in obesity and diabetes, be repurposed as drugs to slow aging? Hong Kong, one of the places in the world with the highest human longevity, is also home to a scientific study on the effects of GLP-1RAs. For the first time, scientists at the Chinese University of Hong Kong (CUHK) have assessed their pharmacological potential in later life using a multiomics preclinical approach.