Professor Emeritus Yoshikazu Nishikawa of Osaka City University’s Graduate School of Human Life Science, and collaborators, have found that a substance that emits a specific fluorescence in vivo increases with age. The fluorescence is derived from advanced glycation end products (AGEs) and correlates with the life expectancy of C. elegans. The measurement technology of this model could be used for the search and evaluation of anti-glycation materials in the future.