Active comets lost a significant amount of volatile every time they pass through perihelion. As a result, comets will have less materials for sublimation, and one would expect that comets will continue to fade as they evolve. However, it is also suggested that the active lifetime of a comet can consists of multiple active stages separated by temporary dormant phases, making it difficult to identify true secular fading caused by aging of comets. The era of modern astronomy is unfortunately not long enough to cover the typical lifetime of a comet (usually a few hundred orbits); however, comets produce dust during their active stages, which are potentially detectable as meteor activity at the Earth. Here I discuss the effort of understanding cometary aging by examining different parts of the evolution spectrum of Jupiter-family comets (JFCs), a group of comets that dominates the cometary influx in the near-Earth space, using telescopic and meteor observations as well as dynamical investigation.