Generational Garbage Collection is a memory management technique used in programming languages to optimize the process of reclaiming unused memory. It is based on the observation that most objects have a short lifespan, meaning they are created and discarded quickly. By categorizing objects into generations—typically young, middle-aged, and old—the system can focus on collecting garbage from younger generations more frequently, where most unused objects reside. This approach improves efficiency by reducing the time spent on memory cleanup. When the Garbage Collector runs, it can quickly identify and remove short-lived objects, while older objects are collected less often, as they are more likely to still be in use.