Programmed aging is a biological theory suggesting that aging is a regulated process, controlled by genetic and cellular mechanisms. This concept posits that organisms have built-in biological clocks that dictate the lifespan and aging process, leading to gradual deterioration over time. Research in programmed aging explores how specific genes and cellular pathways influence longevity and age-related changes. Scientists study organisms like fruit flies and mice to understand these mechanisms, aiming to uncover potential interventions that could slow down aging or enhance lifespan through genetic manipulation or lifestyle changes.