Greying is a term used in sociology and demography to indicate that an increasing proportion of a society's population is becoming elderly, typically defined as those aged 65 and over. This demographic shift is occurring in many countries around the world due to factors such as declining birth rates and increasing life expectancy, resulting in a larger percentage of the population being in older age groups. The greying of society has significant social, economic, and healthcare implications, including increased demands on pension systems, healthcare services, and social support networks, as well as potential changes in the labor force and economic productivity. It also raises questions about social roles, intergenerational relations, and the ways in which societies can adapt to the needs and contributions of an aging population.