China has the largest population in the world, with over 1.4 billion people. The population is diverse, consisting of 56 recognized ethnic groups, with the Han Chinese being the majority. Urbanization has increased significantly, with more than half of the population living in cities, leading to changes in lifestyle and economic activities. The age structure in China is shifting, with a growing proportion of elderly individuals due to increased life expectancy and declining birth rates. This demographic trend poses challenges for the workforce and social services, as the country prepares for an aging population and seeks to balance economic growth with social stability.