Urbanization in China during historical times led to major health concerns due to infectious diseases and overcrowded urban areas.
Urbanization led to a concentration of sedentary populations in cities, creating ideal conditions for infectious diseases to thrive. The buildup of human waste and poverty, in addition to overcrowded areas, contributed to the spread of diseases in urban settings. Historical events like the Black Death plague in China had devastating effects on the population, leading to social chaos and famine.
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