The maximum human lifespan is years

The maximum human lifespan, by how you define it, is currently recorded at 122 years, 165 days, held by Jeanne Calment. She lived from 21 February 1875 – 4 August 1997.

However, we have yet to define 122 years as the maximum age, since future breakthroughs in medical technology may allow people to live much longer.

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada