Why life expectancy is higher in some places than in others?

Life expectancy varies across regions due to factors such as healthcare access, economic conditions, education, and lifestyle choices. Countries with robust healthcare systems, better nutrition, and higher standards of living tend to have longer life expectancies. Additionally, social determinants like education and income inequality play significant roles, as they influence health outcomes and access to resources. Environmental factors, including pollution and living conditions, also contribute to these disparities.