Assess why nations with high income levels have longer life expectancies. What factors make citizens in these nations more likely to live longer?

Answer:

Nations with high income levels tend to have longer life expectancies because they can invest in reliable health-care systems, preventive medicine, vaccinations, sanitation, and clean water. Citizens are more likely to have nutritious food, safe housing, education, and access to doctors and medicines. Early diagnosis and treatment, along with safer living and working conditions, help prevent disease and reduce premature deaths.