At the same time, the survey also shows that the difference in life expectancy among ethnic groups is deepening. In the first half of 2020, the average life expectancy of African Americans decreased by 2.7 years from the previous year to 72 years, offsetting the increase in the previous 20 years; The average life expectancy of Hispanics dropped from 8 1.8 years to 79.9 years. The average life expectancy of whites decreased by 0.8 years to 78 years.
Two factors affecting life span
Economic income plays a decisive role:
If we draw a curve of China's contemporary per capita GDP and life expectancy in the past 60 years, both of them are rising from southwest to northeast, and there is a certain relationship between economic income and national life expectancy.
The average life expectancy in China is 77 years.