Life expectancy at birth in the United States declined nearly a year from 2020 to 2021, according to new provisional data from the CDC’s National Center for Health Statistics (NCHS). That decline – 77.0 to 76.1 years – took U.S. life expectancy at birth to its lowest level since 1996. The 0.9 year drop in life expectancy in 2021, along with a 1.8 year drop in 2020, was the biggest two-year decline in life expectancy since 1921-1923.

Life Expectancy in the U.S. Dropped for the Second Year in a Row in 2021
https://www.cdc.gov/nchs/pressroom/nchs_press_releases/2022/20220831.htm