From BigLeaguePolitics.com…
The United States suffered the greatest single-year decline in life expectancy in 2020 since the second World War, according to a report from the Centers for Disease Control.
US life expectancy declined from 78 years and 10 months in 2019 to 77 years and 4 months in 2020, amounting to a decline of one year and six months.
Life expectancy has consistently risen since World War II in the United States and other western countries, only starting to decline in the former during what some have called a transition to a third world country in 2015. (Life expectancy had modestly increased during the Trump administration, only for the progress made to be eroded in 2020.)