Covid plus overdose deaths drove down life expectancy in 2020

Life expectancy in the U.S. plunged last year in the largest one-year drop since World War II, the Centers for Disease Control and Prevention reported Wednesday, further widening the longevity gap between the U.S. and comparable countries.

Deaths from Covid-19 and drug overdoses fueled the decline — wiping out any improvements the country made in decreasing deaths from cancer and chronic lower respiratory diseases — leading to a 1.5-year drop and bringing the life expectancy at birth down to 77.3 years. (Life expectancy at birth refers to how long a person born in the year being studied — in this case, 2020 — is expected to live.