The life expectancy gap across different US population groups grew from 12.6 years in 2000 to 20.4 years in 2021, a study has found, showing an increase in racial and geographic health disparities over the past two decades. For the study, reported in the Lancet ,1 researchers divided the US population into 10 mutually exclusive groups called “the ten Americas” based on several factors including race and ethnicity, geographic location, income, residential segregation, and metropolitan status. They analysed trends in life expectancy at birth from 2000 to 2021 for each of the 10 Americas by year, sex, and age group. The …