(CNN) — Life expectancy fell across the majority of high-income countries, signaling a collective and simultaneous decline among affluent nations for the first time in decades, a new study finds.

Australia has made progress in reducing socioeconomic inequalities in life expectancy since the late 2010s, according to new research from The Australian National University (ANU), setting the country ...

Figures for national life expectancy by country tend to be within bandwidths. At the moment, the US is relegated to the lower end by comparison with the rest of the world, one rank above Cuba. That is ...