(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 ...

After more than a century of steady progress, new research warns that the world’s life expectancy boom is slowing, largely because improvements in early-life mortality have already been achieved.