NAGANO—Okinawa Prefecture once boasted the longest life expectancy in the country, but it has now dropped well out of the top ...

For most of human history, life unfolded quickly and ended abruptly. In the early 19th century, global life expectancy hovered around 30 years, shaped by war, famine, and the relentless churn of ...

Decades of advances in medical technology and public health are causing global populations to age. While achieving longer ...

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.