In a lifetime, human life expectancy roughly doubled — but the gains landed unevenly. How long can a newborn expect to live across the rich world and beyond, how much longer do women get than men, and how many of those years are healthy ones? Press play and watch.
Source: Our World in Data — Life Expectancy, drawing on the UN World Population Prospects, the World Bank, and the Human Mortality Database; healthy life expectancy (HALE) from the WHO Global Health Observatory. Retrieved Aug 2026 · tip: switch views, press play, and click a country in the legend to isolate it. These are period life expectancies (see caveats).
A first-draft write-up — the data and charts are real; the words are a starting point to make your own.
Life expectancy at birth is the single most-cited summary of a country's health: given today's death rates at every age, how long would a newborn live? It's blunt, but it travels well — you can lay wildly different countries on one axis and read decades of progress, and setback, at a glance.
Play the first view and three stories separate out. Japan and the Western Europeans climb to the mid-80s. South Korea makes the most astonishing run of all — from roughly the middle of the pack in 1950 to the front of it today. And the United States quietly falls behind its own peer group: it was never the leader, but the gap has widened for decades, and then the COVID dip hit the US far harder than anyone else — a fall of about two and a half years from 2019 to 2021, versus a fraction of that in Canada or Japan.
The contrasts are the point of adding countries beyond the rich world. India shows the steady, era-defining climb of a developing giant. South Africa shows the opposite of steady: a wrenching V-shaped collapse through the 2000s as HIV/AIDS peaked, then a sharp recovery as treatment scaled up. Averages hide these turns; the animation makes them impossible to miss.
Everywhere, and in every year, women outlive men — but by how much is not fixed. The second view plots the gap in years (female minus male). It runs to five, six, seven years in much of the rich world, and it widens and narrows with history: wars, smoking epidemics, and the male-heavy toll of alcohol and violence all leave fingerprints. Where the gap is unusually large, it's usually a story about how men are dying, not how long women live.
Living longer isn't the same as living well longer. Healthy life expectancy (HALE) estimates the years spent in good health, before disability and chronic disease subtract from the total. It sits roughly a decade below overall life expectancy everywhere — and the shortfall isn't uniform. The US, notably, loses more of its later years to poor health than its lifespan alone would suggest, which is part of why "we live long enough" and "we're healthy" are different claims.
Life expectancy is a mirror held up to a whole society at once — its medicine, its violence, its inequality, its habits. Few single numbers say so much.
Demography, survival, health over time — if it can be measured, there's usually a way to make it move and mean something.