Articles
Original stories using population data, life tables and published research to examine how and why longevity differs. All 5 are built on the same validated WHO Global Health Estimates used everywhere else on this site.
Featured · Countries
Life expectancy differs by roughly 33 years between the extremes of the WHO dataset — but the gap looks very different once age enters the picture.
5 min read
Healthspan
Long-lived populations gain more healthy years than others — and their absolute gap between total years and healthy years also tends to be wider.
4 min read
Healthspan by countryAge
Nigeria and Norway are nearly two decades apart at birth. Among people who have reached the 80–84 age band, the difference narrows to 1.9 years.
4 min read
Years ahead explorerSex and longevity
Women live longer than men in 184 of 185 countries. The size of the advantage runs from about one year to ten, and that variation is the story.
5 min read
Years ahead explorerThe long view
Life expectancy gains have slowed in the longest-lived populations. Whether that means a ceiling is a very different question from whether it happened.
5 min read
Can humans extend lifespan?
