The disparity in life expectancy between wealthy and impoverished nations has notably narrowed

Global life expectancy has more than doubled since the 1850s

The human species experienced a dramatic increase in expected lifespan over the past 150 years. Antibiotics, improved sanitation, and better worldwide food distribution are a few factors contributing to this rapid transformation. Use this interactive resource to explore longevity gains over time and compare these improvements across the globe.

How global conditions have improved over 200 years

In an era of 24-hour news, it can feel as if the world is on a perpetual downward spiral. This set of visualizations zoom out, and show how global living conditions have improved in recent centuries. The percentage of people living in extreme...

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

How life ranks in South Korea

As South Korea developed over the last half of the 20th century, quality of life soared. The country now outperforms the world average when it comes to education, health, and civic engagement, according to the OECD’s Better Life Index. In this dashboard, you can see where South Korea ranks in terms of housing, jobs, income, and more, and compare it against other developed countries.

Many countries, like Iceland and Norway, offer pensions to elderly citizens

Iceland, Luxembourg, and Norway offer some of the highest annual pension payouts at over 30,000 euros. The below chart shows how European nations stack up in terms of which offer the highest annual pension payouts.

In 2026, Finland was named the world's happiest country for the ninth consecutive year

Analysts attribute Finland's joy factor to its wealth, social safety network, and high life expectancy, among factors. The results were based on answers from roughly 100,000 people in 140 countries and territories. Respondents were asked to rank their life satisfaction on a scale of 0 to 10. Finnish respondents gave an average life satisfaction score of 7.7; Afghans answered 1.4. The US, in 23rd place, reported an average score of 6.8.

The average retirement age by country, visualized

In the US, the average retirement age was 64 as of 2020. The Organization for Economic Co-operation and Development projects a two-year increase in the average retirement age by the mid-2060s.

Visualizing cause of death over time in America

As people age, their life expectancy decreases, but the timing and speed of this decline have evolved over the years. Check out this chart which shows the shift in various causes of death of Americans over the last few decades. Data from the...

Under-5 child mortality has been cut in half since 2000, UNICEF reports

The United Nations Children's Fund works globally to protect children's rights and well-being. Its 2024 report on child mortality reveals that under-5 deaths have halved since 2000. The report includes interactive data visualizations that can be sorted by year or topic.

Why Hawaiians live longer

Hawaii has the longest life expectancy at birth out of all 50 states, according to the US Centers for Disease Control and Prevention. Key factors include strong healthcare, lots of sunlight, and active lifestyles.

In 2023, Native Americans had the lowest life expectancy at birth among all racial and ethnic groups

Native Americans and Alaska Natives face significant health disparities linked to chronic underinvestment in reservation health infrastructure, poverty, and multigenerational psychological harm—often called historical or inherited trauma.

Marriage rates are declining, especially in the richest countries

89% of the world’s population now live in countries with falling rates. Increasing costs of living, the financial burden of starting a family, and the rise of secularism are some of the key factors reducing marriage rates among the less affluent.

Visit these 'blue zones,' where people live the longest

Blue zones, a term coined in 2004 by National Geographic Fellow Dan Buettner, are regions in the world where people live the longest and healthiest lives. Researchers have identified a few key aspects defining the culture of these areas—physical activity, diet, purpose-driven lives, and more. Explore the top five blue zones from across the world here.

Why some nations reach economic success and others don’t

The 2024 Nobel Prize in Economics winners, Daron Acemoglu, Simon Johnson, and James A. Robinson, were honored for their compelling research on the factors that influence a nation’s prosperity. Spanning two decades, their work presents insights into how societal organization can explain the income discrepancies between different countries. In general, their research shows that economic success favors more free and open societies. Listen for more fascinating insights.

Lung cancer advances are making a big difference

Lung cancer deaths are declining faster than new cases due to advances in treatment. The progress illustrates what is possible, even for a cancer that has long had a poor prognosis.

The number of billionaires in Saudi Arabia is projected to increase by 183% by 2031

Countries in the Middle East and Asia are projected to have some of the largest economic expansions by 2031, including within their billionaire populations. The global average growth projection for billionaires is 26% between 2026 and 2031.

Poverty rates by US state

As of 2022, 37.9 million people in the US were living in poverty. But those people aren't evenly distributed among the 50 states. Some states and regions of the country are more impoverished than others. For instance, US poverty rates are relatively higher in the South than they are in the North. See the state-by-state breakdown with this map.

There may be 500,000 additional malaria deaths by 2050

Research published in the journal Nature in January 2026 estimates that by 2050, climate change may trigger more than half a million additional malaria deaths and over 100 million additional malaria cases. The work is based on climate change projections and available disease information and did not incorporate new vaccine uptake.

The world rapidly decolonized after World War II

After WWII, weakened European powers faced mounting resistance from colonized peoples. Between 1945 and 1980, dozens of nations across Africa, Asia, and the Middle East gained independence.

Neglected tropical diseases affect more people than the population of Europe

This group of conditions, which includes hookworm, sickens roughly one in seven people on the planet—a tally which dwarfs Europe's population of roughly 450 million. International cooperation and donations are helping to control some of these illnesses, which can be caused by parasites, viruses, and bacteria. They're all treatable or preventable, but primarily occur among poor, isolated communities that may not receive adequate care.

Roughly half of the world's nations are (relatively young) electoral democracies

Classifying countries by governance type involves leaning into technical systems like the Regimes of the World classification. In this data dive, see a map of the world's oldest and youngest electoral democracies, as well as liberal democracies (which are measured by the protection of minorities and checks on executive power from the legislature).

Digital healthcare is helping emerging economies

In a world that is rapidly becoming more digitized, low and middle-income countries (LMICs) are trailblazing a path to cohesive digital healthcare ecosystems. This article from McKinsey & Company analyzes the different digital healthcare strategies...

How life looks different with a $75K household income versus $150K

"The cleanest way to describe the gap is that $75K is often about stability, while $150K can be about optionality, but only if fixed expenses do not expand to consume the raise," said one finance professor.

Several years after the English law changed, organ donation rates haven't improved

A 2024 analysis found that several years after England changed its organ donation system to an opt-out donation system there was no improvement to the country's organ donation rates, perhaps highlighting the need for better understanding and education around the law.

Pre-revolution Cuba was prosperous—and deeply unequal

On the eve of Castro’s 1959 revolution, Cuba ranked among Latin America’s most advanced societies, with high incomes and health outcomes. Yet stark racial, rural, and political inequalities—compounded by corruption and US intervention—made the system weak and primed for revolt.

Geneva, Switzerland, has some of the highest grocery prices worldwide

Other cities that made the top 20 on the list of the global cities with the highest grocery prices around the world include Boston, Hong Kong, and Toronto, at least as of 2025.

Cultural norms about how to handle the bodies of loved ones in communities in West Africa have hampered Ebola responses.

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

See the most iconic photos from four decades of LIFE magazine

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

In preparation for this weekend's Eurovision finale, which is something like the World Cup of pop music, here's a young Céline Dion performing (for Switzerland?) at the 1988 competition.

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

Track the location of the Voyager probes, currently between 13 and 15 billion miles away from Earth.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.