Governments around the world are struggling to measure loneliness

See the UCLA Loneliness Scale, often used to measure global loneliness

This 20-question survey, first established in the late 1970s and subsequently revised and often adapted, aims to measure the subjective experience of loneliness. Respondents rate various items on a scale of 1 (Never) to 4 (Often). One revision of the test (not included here) offers an abbreviated three-question version that focuses on how often you feel companionship, left out, and isolated.

We may never know if Americans are now lonelier than ever before due to limited data

Formal data collection on loneliness is recent, limiting historical comparisons from before the year 2000. That means statements about how people are more lonely than ever before are difficult to prove or disprove.

The British government established a minister for loneliness in 2018

Tracey Crouch was appointed to this new position after the country's prime minister created the unprecedented job to tackle the country's loneliness issues. Survey data suggests that about 14% of the population—9 million people—often or always felt lonely in Britain at the time (in 2018).

1 in 5 American adults report daily loneliness

Twenty percent of US adults said they felt lonely "a lot of the day yesterday" in Gallup polling conducted in 2024. The survey was conducted with more than 6,000 adults who took part in a web survey.

Japan has a government office dedicated to tackling loneliness and isolation

The new government office was established in 2021, following the UK's example. It's designed to combat loneliness and the feelings that can proceed suicides. The office's homepage features a chatbot designed to help individuals answer questions and specifically connect with one of 150 support programs.

Volunteering can alleviate the feeling of loneliness

The Freakonomics team explored loneliness in this 2020 podcast episode and discussed how volunteering can be a powerful way to make lonely individuals feel needed, like they have a purpose, and combat feelings of isolation.

Read the Surgeon General's 2023 loneliness report claiming loneliness is an epidemic

This report details the specific health threats linked with loneliness, including that loneliness and social isolation can increase the risk of premature death by nearly 30%. Loneliness lowers our capability to mount an effective immune response to viruses and respiratory illness, can cause chronic inflammation on par with physical inactivity, and increases the risks for anxiety, depression, dementia, heart disease and stroke.

Explore this animated story about loneliness that situates modern statistics about isolation.

A report on social well-being around the world

This extensive report provides quantitative evidence on social well-being trends for 36 countries. Data cover demography and family characteristics, employment and wealth, mobility and housing, health status, social expenditure, subjective...

Loneliness and isolation aren't the same thing

One can experience loneliness even in a crowded room. Isolation refers to social disconnection whereas loneliness is the distress that comes from lacking human connection and perceived isolation.

Loneliness is more dangerous to your health than smoking.

See America's loneliness and disconnection—charted.

Explore an interactive map showing what makes people happy.

Using 10,000 responses collected from people around the world about what makes them happy, this map offers insights into how relationships, finances, purpose, and small treats all contribute to a person's contentment. Recent data suggests that young people today are less happy than those in previous generations, indicating a need to reflect on what really matters in life.

Why the US can’t end poverty

Despite being among the wealthiest nations in the world in terms of GDP, the US has a major poverty issue, with more than 37 million Americans living in poverty as of 2023. Part of the issue is that the standards by which the US measures poverty are outdated: The official poverty measure in the US today is based on calculations from the 1960s. Find out more in this video.

See how anxiety disorder rates vary across 200+ countries, with Portugal, Malta, Brazil, and Iran reporting the highest burdens.

Peek into the love lives of thousands of strangers whom Stanford University researchers have been tracking since 2017 on this interactive page.

Perceived isolation ages you

Mounting evidence suggests that socialization is a vital component of maintaining good health. Research published in 2024 from Mayo Clinic researchers analyzed the social lives of more than 280,000 adults and concluded that individuals that weren't likely to participate in extracurricular social activities and get-togethers were more likely to have a biological age older than their actual age—meaning that you may be 60 but health indicators would suggest you're older.

In 1974, Los Angeles’s Community Analysis Bureau built a smart city

Los Angeles utilized aerial imaging and cluster analysis to gather and interpret civic data, leveraging surveillance technologies developed by the Department of Defense during the height of the Cold War. Instead of being used for military purposes, data insights helped direct social services to high-poverty neighborhoods.

How fantasy baseball fights the loneliness epidemic

Experts believe the erosion of traditional community organizations has led to a loneliness epidemic. This deep dive explores how fantasy baseball has filled the gap for some men, providing a stand-in social network.

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.

Helping support others in older age linked to longer life

Analysis of findings from a long-term study of older couples first interviewed in 1987 and then followed for the next five years found that individuals who lend support to friends, neighbors, and relatives live longer. Non-helpers were more than twice as likely to die as helpers during the five-year period. That's even after controlling for factors including age, gender, and physical and mental health.

Smart city systems can increase positive feelings toward local government

A 2018 study analyzed 50 global cities to determine whether smart city technologies enhance residents' quality of life. It found that these technologies can decrease the time spent interacting with healthcare and government by 45% to 65%, while also decreasing the disease burden by 8% to 15%.

Explore US public health data

This resource tracks key US health metrics, including mortality causes, child survival rates, and life expectancy comparisons, to inform future health improvements, with regularly updated global estimates.

How do astronauts battle loneliness and depression?

You’re stranded hundreds of miles away from your friends and family, constantly surrounded by coworkers who also are your roommates, and you’re only allowed the shortest of walks outside. There’s also no takeout, and gravity has essentially broken up with you. You might need a little help adjusting mentally. That’s where space psychologists and psychiatrists step in, according to this article.

Mapping the world's cell towers

Millions of cell towers around the world help connect the world's 8 billion people via cell phones and the Internet. But access to such coverage, while still expanding, is not equal. This data visualization depicts the world's many cell connections across a global map, revealing cell use hot spots and the world's many gaps in coverage.

Many issues facing urban environments cannot be solved by smart technologies

Although connecting systems to the Internet of Things can provide improved efficiency in municipal systems, problems such as limited affordable housing are driven by larger socioeconomic factors. Some experts suggest that local governments should focus resources on practical solutions to these issues rather than investing in smart technologies.

Explore a worldwide ranking of smart cities

This interactive site evaluates residents' perceptions of the infrastructure and technologies available to them across 146 cities to produce a ranking based on a Smart City Index. Users can utilize the City Comparison feature to compare their city with others around the world.

Millions of aging Americans are facing dementia or cognitive impairment—alone

An estimated 4.3 million people aged 55 or older who have cognitive impairment or dementia live alone in the US. The individuals facing these challenges are more likely to be women, people of color, and to generally be poorer and less educated than other older adults who are also living alone.

LonelyWiki compiles obscure Wikipedia articles with fewer than 2,000 annual readers

LonelyWiki calls itself a museum of forgotten knowledge. A "lonely article" features real prose, at least 500 characters, no stub placeholders, and under 2,000 annual views. Each one represents a person who decided something was worth documenting without editorial commission or trending news.

Astronomers use a set of scaffolding methods to measure distances across the universe

Different methods are used depending on how far away an object is—from radar for nearby planets, to parallax for stars, to redshift and supernovae for distant galaxies. These tools allow scientists to chart the universe across unimaginable scales using astronomical units (AU), light-years, and parsecs.

External factors, not aging itself, lead to sleep loss in older adults

Though it is often believed that people need less sleep as they age, the recommended sleep guidelines for all adult age groups are almost identical. However, factors such as medication use, lack of physical activity, and loneliness can lead to sleep problems, and thereby lead older people to believe that they actually need less sleep than they do.

Explore the state of religious freedom worldwide with an interactive data visualization.

Excessive social media use is linked to feelings of increased isolation, mental health declines, increased stress and general dissatisfaction among teens.

Teen depression levels jumped during the pandemic

US government data published in 2025 but gathered from August 2021 through August 2023 indicated that depression prevalence among teens aged 12 to 19 was at 19.2%. It was even higher among females of that age group—26.5%

Evaluating the world’s 'smartest' cities

A ranking of "smart cities" analyzes cities by economical and technological aspects as well as quality of life, inclusiveness, and care to the environment.

Google Search trends reveal truths about society that traditional surveys miss

Studies of human behavior show that survey respondents may lie to present themselves more favorably. By studying anonymous search data, researchers have uncovered hidden racism, mental health struggles, and interest in taboo or stigmatized topics.

Explore rankings of large language models

The SEAL LLM Leaderboards provide benchmarks for LLMs by assessing them against agentic, frontier, and safety tasks, providing insights into each model's strengths, deficiencies, and failures.

The world's 10 best places to live

The Economist Intelligence Unit's Global Liveability Index ranked 173 cities based on stability, healthcare, culture and environment, education, and infrastructure. The report shows an overall increase in livability scores compared to previous...

Rural vs. urban: Exploring the digital health divide

Though digital health tools (DHT) hold potential to transform healthcare accessibility, their adoption varies across urban and rural landscapes. This comprehensive study, drawing from the 2019 Health Information National Trends Survey, evaluates the...

Mapping hearing loss in the US

Nearly 10% of Americans suffer from some degree of hearing loss, measured as the inability to hear sounds lower than 25 decibels. The incidence of hearing loss increases with age and is typically higher among men. Recent analysis produced a puzzling observation researchers can't quite explain: There's a larger incidence of hearing loss among rural populations than in urban centers. Explore the data with this map and explainer.

Obsessing over sleep metrics leads to worse sleep quality

Over one-third of Americans have used wearable technology to track their sleep, and the anxiety over having perfect sleep data, or orthosomnia, has made getting a good night's sleep more difficult. Experts agree that most devices cannot correctly assess sleep details, making the data unreliable.

What its like to live in the world’s ‘smartest cities’

What’s it like to live in a smart city? The BBC interviewed residents of five of the world’s smartest, as determined by the International Institute for Management Development, to find out. (See previous resource for those rankings.) Common praises included ease of transportation, sustainability initiatives and proximity to nature.

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

In 1950, people in Norway lived to age 72, on average, while those in Mali lived to just 26. By 2015, the countries with the worst conditions had made such significant progress that the global average life expectancy had surpassed the rate of any nation in 1950.

Health and population surveys from 90 countries

The Demographic and Health Surveys (DHS) Program collects, analyzes, and disseminates data on population, health, HIV, and nutrition. The site compiles data through more than 400 surveys in over 90 countries around the world. Explore demographic...

Nostalgia is a psychological coping mechanism that can help combat loneliness—but it's created from bias

Researchers have observed that though nostalgia can help counteract feelings of loneliness, our memories of the past are somewhat rose colored. Negative emotions seem to fade faster than positive ones, a phenomenon that they suggest may be a psychological coping mechanism so that memories don't hurt every time they're recalled. (Some users may experience a paywall.)

The world's most peaceful countries

Global Peace Index presents the most comprehensive data-driven analysis to date on trends in peace, including the most and least peaceful countries in the world.

Climate data is monitored globally using tools from satellites to backyard gauges

Scientists use satellites, balloons, ocean buoys, and land-based instruments to track climate variables like temperature, precipitation, and wind. These tools gather data from deep ocean waters to the upper atmosphere.

Extending the worldwide lifespan by one healthy year is worth $38T

This econometric study attempts to estimate the economic value of increasing the global healthy lifespan by one year—and to answer the question of whether it is better to extend lifespans or slow the rate of healthy aging.

Global CO2 levels as measured at Hawaii’s Mauna Loa Observatory, managed by the US government’s NOAA.

The Global Monitoring Laboratory conducts research on greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.

Blue zones are regions with unusually high numbers of centenarians

Factors thought to contribute to longevity in these regions include diet and social connections, but their legitimacy is often questioned due to a lack of rigorous scientific methodology and potential record inaccuracies.