Health and population surveys from 90 countries

The World Bank’s population data bank

This website by the World Bank provides visualizations for demographic data from around the world. Specific demographic data, such as total population, can be viewed through maps, charts, and graphs. Results can be filtered by sex, country, or year....

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.

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...

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...

Demographic definitions and key terms

This page provides a clear definition of demography and a glossary of demographic terminology. Demography is the science of populations. By investigating birth, migration, and aging, demographers seek to understand population dynamics. The Max...

The Department of Homeland Security manages America's border and immigration enforcement

DHS serves as the umbrella agency managing immigration enforcement, border security, and related public safety responsibilities. Learn more about the department's budget, strategic initiatives, organizational history, and coordination of multiple agencies.

View a map of countries with the safest and most dangerous drinking water

More than a quarter of the world's population lives in water-stressed countries, and a similar number use contaminated drinking water sources, which can lead to widespread disease, according to the World Health Organization. The Environmental Performance Index shows which countries have safe drinking water.

Search this citation-heavy database of nutrition and supplement research

Explore a reference site that aggregates and summarizes peer-reviewed studies on hundreds of supplements and dietary interventions. It is ad-free and funded by subscriptions, making it a health resource without a financial stake in what you buy.

South Asia and sub-Saharan Africa are most at risk from falling pollinator numbers

Researchers at the Harvard T.H. Chan School of Public Health found that declines in pollinator populations would lead to higher rates of nutritional deficiencies, particularly in developing nations. Nations with large populations, such as China and India, would also be significantly impacted.

Key milestones in the history of the World Health Organization

The World Health Organization, a UN agency founded in 1948, was first proposed at the 1945 UN Conference to coordinate global health efforts. This interactive timeline marks the WHO’s 75th anniversary with major public health milestones.

An interactive investigation into drugs and migration in San Francisco

This interactive article investigates the connection between the boom in US migration from Honduras and drug dealing in San Francisco. A high concentration of Hondurans are fleeing Siria Valley, where poverty and national murder rates run high...

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

The Dog Aging Project uses information from over 50,000 dogs to explore longevity

The study gathers health, lifestyle, and genetic data to understand what helps dogs live longer, healthier lives. Findings could also provide human health insights due to our shared surroundings and biology.

Despite privacy risks, scientists are using DNA in the air to assess ecosystem health

While DNA in soil and water samples has long been used for such analyses, airborne DNA is being incorporated into such efforts to monitor individual species abundance, detect invasive species, measure biodiversity, and determine the success of conservation actions. Future work may include detecting attacks from biological weapons.

One in 10 adults worldwide has diabetes

As of 2021, diabetes claimed at least 6.7 million lives and continues to kill one person every five seconds. Nearly one in two adults with diabetes don't know they have the condition, which is expected to increase in prevalence from 537 million in 2021, to 783 million in 2045.

See worldwide hearing loss by age group and country

This 2023 data from the Institute for Health Metrics and Evaluation shows the estimated number of people with complete hearing loss in different age groups per 100,000 people in the population. Individuals aged 70 or older make up the largest group with this type of hearing deficit.

A gallery of medical illustrations from NIH

The National Institutes of Health provides educational materials for broad use. The institute hosts a Flickr account with many different image galleries, including this one (with over 70 images to date) that illustrate and annotate curious phenomena, from the life cycles of a malaria parasite to the comparison of male and female bladders. Explore the gallery here.

HRW explores women’s rights around the world

Human Rights Watch’s page documents human rights violations around the world affecting women and girls. The international women’s rights movement has made great strides over many years, but women and girls around the world continue to face...

DESI is mapping the universe's expansion over the last 11 billion years

The Dark Energy Spectroscopic Instrument is conducting a five-year redshift survey of over one-third of the sky, measuring the receding motions and locations of about 35 million galaxies and millions of stars using light captured by 5,000 optical fibers.

The census reshapes House representation every 10 years

Conducted once every 10 years, the US Census determines how House seats are reapportioned among the states. The 2020 results shifted representation as state population growth and decline altered the geographic balance of political power.

Danish moms have a built-in support group through the healthcare system

Local Danish health departments put these groups together, assigning mothers into small support groups comprised of mothers in roughly the same area who gave birth around the same time. The purpose of the groups is to create a supportive network of new parents who can benefit from one another's experiences. The group's mothers decide how often to meet and what to discuss.

Explore more than 7,000 of the world's languages

Google collects open-source data on languages, detailing how many known speakers each language has, whether its endangered, and where in the world it is spoken.

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

What are zoonotic diseases?

Interspecies interactions are a breeding ground for disease transmission. This basic background information on zoonotic disease from the Centers for Disease Control and Prevention (CDC) chronicles the different ways humans can get sick, identifies what groups are particularly vulnerable, and offers links to other resources.

At least 7 eastern college campuses experienced surprisingly large HFMD outbreaks in 2018

The outbreaks at the college level caused a particularly nasty set of symptoms, including the usual blisters in the mouth and on the hands and feet—but also affected the genitals. They surprised health officials who weren't sure why so many young adults were being sickened, including more than 120 kids at Johns Hopkins University. The disease also caused outbreaks at campuses including Princeton, Dartmouth, West Virginia University, Lehigh University, Wesleyan University in Connecticut, and Mars Hill University in North Carolina.

Health savings accounts are designed to alleviate upfront costs for high-deductible health plans

High-deductible insurance plans often have low monthly premiums, but require policyholders to meet a set spending threshold on medical expenses each year before the insurance kicks in. Health savings accounts give high-deductible plan holders a tax-free savings account to balance the high upfront costs that come with an HDHP.

The Rohingya refugee emergency at a glance

This interactive website provides an in-depth dive into the Rohingya refugee emergency. According to the UNHCR, the influx of Rohingya refugees to Bangladesh is one of the largest and fastest-growing refugee crises in decades. Since 2017, an...

The 2026 Ebola outbreak is hampered by a lack of vaccine against the species of the virus, heightening the need for rapid tests to aid in disease control.

Calculate how much of your tax dollars go to each federal program based on your income, filing status, and number of children

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

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.

See the most iconic photos from four decades of LIFE magazine

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.

Explore the known asteroids, comets, and spacecraft involved in asteroid studies within our solar system with 'Eyes on Asteroids,' a 3D visualization from NASA.

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.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

See images of medical cases of firework injuries shared on this 'Instagram for doctors.' (Warning: Graphic content)

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

In its famous catalog, Sears sold $600 DIY house kits from 1908 through the 1940s, resulting in an estimated 100,000 'Sears and Roebuck homes.'

Scientists can determine Earth's past climate conditions by analyzing air trapped in microscopic bubbles within ice cores—columns of compressed snow layers that build up over hundreds of thousands of years.

Visualize how CRISPR-Cas9—a type of immune system used by single-celled organisms to attack invasive viruses—targets and makes precise changes to a gene's DNA.

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.

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

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

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

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.