Alcohol use disorder is the most common addiction in the US

Addiction is defined as chronic compulsive drug use despite adverse consequences

This resource from the National Institute on Drug Abuse provides a comprehensive look at addiction as a complex brain disorder. It explores why people initially take addictive substances and how continued use alters the brain’s reward system.

'1440 Explores,' Episode 2: Why We Drink and What It Does to US

Alcohol is the world's most popular drug—a molecule that can calm or excite and bond communities or tear them apart. We trace alcohol's journey from ancient rituals to modern hangovers, uncover how it shaped civilizations, and dive into the neuroscience of how it affects your brain and body. With insights from leading experts, we ask: Given all that we know, why do humans continue to drink?

Trauma is a primary risk factor for substance use disorder later in life

Studies indicate 75% of people with substance use disorder have experienced at least one traumatic experience in their life. These experiences alter brain function, leading to heightened stress and emotional pain. Substances offer temporary relief, but this often results in dependency.

Alcoholics Anonymous leads to increased abstinence compared with other treatments

That's according to a 2020 meta-review of 27 studies. This large analysis found that Alcoholics Anonymous had between 22 and 37 percent abstinence numbers as compared to other treatments that had figures of about 15 to 25 percent. AA was founded in 1935, in Ohio, and depends on peer connections and consistent meeting availability. (Some users may experience a paywall.)

Alcohol is responsible for 5% of cancer cases and 4% of cancer deaths in the US

Alcohol consumption is linked to at least eight different types of cancer, including liver, breast, and throat. The risk comes from ethanol, which turns into DNA-damaging acetaldehyde. Experts recommend limiting intake or quitting altogether to reduce long-term health risks.

Explore why Americans are drinking less alcohol

US alcohol consumption fell 5% in 2025, with beer and wine leading the decline. Economists point to tighter budgets and less face-to-face socializing overall, while younger Americans are increasingly choosing not to drink.

Is workaholism real?

Though work addiction is not officially recognized as a medical condition, it mirrors many patterns of other behavioral disorders. This exploration from BBC News examines the issue through Workaholics Anonymous, with a special focus on firsthand accounts from support group members.

Delirium tremens is the most severe form of alcohol withdrawal

Due to the impact of alcohol on the central nervous system, withdrawal from the drug can cause severe effects. Roughly 1% to 1.5% of heavy drinkers will experience delirium tremens, which includes tremors, seizures, hallucinations, and more. Onset typically occurs 48-72 hours after the last drink.

1 in 10 US adults are taking medication for depression

A US government report indicates that about 10% of US adults took prescription medication for this disorder in 2023. Women, at 15.3%, were more than twice as likely to take one of these medications than the 7.4% of men.

How did the pandemic affect mental health?

Read this research brief to learn more about why heightened mental health and substance use concerns persist three years after the outbreak of COVID-19. According to a recent survey, the vast majority of American adults view the nation as facing a...

Learn about the US opioid crisis in this free course

Where did the US opioid crisis come from, and how did it spread? Learn this and more in this free, online Harvard University course. Learn about the disease model of addiction treatment and management, and get up-to-date with public health and law enforcement's current harm reduction practices. This free resource gives users a greater understanding of opioid addiction and the epidemic still haunting the US.

View the religious breakdown of the United States

This resource presents religious data by state and region, and nationwide. The primary religious group in the US is Christians, making up 62% of the adult population. Twenty-nine percent of US adults identify as religiously unaffiliated.

About 10%-15% of people experience chronic insomnia

How often would you say you struggle to stay or fall asleep? If it's more than three times per week (and has been going on for at least one month), then you might have one of the most common sleep disorders: insomnia.

Breast, prostate, and lung cancer are the most common forms of the disease

Close to 1.8 million cases of cancer are diagnosed each year in the US, with more than 600,000 deaths (about 0.2% of the total population). This visualization tool offers a searchable database of aggregate statistics on common cancers by gender, race, state, and other demographic information.

Arthritis affects almost 60 million Americans

Arthritis refers to a range of conditions resulting in joint pain that currently affects nearly 60 million people in the United States alone. This resource from the Centers for Disease Control and Prevention explores the basics of arthritis and provides resources for understanding its near-universal impact on our population.

Losing the kids to video games

An estimated 60 million people suffer from internet gaming disorder worldwide, a category created by the World Health Organization in 2018 to help communities support individuals plagued by pathological play. As the world's most-played game of all...

USA Today asked readers about their grief—and received more than 700 responses

The submissions included one moving story of two women whose sons died by drug overdose. The duo wrote that they found each other in a support group and decided to navigate their respective difficult situations by starting a podcast together called "Two Moms with Two Dead Kids," which focused on what life was like in the years following the deaths of their children.

Swimmer's ear is America's most common waterborne illness

Federal government analysis of the roughly 7 million waterborne illness cases that occur annually in the US found that swimmer's ear comprises some 4.7 million, or 65%, of the annual waterborne illnesses and 20% of hospitalizations. Norovirus infection comes in second place.

See the growth of US consumer debt

Americans reached an all-time high debt burden in 2024. Data compiled from The Kaplan Group shows the evolution of auto loans, mortgages, credit card debt, and student loans from 2003 to 2023, and finds that after a brief decline after 2008, the total debt burden grew rapidly.

Ibogaine, a psychedelic substance, can be used to treat mental illness

Although the substance is banned in the US, it's legal in Mexico. Americans who have traveled there for treatment, including the NFL's Braden Smith, say the drug helps deal with conditions like obsessive-compulsive disorder.

Ranking the most popular undergraduate degrees of the last decade

Roughly 2 million Bachelor's degrees are awarded by colleges and universities in the US every year, but within that number there are big shifts in the popularity and decline of certain majors. This data visualization breaks down the biggest gainers...

More than 90% of America’s food allergies are triggered by 9 foods

Milk, egg, peanut, tree nuts, soy, wheat, fish, shellfish and most recently, sesame, are recognized as the most common food allergies in the US. Together, they are responsible for at least 90% of the serious food allergy responses in the country.

The most taxed states in America

Some states in the US have higher taxes than others. Hawaii, for instance, has the highest total tax burden in the country at 13.9%, whereas Alaska has the lowest overall tax burden at 4.9%. New York has the highest individual income tax burden; and eight states have no individual income tax. See a map of the most-taxed US states here.

A map of global drug trafficking

The worldwide illegal drug trade continues to flourish. Accounting for almost 1% of the world’s financial revenue, the cocaine trade alone boasts an annual turnover of an estimated $85 billion. This infographic, from Around the World: An Atlas for...

Alzheimer's is most prevalent in the South and the East

Risk factors for Alzheimer's can include age, race, education, and income levels, exposure to pollutants, and much more. As of 2023, these factors are seen in higher incidence rates for those above 65, in the southern and southeastern parts of the US.

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

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.

11 people died from firework injuries in the US in 2024.

Animal phobias are likely the most common type of phobias, followed by an extreme fear of heights.

Between 10 million and 50 million people in the US develop rashes from poison ivy, poison sumac, and poison oak each year.

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.

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.

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

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

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

An investigation suggests a Scottish island became awash in forever chemicals via seafoam and seaspray—raising questions about what that means for the safety of other coastal areas.

See 33 images that became central to huge scandals, including a young Charles and Camilla, Michael Jackson's baby on a hotel balcony, and Hugh Grant's mugshot.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

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.

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

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.

A small portion of The Winstons' 'Amen, Brother,' an obscure '60s gospel record, is the basis for thousands of hip-hop tracks, making it one of the most sampled records ever that's informally known as 'the Amen break.'

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

Explore what it's like inside a patient isolation unit, used in situations such as treating a patient or suspected patient with Ebola.

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.