How government cuts are slowing research.

Chatbots posing as therapists may encourage users to commit harmful acts, the nation’s largest psychological organization warned federal regulators.

The TV celebrity and Trump nominee has pledged to divest from most of his financial interests. But they touch nearly every corner of health care, from insurance to blood pressure cuffs and vitamins, leading experts and lawmakers to doubt he could make impartial decisions.

The frozen supplemental drinks have been linked to an outbreak of listeria that has killed at least 11 people and hospitalized 37.

When a gunman killed two of her students, Ivy Schamis was the only adult in the room. Her journey through guilt and healing sheds light on the impossible role of American teachers.

Elon Musk has drawn inspiration from his 2022 takeover of X, then known as Twitter, as he works to overhaul the federal government.

Confusion has ensued about the future of programs and research supporting people with disabilities as a result of President Trump’s executive order.

A federal judge in Massachusetts indicated she would move quickly to consider a more lasting injunction after hearing a laundry list of potential adverse effects of the Trump administration move to cut billions in funding.

But the study, whose publication was delayed by a pause in public communications by the agency, leaves key questions unanswered.

The Trump administration appears to be flouting a judge’s order pausing the dismantling of U.S.A.I.D.

Declarations of love, snoring, exercising and other boundary violations can really derail a therapeutic relationship.

The new guidance follows President Trump’s demand that the Health and Human Services Department align with his executive order barring transgender athletes from women’s sports.

Max’s unusually accurate medical drama, starring Noah Wyle as a beleaguered E.R. physician, has become the talk of real-life hospital breakrooms.

The condition, which entails pneumonia in both lungs, is potentially grave, according to health experts.

A core group of so-called disease detectives, who track outbreaks, was apparently spared. But other young researchers are out of jobs.

Oxygen is vital to many medical procedures. But a safe, affordable supply is severely lacking around the world, according to a new report.

By watching the brain process information, she discovered that a specific region plays a key role in spatial navigation — and that it can be strengthened like a muscle.

In the Netherlands, doctors and dementia patients must negotiate a fine line: Assisted death for those without capacity is legal, but doctors won’t do it.

A drug called buprenorphine may be the best tool doctors have to fight the fentanyl crisis. Why hasn’t it been more widely adopted?

Heart disease is more common in people over 65, but treatments are better than ever. That can complicate decision-making for older heart patients.

Heart disease is more common in people over 65, but treatments are better than ever. That can complicate decision-making for older heart patients.

This month, Vishvaa Rajakumar won the Memory League World Championship, which tests memorization skills. He shared some of his techniques with The Times.

“Vaccines should be treated with nuance, recognizing differences between seasonal vaccines and childhood immunizations,” Dr. Ralph L. Abraham, the state’s surgeon general, wrote in a memo.

It is the first ruling in a case challenging “shield laws” intended to protect doctors in states that support abortion rights who send abortion pills to states with bans.

Obsessing over the past is taking over my life.

As of Tuesday, 22 children and two adults had been infected, all of whom were unvaccinated, local officials said.

Health experts see his retreat from international cooperation as disrupting the safe-keepers of one of the world’s deadliest pathogens.

The federal order temporarily halts the Trump administration’s plans to slash $4 billion in overhead costs for research at universities and medical centers into diseases like cancer.

Timothy Jay, a scholar in the science of swearing, has a few choice words about why we curse and how to cut back (if you want to).

A coalition of 22 attorneys general sued the federal government Monday, claiming that the $4 billion in cuts would “grind to a halt” studies on cancer, heart disease and other conditions.

At cardiology conferences and diabetes meetings, doctors can’t help noticing that thin seems to be very in.

The recall, which was initiated on Jan. 7 and upgraded on Wednesday, includes several Dunkin’ products, federal safety officials said.

She left the agency saying politics had slowed the approval of the morning-after pill for over-the-counter use. Her resignation drew national attention.

Shock and grief rippled through the health community as lifelines for care were abruptly severed.

The collapse of U.S.A.I.D. at the hands of President Trump and Elon Musk is already leaving gaping holes in vital health care and other services that millions of Africans rely on for their survival.

The order affects roughly 80 markets in New York City and in several nearby counties. New Jersey is also asking its live markets to voluntarily clean, disinfect and temporarily close.

The data, which appeared fleetingly online on Wednesday, confirmed transmission in two households. Scientists called on the agency to release the full report.

The stop-work order on U.S.A.I.D.-funded research has left thousands of people with experimental drugs and devices in their bodies, with no access to monitoring or care.

He marshaled epidemiological research to press for changes in drug policy, alternatives to prison and needle-exchange programs to slow the spread of AIDS.

A new version of the virus is widespread in wild birds but had not previously been detected in cows.

The study may suggest that other researchers should be less optimistic about the prospects for treating a range of other conditions with newer weight-loss drugs.

The fallout from the F.D.A.’s rejection of MDMA-assisted treatment for PTSD worries researchers and experts who fear other psychedelic drugs in the pipeline could be jeopardized.

We asked experts if alcohol can cause anxiety to spike and what you can do about it.

The research offers hope to tens of thousands of patients with kidney failure who are on a long waiting list for an organ transplant.

Robert F. Kennedy Jr. also disclosed that he had reached at least one settlement agreement with a company or individual that has accused him of “misconduct or inappropriate behavior.”

Lifesaving treatment and prevention programs for tuberculosis, malaria, H.I.V. and other diseases cannot access funds to continue work.

Doctors warn about their physical side effects, but they can also have unexpected effects on intimacy.

The agency warned that the products, made by Cal Yee Farm, could have potentially serious or even deadly consequences because the packages were mislabeled. No illnesses have been reported.

Fake nurseries and town squares seem to comfort patients. But some experts wonder whether they are patronizing, even infantilizing.

Vague federal directives have led to frantic action, and perhaps overreaction, before a Friday deadline.

The drug, Journavx by Vertex Pharmaceuticals, blocks pain signals to the brain, making it nonaddictive.

She transformed nursing by making it an area of clinical practice and research and recasting nurses as colleagues of doctors, not assistants.

Robert F. Kennedy Jr., President Trump’s nominee for health secretary, doesn’t just hold fringe views on vaccines. We fact-checked five recent statements.

In testimony to the Senate Finance Committee, Mr. Kennedy seemed to confuse the two government programs that cover more than 150 million Americans.

PEPFAR’s computer systems also are being taken offline, a sign that the program may not return, as Republican critics had hoped.

In a harsh letter to lawmakers considering Robert F. Kennedy Jr.’s nomination for health secretary, Ms. Kennedy called her cousin unfit for the job and a “predator” who led family members to addiction.

One doctor is showing nurses, teachers and parents how to spot eye problems, many of which can be easily treated. Surgery, and even just glasses, can be life-changing, and keep kids in school.

A bird-flu pandemic is far from inevitable. But health experts are closely monitoring an outbreak that could quickly escalate among people.

She opened clinics, worked to educate women about their reproductive health, and promoted an abortion technique she felt was safe enough for laypeople.

For my whole life, I’ve been a hard-core sweets junkie. Could a spa help me quit in a week?

Inside the $32 billion industry transforming marijuana, its consumption and beliefs about its ability to heal.

His own experience assisting his terminally ill wife in ending her life set him on a path to founding the Hemlock Society and writing a best-selling guide.

Here’s how to make the most of what you’ve learned.

The research could further complicate the polarized politics of abortion because the drug in the study is the key ingredient in a pill used for emergency contraception.

A group of 15 states have reached a tentative new deal that would require them to set aside hundreds of millions of dollars from the settlement in a legal-defense fund for the family.

A large study found that men lost seven years of life expectancy and women lost nine years, compared with counterparts without the disorder.

Robert F. Kennedy Jr., President Trump’s nominee to be health secretary, would have oversight power over the vaccine’s maker, Merck, if confirmed.

Vivek Ramaswamy, Elon Musk’s partner in an effort to cut government costs, could make decisions that ultimately make him and his investors richer.

A law that coaxed companies to lower the price of drugs came with a little-known consequence: smaller discounts for low-income health clinics.

Public health experts say U.S. withdrawal from the W.H.O. would undermine the nation’s standing as a global health leader and make it harder to fight the next pandemic.

Well’s new Ask the Therapist columnist, Lori Gottlieb, helps a reader who is sick of being her mother’s dumping ground.

A private business has helped supercharge a controversial federal drug program. Patients and insurers have been left with big bills.

Prisons across the country are struggling to find nursing home placements for sick prisoners after granting them parole. In New York, some inmates are suing for release.

It doesn’t happen often. But when it does, some residents risk losing everything.

The positions of Robert F. Kennedy Jr. on vaccines and drug companies are well known. His approach to addiction has been far less scrutinized.

Robert F. Kennedy Jr. petitioned the F.D.A. to revoke authorization of the shots at a time when they were in high demand and considered life-saving.

The government is expected to pay lower prices for Ozempic and Wegovy starting in 2027. The Trump administration will decide whether to expand coverage for millions of Americans.

But high medical costs contributed to results that disappointed Wall Street, and the company’s stock fell on the news that it had made less than analysts expected.

Although long considered a disease of aging, certain cancers are turning up more often in younger women, according to a new report.

By day, he helped run an autism center he opened in a suburb of Paris. In the evening, he delighted audiences as a clown named Buffo. In between, he wrote novels.

Consumer and food safety groups have long urged the agency to revoke the use of this dye and others. The F.D.A. says studies have shown that it causes cancer in rats, but not in humans.

Digital mental health platforms were supposed to expand access for the neediest patients. Researchers say that hasn’t happened.

The second of two analyses intended to shape the upcoming U.S. Dietary Guidelines questions alcohol’s overall benefits.

Azara Ballet in Florida is a place where performers can just be themselves.

Medical historians say that the phrase “Make America Healthy Again” obscures a past during which this country’s people ate, smoked and drank things that mostly left them unwell.

As many as two billion people suffer from it — including me. Can science finally bring us relief?

A rising star among New Age motivational speakers, he was brought down by a disaster during one of his retreats in Arizona, where three people died in a sweat lodge.

Scientists have identified a gene that causes production of a substance in some citrus that interferes with many medications.

When he was 25, he learned that he had multiple sclerosis. He coped with the disease throughout a long career at several networks, recalled in a best-selling memoir.

When cats bite or scratch, they’re trying to tell you something. Ms. Wilbourn, a cat therapist, was a pioneer in the art of listening to them.

The results of a new federal analysis were drawn from studies conducted in other countries, where drinking water contains more fluoride than in the United States.

A new study assesses the effects of sugar-laden beverages on global health, with higher rates of consumption found in Latin America and parts of Africa.

Variant Bio, a small biotech company based in Seattle, is using genetic information from Indigenous people to develop drugs for obesity and diabetes.

Washington State’s program is the first, but other states are expected to try allowing pharmacists to prescribe the pills to counter growing efforts to curtail abortion access.

While cases are climbing in China, the situation is very different from what it was when Covid-19 emerged five years ago, medical experts say. HMPV is common and decades old.

Venomous snakes bite millions of people worldwide each year, killing at least 120,000. Many of them are poor people in rural areas of Africa without easy access to treatment.

Some older Americans have come to depend on virtual consultations with doctors, covered by Medicare. To keep that option in the future, Congress will have to act quickly.

The woman, a field geologist, was healthy and active, yet she would pass out at inopportune moments.

Dr. Vivek Murthy’s report cites studies linking alcoholic beverages to at least seven malignancies, including breast cancer. But to add warning labels, Congress would have to act.

The administration is committing an additional $306 million toward battling the virus, and will distribute the money before President-elect Donald J. Trump takes office.

We asked researchers, couples counselors and sex therapists for some simple strategies to strengthen your romantic relationship in 2025.

Passengers on several of the carrier’s flights said the biting pests were on seats, blankets and in overhead bins and that the airline did not take action.

Officials in other countries are warning about the health hazards of alcohol in any amount. Americans are still told that moderate drinking is safe. What gives?

In his decades as a former president, he and his wife, Rosalynn Carter, helped bring lifesaving treatments and sanitation to poor people around the world.

Adopting even just one of these easy strategies can make a meaningful difference in how you feel and function.

These tips can help you fortify your friendships and romantic partnerships in the year ahead.

Early intervention tries to rein in psychotic disorders before they can ruin young lives. For Kevin Lopez, everything is on the line.

Officials have discovered the virus in 645 dairy herds, more than in any other state so far.

Dr. Mark Hyman, a “functional medicine” proponent and longtime friend of Robert F. Kennedy Jr., is finding powerful allies in his bid to treat disease with blood tests and supplements.

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there is no sign that mutations are widespread in nature.

Experts share how shifting from self-focused goals to thinking about others can have a positive impact on the year ahead.

The astronauts on the I.S.S. — including two who were scheduled to return months ago — held a zero-gravity cookie-decorating contest and built a reindeer from storage bags.

It may be a longstanding practice, but critics say routine weight measurements are driving some patients away from care.

Attempts to restrict pharmaceutical advertisements have failed many times over the years, often on First Amendment grounds.

Our reporter went to Congo, where the mpox epidemic has reached the teeming capital, infecting children and their mothers, who sell sex to survive.

More than half of the cats at the sanctuary in Shelton, Wash., died of the virus over the past several weeks.

The self-help phenom’s new book is all about letting others do as they may. Can she follow her own advice?

There is no one factor that causes autism — or explains its growing prevalence. Researchers are seeking explanations for the surge. Here are some possibilities.

Hallucinations, a bane of popular A.I. programs, turn out to be a boon for venturesome scientists eager to push back the frontiers of human knowledge.

The Food and Drug Administration released final rules on labeling foods as “healthy,” tightening limits for sugar, sodium and saturated fat.

A mutant gene is coming to steal Linde Jacobs’s mind. Can she find a way to stop it?

Democrats highlight a casualty of the spending fight: funding to combat pediatric cancer.

Shuttered drugstores pose a particular threat to older adults, who take more medications than younger people and often rely on pharmacies for advice.

The U.S. provides nearly half of the aid for global health, including childhood vaccination, H.I.V. treatment and disease surveillance.

Unable to find effective treatments at home, veterans with brain-injury symptoms are going abroad for psychedelics like ibogaine that are illegal in the U.S.

Statements by Robert F. Kennedy Jr. and Elon Musk tap into a dispute over whether lifestyle changes or drugs are a better way to treat obesity.

The agency recommended that the maker of Librela update its label to reflect the possibility of more serious adverse reactions.

A group of Democratic lawmakers accused Georgia Pathways to Coverage, the only Medicaid work requirement program in the country, of spending little of its funding on health benefits.

Problems with getting vaccines to families have left many children unvaccinated and in danger of contracting the virus.

President-elect Donald Trump’s choice for health secretary has suggested that the polio vaccine cost more lives than it saved and that the vaccine did not wipe out the disease in the U.S.

The patient, Towana Looney, was in better health than previous recipients, and her case could signal progress toward solving the organ-supply shortage.

More adolescents than ever are watching it. What’s needed, researchers say, are frank conversations and “porn literacy.”

A 2022 legal settlement established requirements to protect the health of minors detained at segments of the southern border. It ends nine days after Donald Trump takes office.

A lawyer working with Robert F. Kennedy Jr. has asked the F.D.A. to withdraw approval of the current shot because it hasn’t been tested against a placebo. Scientists say such a test would be unethical.

“Efforts to undermine public confidence in proven cures are not just uninformed — they’re dangerous,” said the Republican leader, who is a polio survivor.

Most Americans, including doctors, have no memory of the devastating diseases that routinely threatened children until the 1960s.

Vaccines today are more efficient and contain far fewer stimulants to the immune system than some used decades ago.

A former senior partner will also plead guilty to obstruction of justice after destroying company documents.

Aaron Siri, who specializes in vaccine lawsuits, has been at Robert F. Kennedy Jr.’s side reviewing candidates for top jobs at the Department of Health and Human Services.

She was among hundreds of women who said they were coerced into sterilization at a California hospital in the 1970s. The lawsuit led to state and national reforms.

A growing cottage industry is dedicated to the theory that mind-altering drugs can improve business leadership.

Many say they are relieved to finally have an explanation after decades of struggle.

New federal rules call for testing unpasteurized milk from dairy processors and for farm owners to provide details that would help officials identify and track cases more easily.

Starting at 30, women can collect their own vaginal samples for HPV testing at a doctor’s office.

Mr. Thompson managed a division that employs about 140,000 people and offers insurance plans to employers and individuals.

Elevating Mr. Kennedy to secretary of H.H.S. “would put the public’s health in jeopardy,” more than 75 laureates wrote.

New technology alerts schools when students type words related to suicide. But do the timely interventions balance out the false alarms?

And how to lessen the blow.

“We’re putting another burden on the elderly that we don’t have to,” one researcher said.

Acadia Healthcare falsifies records at its methadone clinics and enrolls patients who aren’t addicted to opioids, a Times investigation found.

In a remote Congolese town, a medical mystery led to the discovery of alarming changes in the mpox virus and, eventually, to a global health emergency.

It’s not just the elderly. More than three-quarters of heat-related deaths in Mexico occurred among people younger than 35, researchers reported.

Anthem Blue Cross Blue Shield officials had planned to roll out the changes nationwide but said they were misunderstood.

The company has been accused of using algorithms to deny treatments and refusing coverage of nursing care to stroke patients.

On America’s large dairy farms, milking is a vast operation, and the potential for disease transmission is worrying, health experts say.

Assessing the court’s ultimate direction was complicated by the silence of one justice in the conservative majority, Neil M. Gorsuch, the author of a key case on employment discrimination. The court’s decision is expected by June.

Many patients are confused about what their surgeons are planning. Here’s how to get the details.

Federal health agencies closed their investigations into the bacterial outbreak that sickened 104 people and was linked to onions on the fast-food chain’s signature Quarter Pounders.

Patients often are in the dark about which organs remain and which were removed — particularly the ovaries, which profoundly influence lifelong health.

Researchers are trying to understand why resistant pathogens are so prevalent in the war-torn nations of the Middle East.

The health secretary pick and his organization have worked around the world to undermine longstanding policies on measles, AIDS and more.

The agency long benefited from broad bipartisan support. But Republican criticism has intensified, and new choices for top health posts hope to upend the organization.

Working inside the government and out, he lobbied to improve the lives of people with H.I.V. and AIDS, particularly those who belonged to minority groups.

At least 68 people have fallen ill in the outbreak believed to be linked to cucumbers sold in the United States and Canada, the Centers for Disease Control and Prevention said.

The attacks came out of nowhere and brought life to a miserable standstill. And she had the scars to prove it.

But over the years, the former congressman’s views have often aligned with those of his potential boss, Robert F. Kennedy Jr. — particularly on vaccine safety.

A Biden administration rule that imposed minimum rules on nursing levels may not survive, even though many homes lack enough workers to maintain residents’ care.

As the director of the National Institutes of Health, Dr. Jay Bhattacharya would oversee the world’s premier medical research agency, with a $48 billion budget and 27 separate institutes and centers.

President-elect Donald J. Trump’s selections to run the nation’s health agencies are alarming infectious disease experts.

Robert F. Kennedy Jr. and other candidates for top health posts are at odds with the drug industry, setting the stage for tense battles over regulatory changes.

Talking about your advance care directive with your loved ones will make life — and death — easier later on.

The proposed rule could give millions of Americans access to the new drugs; it will also put pressure on the incoming Trump administration.

And it’s on the rise among middle-aged drinkers.

In selecting a doctor who is skeptical of vaccine safety, the president-elect is emphasizing his commitment to reforming the role of federal health agencies in radical ways.

Two couples in California discovered they were raising each other’s genetic children. Should they switch their girls?

Many nations hope to reduce the half a billion tons of plastic made each year. But pushback from plastic and oil producers, and Donald Trump’s election, could scuttle an agreement.

The picks to oversee public health have all pushed back against Covid policies or supported ideas that are outside the medical mainstream.

Medical care can be wearying and time-consuming, especially for seniors. Researchers are beginning to quantify the burdens.

Officials have linked 11 listeria cases since October 2021 to items from Yu Shang Food, which is recalling more than 72,000 pounds of products.

President-elect Donald J. Trump is set to nominate Robert F. Kennedy Jr. to lead the Health and Human Services Department, where he would have limited power over drugs.

How to avoid a contentious family holiday after the big election.

Experts are puzzling over which interventions are saving lives. The evolving illicit supply itself may hold important clues.

The U.S. Food and Drug Administration issued a warning letter, but not a recall, after microorganisms were found in water samples and finished toothpaste products.

Her fight for disability rights included founding a group called Not Dead Yet, which protested the work of Dr. Jack Kevorkian and others.

As revolutionary new weight-loss drugs turn consumers off ultraprocessed foods, the industry is on the hunt for new products.

If he is confirmed as H.H.S. secretary, the longtime vaccine critic would be in a position to change the government’s immunization recommendations and delay the development of new vaccines.

As the glaciers of South America retreat, the supply of freshwater is dwindling and its quality is getting worse.

Trends in child health are in fact worrisome, and scientists welcome a renewed focus on foods and environmental toxins. But vaccines and fluoride are not the cause.

A small study found ChatGPT outdid human physicians when assessing medical case histories, even when those doctors were using a chatbot.

One person has died and nearly 40 people have been sickened in an E. coli outbreak tied to multiple brands of recalled organic carrots sold by Grimmway Farms, officials said.

The unidentified patient had recently returned from Africa, where the virus has caused a deadly epidemic, health officials said.

With the nomination of Robert F. Kennedy Jr. as health secretary, a formerly fringe opinion suddenly gets wide attention.

President-elect Donald J. Trump’s pick for health secretary opposes fluoride in water, promotes unproven Covid therapies and has threatened to prosecute medical journals.

Processed foods are in the cross hairs of Robert F. Kennedy Jr., but battling major companies could collide with President-elect Donald J. Trump’s corporate-friendly goals.

The agency’s top medical official was responding to rumors that Suni Williams had lost an unusual amount of weight during an extended stay in orbit.

A sharp partisan divide remains over how involved researchers should be in policy decisions.

New research suggests symptoms of the disorder may be less severe in those with a demanding schedule.