The states consider it a move to force the F.D.A. to review and acknowledge extensive research showing the pill’s safety.

As the United States cuts budgets and restricts immigration, China and Europe are offering researchers money and stability.

The spending proposal terminates support of health programs that, according to the proposal, “do not make Americans safer.”

At issue is how to interpret a federal law barring hospitals from turning away poor or uninsured patients.

A growing number of older women are seeking treatment for eating disorders. Many have struggled without help for decades.

Coming June 5: A six-part podcast exploring the origins of medical treatment for transgender young people, and how the care got pulled into a political fight that could end it in the United States.

More older people are using cannabis products regularly, but research suggests their cannabis-related health problems are also on the rise.

Paula Ritchie wasn’t dying, but under Canada’s new rules, she qualified for a medically assisted death. Was that kindness or cruelty?

A clinical trial found that women could switch drugs without waiting for scans showing cancer progression, which improved their quality of life.

The outbreak, which was traced to a grower in Florida, has spread to 18 states, according to the C.D.C. Several distributors and stores, including Target, have recalled products containing cucumbers.

He became an advocate of a woman’s right to choose and once said, “It is always tragic when politics takes the most vulnerable hostage — in this case, women.”

With the welcome mat withdrawn for promising researchers from around the world, America is at risk of losing its longstanding pre-eminence in the sciences.

Health Secretary Robert F. Kennedy Jr. has repeatedly questioned the safety of mRNA technology, which is used in the company’s shot.

He worked with a team at the University of Utah to create a mechanical heart. It was later used in patients awaiting an organ transplant.

Cultivating self-compassion can actually help you cope better with life’s struggles.

The judge ordered ICE to release Kseniia Petrova, a researcher at Harvard Medical School, who also faces criminal charges.

Health Secretary Robert F. Kennedy Jr. upended decades of standard protocol in announcing that the vaccine would be dropped from the immunization schedule for healthy children.

New research involving nearly 200,000 mothers found that one in 12 rated her mental health as fair or poor.

The administration is not only allowing more greenhouse gases. It is undermining the nation’s ability to understand and respond to a hotter planet.

At the T.H. Chan School of Public Health, which relies heavily on federal support, a crisis response is underway and a reshaping of the institution feels inevitable.

The test may make it easier to identify whether people with memory and thinking problems have Alzheimer’s or not.

More than half of the National Science Foundation grants terminated since April fund programs that would help students train in science, engineering and math.

Robert F. Kennedy Jr. wants to return the nation to a time when he believes Americans were healthier. Not so fast, many researchers say.

The report echoes many of Health Secretary Robert F. Kennedy Jr.’s talking points on ultraprocessed foods and vaccines, but with some notable omissions.

Contrast-enhanced mammography identified three times as many tumors as ultrasound scans. But it is not widely used for screening in the United States.

Joel said he had normal pressure hydrocephalus, which has led to “problems with hearing, vision and balance.”

Though much remains uncertain, experts predicted many people will face new barriers to vaccination.

The consultant had deleted records involving McKinsey’s role in pushing OxyContin sales and driving the opioid crisis.

The report is already receiving pushback from some Republicans and the agriculture industry over fears about the health secretary’s longtime crusade against agricultural chemicals.

They contain increasing amounts of sugar, fat and sodium and decreasing amounts of protein and fiber.

An inquiry accused Nestlé and French officials of hiding the company’s practice of filtering Perrier water it labels “natural.” The head of Nestlé has suggested that human activity is making pure water scarcer.

Agency leaders said there was evidence to justify approval only for older people and those with medical conditions. Many others may not be able to get the shots.

Here’s how to protect your skin and the environment this summer.

Researchers studied data from a million people and found evidence that a height gene shared by both sexes is amplified in men.

The cancer has metastasized to the bone, according to a statement from Mr. Biden’s personal office.

The voluntary recall was prompted after routine testing. It is the second such recall recently of baby food over possible lead contamination.

The procedure could be life-changing for some people with debilitating conditions.

The agency narrowed who can get the shot and added new study requirements that could cost the company tens of millions.

Trump aides have discussed requiring insurers to cover the procedure, though one leading medical group says it has been shut out of the process.

The U.S. is slashing funding for scientific research, after decades of deep investment. Here’s some of what those taxpayer dollars created.

Disturbing thoughts and social fixations are among the many manifestations of obsessive-compulsive disorder.

With new testing requirements, it’s not even clear how new Covid or flu shots can be made available this fall.

A government lawyer told a federal judge on Wednesday that the intention is to deport Kseniia Petrova, a Harvard researcher, to Russia.

The progress comes as the Trump administration is proposing to cut funding for many programs believed to have contributed to the improvement.

Experts predicted that artificial intelligence would steal radiology jobs. But at the Mayo Clinic, the technology has been more friend than foe.

Some doctors say they are surprised the condition was found at all in the former president, given his age.

A new clinic, opened by a pulmonologist who lost his home in the Palisades blaze, is addressing the health issues developing among people exposed to the fires.

The president has long complained that the United States pays more for medicines than other wealthy countries. But he offered no clear legal authority to mandate lower prices.

The president announced an executive order aimed at lowering U.S. drug costs, revisiting an idea that was blocked in court during his first term.

CVS Caremark decided to stop offering Zepbound in favor of Wegovy for weight loss. It’s the latest example of limits imposed by insurance that disrupt treatments for patients.

They are finding that people who have been assaulted, or who have serious conditions like diabetes or a high-risk pregnancy, are skipping or delaying care.

The C.D.C. delivered $750 million annually to state and local health departments for emergency work. The program was eliminated in the Trump administration’s budget blueprint.

Dr. David Slotwiner de-stresses from a busy week at his Queens hospital by escaping to a New Jersey farm to herd sheep with his Border collies.

A highly contagious liver infection is surging among groups who are not typically at risk. At least seven people have died.

The research team studying how to improve I.V.F. was a casualty of cutbacks at federal health agencies.

As China and the United States trade charges of a lab leak, researchers contend in a new paper that the Covid pandemic got its start, like a previous one, in the wildlife trade.

We asked experts about how the technology works, its safety and its potential in medicine.

The director of the National Institutes of Health previously floated — then walked back — the idea of an autism registry, alarming researchers and parents.

Generally, researchers will no longer be allowed to direct federal funds to international collaborators.

A founder of neonatology, he helped revolutionize the care of preterm and critically ill newborns. “We were able to keep babies alive that would not have survived,” he said.

The continent’s leaders are hoping to benefit as the Trump administration cuts support for research and threatens universities such as Harvard and Columbia with the freezing of federal funds.

The request echoes the position the Biden administration took in the case in January, surprising some observers.

Nearly half of the N.I.H. grants canceled through early May — together worth more than $800 million — addressed the health of sexual and gender minority groups, The Times found.

After taking part in a landmark case against the manufacturers of the synthetic hormone DES, she represented many other victims of harmful drugs and devices.

Clinicians at the Department of Veterans Affairs say the president’s return-to-office order is forcing many of them to work from makeshift spaces where it is difficult to guarantee patient privacy.

One expert said the consequences would be “catastrophic” if Congress enacts the White House agenda of sweeping budget cuts.

A new training program teaches aides to stop baby talk and address older people as adults.

Kennedy has warned of an epidemic of chronic disease, but the budget blueprint would close the C.D.C. center focused on prevention.

She successfully challenged her involuntary commitment to Bellevue Hospital in 1987, setting a precedent for homeless people that remains relevant today.

The Justice Department accused large insurers of colluding with national brokers to steer older people and those with disabilities toward coverage that might not offer the best medical care.

In an interview with Dr. Phil, the health secretary offered false information about vaccine oversight and revealed a lack of basic understanding of new drug approvals.

What makes humans conscious? Scientists disagree, strongly, as one group of peacemakers discovered the hard way.

New data collected from more than 200,000 people across the world shows that young people aren’t as happy as they used to be.

After 20 percent of the agency’s work force was cut, federal health officials have decided to bring back some experts and review firings to fill gaps in critical roles.

Animal testing remains a fundamental part of biomedical research. But as funding evaporates, mice, rats and even monkeys may be euthanized.

We explain the administration’s cuts to research.

The New England Journal of Medicine received a letter suggesting that it was biased and compromised by external pressure. Other journals have also received the letter.

For a limited group of cancer patients who have solid tumors in the stomach, rectum, esophagus and other organs, an immunotherapy trial offered stunning results.

Medicines and chemicals are huge exports for European Union countries. That makes the sector a weak spot as trade tensions drag on.

A $56 million grant to train emergency responders and supply them with the overdose reversal spray, plus other programs that address addiction, could be eliminated.

Studies in neuroscience with applications to humans offer clues about what makes us start eating, and when we stop.

An idealistic ophthalmologist, he came up with an ingenious way to treat blindness in far-flung places: by outfitting an airplane with an operating room.

The agency targeted grants focused on diversity, equity and inclusion, as well as research on misinformation.

Investigators had been informed that funding for the decades-long research effort would be slashed. Officials said on Thursday evening that grants would be restored.

Acadia Healthcare’s chief executive was awarded a $1.8 million bonus to respond to “unprecedented governmental inquiries” into allegations of holding psychiatric patients against their will.

The few domestic companies that still make protective gear for health care workers have clamored for federal intervention. But they worry President Trump’s trade war with China won’t help.

Despite a 1 percent increase in 2024, U.S. birthrates remained in a historic slump, a trend that worries demographers and cultural critics.

Growing case numbers suggest that national total will surpass that seen during the last large outbreak in 2019.

Social media became a place of both solace and torment. How much was mine to share?

The justices heard arguments in a constitutional challenge to a task force that decides what treatments are covered at no cost.

Surges in Mennonite communities near the U.S. border may complicate containment efforts, experts say.

People with dementia often forget even close family members as the disease advances. “It can throw people into an existential crisis,” one expert said.

People in the community called the remarks dehumanizing and warned they could perpetuate harmful stigma.

The White House has thrown its weight behind the lab leak theory, an idea that has divided intelligence agencies.

An interim U.S. attorney is demanding information about the selection of research articles and the role of N.I.H. Experts worry this will have a chilling effect on publications.

An internal memo proposes carving out $40 billion from federal health agencies while eliminating dozens of programs. Congress has ultimate appropriation authority.

Eli Lilly reported promising results from a study of its experimental oral drug that could rival popular injections to treat obesity and diabetes.

Eli Lilly said clinical results of its GLP-1 in pill form showed safety and efficacy data similar to blockbuster injectable drugs.

With diagnoses at a record high, some experts have begun to question our assumptions about the condition — and how to treat it.

The health secretary said he would prioritize studies into environmental causes while harshly discounting other factors scientists say are likely contributing to rising rates of the condition.

President Trump directed his administration to help states import drugs from Canada. But a proposal to alter a Medicare program to reduce costs could wind up raising prices.

In the first clinical trial of its kind, an A.I. chatbot eased mental health symptoms among participants. The technology may someday help solve the provider shortage.

Citing a national security statute, the administration has begun a process to investigate the impact of imported semiconductors and pharmaceuticals.

Users needing emergency care or hospitalization were more likely to later develop dementia, researchers reported. That does not prove cannabis was the cause.

Towana Looney lived with the kidney longer than any other transplant patient had tolerated an organ from a genetically modified animal.

The health secretary has chipped away at the idea that immunizing children against measles and other diseases is a public health good.

President Trump’s immigration crackdown ensnared Kseniia Petrova, a scientist who fled Russia after protesting its invasion of Ukraine. She fears arrest if she is deported there.

In her new book, “The Ideological Brain,” the neuroscientist Leor Zmigrod outlines what makes some people prone to rigid thinking.

The nation’s health secretary addressed agency employees, asking them to shed any corporate influence. But he did not address the mass layoffs that have gutted oversight of tobacco and vapes, food safety and drug reviews.

The veto by Mayor Daniella Levine Cava, a Democrat, pushed back on a growing campaign against the mineral, which has been used for decades to prevent cavities.

Medicare spending on “skin substitutes” made of dried placenta has soared as doctors pocket lucrative discounts from sellers.

From the “chairs” to the hallway medicine, the show’s depiction of an emergency medicine system that is beyond capacity rings true for medical experts.

The health secretary seemed stoic — maybe nervous, even — at the start of his first major trip. But on a hike with Navajo Nation leaders, he was finally in his element.

Scientists achieved “a milestone” by charting the activity and structure of 200,000 cells in a mouse brain and their 523 million connections.

The health secretary’s appearance at a tribal self-governance conference brought collegial discussions and a bit of friction.

Mother-to-child H.I.V. transmission takes an enormous toll in low-income countries. The Trump administration has laid off the officials who worked to solve the problem.

The health secretary’s announcement came on the first day of a tour through the Southwest to showcase nutrition legislation and other priorities.

Two significant programs that invested in research on diabetes, dementia, obesity and kidney disease have ended since the start of the Trump administration.

The health secretary has faced harsh criticism for his handling of the outbreak, embrace of alternative treatments and tepid endorsement of vaccination.

Cargill Kitchen Solutions recalled more than 210,000 pounds of products under its Egg Beaters and Bob Evans labels.

The United States can no longer keep tabs on drug-resistant gonorrhea, among other infections, scientists said.

Recent Trump administration actions are setting the stage for a measles resurgence, experts fear.

Administration officials reversed a decision made during the Biden presidency that would have given millions of people access to weight-loss drugs paid for Medicare and Medicaid.

Miller Gardner, the 14-year-old son of the retired Yankees player Brett Gardner, died from carbon monoxide poisoning while on vacation in Costa Rica. Here’s why the gas is so dangerous.

Trump cutbacks were supposedly aimed at administrators. But scientists in food and drug-testing labs and policy experts who advance generic drug approvals were also dismissed.

She used her wealth strategically to expand opportunities for women, underwriting the development of the pill and supporting the suffrage movement.

In addition to reductions at agency personnel, federal regulators are demanding $2.9 billion in contract cancellations, The Times has learned.

The justices handed a win, for now, to the Food and Drug Administration in its rejection of applications from makers of flavored liquids used in e-cigarettes.

A new survey found that 11 percent of Americans said they could not pay for medication and medical treatments.

Health Secretary Robert F. Kennedy Jr. suggests that laying off thousands of federal workers would tame a massive budget. But nearly all of the agency’s money goes to hospitals, doctors and nursing homes.

The health secretary said the drugs have “damaged” children, but doctors say prescription stimulants like Ritalin and Adderall help millions of people.

Five years after the pandemic began, interest in the anti-parasitic drug is rising again as right-wing influencers promote it — and spread misinformation about it.

The Eli Lilly drug caused a major drop in the blood levels of Lp(a), but further research is needed to show that it will prevent heart attacks and strokes.

The best-selling author “got a little emotional” while talking with The Times about tuberculosis. Listen to the conversation.

As the Trump administration threatens to strip accrediting bodies of their power, many are scrambling to purge diversity requirements.

As the Trump administration threatens to strip accrediting bodies of their power, many are scrambling to purge diversity requirements.

Your average daily heart rate is a useful metric; so is your daily step count. Combining the two might be even better.

Dr. Peter Marks, a veteran of the agency, wrote that undermining confidence in vaccines is irresponsible and a danger to public health.

After the health secretary promoted vitamin A as a cure, parents in West Texas began giving their children high doses, sometimes to prevent infection.

State health officials worry that declining vaccination rates have left many communities vulnerable nationwide.

The showdown catapults the interstate abortion wars to a new level.

States have been told that they can no longer use grants that were funding infectious disease management and addiction services.

A 281-page spreadsheet obtained by The Times lists the Trump administration’s plans for thousands of foreign aid programs.

Dr. Jay Bhattacharya will direct the N.I.H., and Dr. Martin A. Makary will lead the F.D.A. Both have reputations as medical contrarians.

The agency OK’d an artificial vessel to restore blood flow in patients, even though its own scientists flagged questionable study results and potentially fatal ruptures of the product.

Currently the agency’s acting director, Dr. Monarez would be the first nonphysician to head the agency in more than 50 years.

Senior scientists at the National Institutes of Health fear that research on conditions like obesity, heart disease and cancer will be undermined by President Trump’s policies.

The number of cases will increase, but the rates seem to be declining with every birth cohort that reaches advanced ages, researchers said.

A chaotic restructuring order threatens to degrade services for veterans of wars in Vietnam, Iraq and Afghanistan.

Children’s Health Defense, founded by the health secretary, had published online a vaccine-safety page that looked like the agency’s but that suggested links to autism.

Married to Gov. Michael Dukakis of Massachusetts, she became a proponent of electroshock therapy after unsuccessful treatments for alcoholism and depression.

His studies showed that a B vitamin deficiency could cause hardened arteries. It took the medical profession more than a decade to catch up.

The author of numerous studies, he urged patients to question their physicians and expressed concern about cancer treatment for older adults.

A law passed in 2011 required food companies to track food in the event of contamination and a recall. The administration delayed the move, set to take effect next year, for 30 months.

“Cognitive shuffling” can calm a busy brain.

The move comes after a series of cuts to prevention and treatment efforts worldwide. Some functions might be moved to another agency, officials said.

The Trump administration halted some food testing and shut down a committee studying bacteria in infant formula. Earlier funding cutbacks under the Biden administration now threaten state labs and inspectors.

The health secretary has suggested allowing the virus to spread, so as to identify birds that may be immune. Such an experiment would be disastrous, scientists say.

Dozens of medical and scientific studies are ending or at risk of ending, leaving researchers scrambling to find alternative funding.

Veterans who wish to change their gender “can do so on their own dime,” the V.A. secretary said.

Laura Delano walked away from the treatments that defined her teens and 20s. Now, she’s hoping to create a road map for others to follow.

As the coronavirus spread, researchers worldwide scrambled to find ways to keep people safe. Some efforts were misguided. Others saved millions of lives.

Brendan Costello’s family was bracing for goodbyes. But he had one last wish.

Dr. Mehmet Oz, the TV celebrity, dodged queries about Republican plans to cut health insurance for the poor, and emerged unscathed on his ties to major industries.

In West Texas, some with severe illness have not been taken to a doctor until their conditions worsened, officials said.

Many aspects of feline health remain a mystery, even to experts. Our cat-owning reporter learned this the hard way.

A new study found that fair prices for medications like Wegovy and Zepbound would be hundreds less per month than they are now.

Prescription drugs like lorazepam — used to treat anxiety, panic attacks and sleep disorders — play a role in popular TV shows like “The White Lotus” and “The Pitt.”

Dr. Dave Weldon was to have appeared on Thursday in a confirmation hearing before the Senate health committee. He has close ties to Robert F. Kennedy Jr., the new health secretary.

The Substance Abuse and Mental Health Services Administration has already closed offices and could see staff numbers reduced by 50 percent.

The prescription drugs — used to treat anxiety, panic attacks and sleep disorders — play a role in popular TV shows like “The White Lotus” and “The Pitt.”

The United States was the major funder of tuberculosis programs. Now hundreds of thousands of sick patients can’t find tests or drugs, and risk spreading the disease.

In a recent interview, the health secretary also suggested that the measles vaccine had harmed children in West Texas, center of an outbreak.

Some scientists are confident that organs from genetically modified pigs will one day be routinely transplanted into humans. But substantial ethical questions remain.

Here’s how to know, and how to get out of it.

Her “Codependent No More: How to Stop Controlling Others and Start Caring for Yourself,” a guide to shedding toxic relationships, has sold more than seven million copies.

An indefatigable gardener, she was concerned, a colleague said, with “all the things that have to happen for us to get our food.”

Organizations funded by the United States helped keep dangerous pathogens in check around the world. Now many safeguards are gone, and Americans may pay the price.

Dozens of studies have failed to find evidence of a link. The decision to re-examine the question comes as a measles outbreak, driven by low vaccination rates, widens in Texas.

More than 60 percent of all voters — and 47 percent of Democrats — supported a work requirement for Medicaid, the country’s largest health insurance program.

Two more people are reported dead from the disease, and dozens are in isolation, as the outbreak grows.

Dr. Marty Makary will testify before the Senate health committee on Thursday. Lawmakers may press him over staff reductions and changes in agency direction on issues like vaccines.

After voting to confirm Robert F. Kennedy Jr. as health secretary, Senator Bill Cassidy, a doctor and Republican of Louisiana, is embracing “the gestalt” of Kennedy’s measles response.

Since 2008, embassies and other diplomatic posts had been publishing data about local air quality. In many countries, it was the only reliable source of such information.

In an interview, the H.H.S. secretary claimed that unconventional treatments were helping patients but did not mention vaccination.

Kyle Diamantas, a former corporate lawyer, is the new director for the F.D.A. food division, which oversees infant formula. He defended a top maker in cases claiming the company had not warned of potential risks to very low-weight babies.

In places like Mingo County, W.Va., where working-age people are dying at record rates, a nurse learns what it takes to make America healthy.

The world is likely to see millions more malaria infections and 200,000 cases of paralytic polio each year, according to an agency whistle-blower.

Robert F. Kennedy Jr. has described the outbreak in West Texas last week as a “top priority.” But he has not explicitly encouraged Americans to get vaccinated.

Heat from the eruption in A.D. 79 was so intense that it vitrified the brain tissue of one unfortunate Herculaneum resident, a new study confirms.

The Trump administration has canceled at least four of the five contracts with organizations that helped manage the outbreak in Uganda.

Researchers found that compounds in black and green tea leaves acted like “little Velcro” hooks on lead molecules.

Vaccine hesitancy has been rising for years in the United States. Doctors and parents in one rural county are confronting the consequences.

The contracts financed Ebola screening at airports and protective gear for health workers, among other measures. Work had been held up for weeks, contrary to Elon Musk’s claim on Wednesday.

Here are some of the 5,800 contracts the Trump administration formally canceled this week in a wave of terse emails.

The cancellation plays into fears among scientists who worry that Robert F. Kennedy Jr. will use his position as health secretary to sow doubts about vaccines.

The terminations, which hit agencies involved in protecting the nation’s food supply and agricultural products, could have long-lasting consequences, experts said.

Republicans have proposed lowering the federal share of costs for Medicaid expansions, which could reshape the program by gutting one of the Affordable Care Act’s major provisions.