Science
Gas stoves may contribute to early deaths and childhood asthma, new Stanford study finds
Lung-irritating pollution created by cooking with gas stoves may be contributing to tens of thousands of premature deaths and cases of childhood asthma in the United States, according to a new study published in the journal Science Advances.
For decades, scientists have known the flames from a gas stovetop produce nitrogen dioxide, a pungent gas that can inflame a person’s lungs when inhaled. But for the first time, a team of researchers from Stanford University and Oakland-based research institute PSE Healthy Energy published a nationwide estimate of the long-term health consequences associated with cooking with natural gas and propane stoves.
Researchers concluded that exposure to nitrogen dioxide emissions alone may contribute to nearly 19,000 premature deaths in the United States each year. It has also resulted in as many as 200,000 current cases of pediatric asthma compared with cooking with electric stoves, which do not produce nitrogen dioxide.
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Stanford researcher Yannai Kashtan noted higher levels of pollution were correlated with the amount of gas that was burned. But pollution also accumulated at higher levels inside smaller homes.
“If you live in a smaller house, you’re exposed to more pollution, and that can lead to income and racial disparities in exposure,” Kashtan said. “In general, folks living in neighborhoods with higher levels of outdoor pollution also tend to have higher indoor pollution. So this environmental injustice extends indoors as well.”
The American Gas Assn., a trade organization representing more than 200 local energy companies nationwide, dismissed the findings as “misleading and unsupported.”
“Despite the impressive names on this study, the data presented here clearly does not support any linkages between gas stoves and childhood asthma or adult mortality,” the association’s president and CEO, Karen Harbert said in a statement earlier this month.
The study is the latest examining the serious health effects associated with breathing fumes from gas stoves, which release planet-warming carbon emissions and a variety of air pollutants. In recent years, the popular household appliance has become a political hot-button issue as policymakers and regulators have weighed environmental impacts against consumer choice.
Many large cities in California, including Los Angeles, have moved toward phasing out gas stoves in newly constructed residences. Earlier this month, the California Assembly advanced a bill to the Senate that would require gas stoves to come with warning labels detailing the pollution and health effects that can arise from cooking with gas.
Gas stoves emit a variety of pollutants, including asphyxiating carbon monoxide, cancer-causing formaldehyde and benzene. The flame also creates nitrogen dioxide, a precursor to smog and a pollutant that can cause difficulty breathing.
Environmental groups say consumers should be notified about these pollutants and the potential harm they can cause.
“Gas stoves create pollution in our homes, increasing the risk of childhood asthma and other respiratory problems for our families,” said Jenn Engstrom, state director for California Public Interest Research Group. “However, this risk has largely been hidden from the public. Consumers deserve the truth when it comes to the danger of cooking with gas. Warning labels will give consumers what they need to make informed decisions when they purchase appliances for their homes.”
Kashtan and other researchers had previously discovered cooking with gas stoves presented a similar cancer risk as inhaling second-hand cigarette smoke. They also found some gas stoves leaked contaminants even when the burners were off.
The effects are especially devastating to children, whose smaller and still-developing lungs need to take more breaths than adults, Kashtan said. Older adults, especially those with cardiovascular or respiratory illness, are also more vulnerable to pollution from gas stoves.
To alleviate indoor air pollution, experts recommend using ventilation hoods and opening windows while cooking,
Starting in 2008, California required new and redeveloped homes to have ventilation that could prevent pollution from building up indoors. But during their research, measuring emissions in more than 100 households across the country, Yannai said they found many kitchens didn’t have ventilation hoods at all.
Although the health effects of breathing these pollutants are clear, researchers still wonder to what degree these conditions could be reversible. As communities take steps to mitigate their exposure or transition away, he said we could soon see the results.
“It’s never too late to stop breathing in pollution,” he said.
Science
Video: See the Moment the Artemis II Astronauts Exit the Orion Capsule
new video loaded: See the Moment the Artemis II Astronauts Exit the Orion Capsule
transcript
transcript
See the Moment the Artemis II Astronauts Exit the Orion Capsule
New video shows the moment the Orion capsule opened after landing last week. Inside were the Artemis II astronauts who had completed a 10-day mission around the moon.
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“Yes!” “Yeah!” “Let’s go!” “Ike, welcome home. Christina, welcome home. Jeremy, welcome home, brother. There it is — Reid. What’s up? Welcome home, brother.” “Thank you.”
By Cynthia Silva
April 14, 2026
Science
‘Dr. Pimple Popper’ Sandra Lee had a stroke last fall. Here’s how the TV doc is bouncing back
Last fall, “Dr. Pimple Popper” suddenly became a patient herself.
Dr. Sandra Lee, the reality TV dermatologist and surgeon known for tackling ick-inducing skin situations on camera, had a bad day a week before Thanksgiving 2025 while she was taping new episodes of her show at her Upland office.
“I had what I thought was a hot flash. I got super sweaty and didn’t feel like myself,” she told People in an interview published Tuesday. She said she finished the shoot and then headed to her parents’ nearby home, where that evening she experienced shooting pains in one leg and later had trouble navigating down a flight of stairs in the middle of the night.
When she awakened the next day, she said, her left side wasn’t working properly and she was having trouble speaking clearly. It was definitely more than a hot flash.
Her doctor dad — also a dermatologist — told her to get herself to an ER, where she had an MRI that showed evidence of an ischemic stroke, where a vessel supplying blood to the brain gets obstructed. The diagnosis was a shock.
“As a physician I couldn’t deny that I had slurred speech, that I was having weakness on one side,” she said, “but I was like, ‘Well, this is a dream, right?’”
Lee, 55, said unmanaged cholesterol levels and high blood pressure were likely contributors to the stroke, plus the stress of balancing her real-life practice with the demands of “Dr. Pimple Popper.” She returned to production in January, she said, though she was more than a little freaked out.
“I don’t like that I don’t have total control of my left hand or the grip wasn’t as strong. If I feel like I’m not at my best — it’s very scary,” Lee said.
Her neurologist told the outlet that Lee’s symptoms are pretty much gone. Lee said she still notices slight differences when she speaks.
The TV doc is on blood thinners now and is still doing some physical therapy after spending two months post-stroke working through PT and occupational therapy. Lee had to make sure her left hand, among other body parts, was functional and that her balance and movement bounced back.
She does, after all, do precise procedures on camera for the Lifetime audience.
And with new episodes of “Dr. Pimple Popper” set to debut Monday for the first time since 2023, Lee remains fascinated by the people who spend time watching her do extractions and excisions, both on the show and online.
“People watch the videos over and over again because it helps them go to sleep at night,” she told People. But, she added, “Others watch it like it’s a scary movie or a roller coaster.”
Science
Trump administration promised ‘gold standard science.’ Scientists say they got fool’s gold
When President Trump announced Robert F. Kennedy Jr. as his pick for Health and Human Services secretary, he declared that the appointment marked the return of “Gold Standard Scientific Research” in the U.S.
In May 2025 Trump signed the “Restoring Gold Standard Science” executive order. Agencies including NASA and the Department of Energy filed reports on how their science met the official White House “gold standard.” Administration figures peppered public remarks, publications and social media posts with the phrase.
On paper, the administration’s nine-point definition for “gold standard science” reads like a list of fundamental research integrity principles that any scientist would endorse: science that is reproducible, transparent, forthcoming on error and uncertainty, collaborative, skeptical, built on falsifiable hypotheses, impartially peer reviewed, accepting of negative results and free of conflicts of interest.
In practice, critics say, the phrase has become shorthand for science in which preferred outcomes outweigh inconvenient evidence.
“This use of ‘gold standard science’ is deceptive. It sounds really good on its face. It’s advocating for things that are normative in the scientific community,” said Jules Barbati-Dajches, an analyst at the Union of Concerned Scientists, a nonprofit advocacy group.
The same executive order that turned the term into a policy rolled back all scientific integrity policies established during the Biden administration, Barbati-Dajches pointed out, making it harder to pursue and publish scientific findings without threat of political interference.
“It undercuts all of the values and standards and principles that were already being prioritized and implemented in federal agencies,” Barbati-Dajches said.
The executive order describes a decline in public trust in science that began during the COVID-19 pandemic. It cites examples in which government agencies “used or promoted scientific information in a highly misleading manner,” such as the Centers for Disease Control and Prevention’s school-reopening guidelines, a contentious count of the North Atlantic right whale population by the National Marine Fisheries Service and the use by several government agencies of an Intergovernmental Panel on Climate Change warming model that the executive order describes as “highly unlikely.”
“The Trump administration is ensuring that political agendas and ideologies never again corrupt policymaking that should be guided only by Gold Standard Science,” White House spokesman Kush Desai wrote in response to questions from The Times. “So-called ‘scientists’ who are only now concerned that politics are being prioritized over evidence after having stayed silent during the pandemic era are either delusional or partisan hacks.”
Credible, reliable and impartial evidence is the goal of legitimate science. But “the use of the term ‘gold standard science’ is being preferentially used based on the context,” said Dr. Daniel Jernigan, who resigned as director of the CDC’s National Center for Emerging and Zoonotic Infectious Diseases in August over concerns that its new leadership was not taking an “evidence-based approach to things,” he said at the time.
Jernigan cited Kennedy’s changes to the Advisory Committee on Immunization Practices, which advises the CDC on vaccinations. The committee had long followed a set of guidelines known as the Evidence to Recommendations framework, which establishes clear rules for how different types of evidence must be weighed and evaluated when making decisions.
Kennedy replaced the entire 17-member committee with a handpicked group heavily weighted toward vaccine skepticism. “Public trust has eroded,” Kennedy said at the time. “Only through radical transparency and gold standard science, will we earn it back.”
The reconstituted group largely abandoned the framework, allowing the committee to judge evidence of dubious quality alongside large randomized controlled trials.
Its first meeting included an error-filled presentation from a vaccine skeptic on the preservative thimerosal that focused only on a few reports of the shot harming individuals, but left out the many studies that have shown its safety across large populations. The committee ultimately voted not to recommend further vaccines containing thimerosal, which was already removed from childhood vaccines in 2001.
Meanwhile, Jernigan noted, National Institutes of Health director and acting CDC director Dr. Jay Bhattacharya has continued to delay the release of a study that found COVID-19 vaccines reduced hospitalizations related to the virus by 55%.
According to media reports, the study used hospital patients’ vaccination status to calculate the success of the season’s vaccine, a method long used to determine flu vaccine effectiveness. Bhattacharya reportedly wanted to wait for a randomized clinical trial — a method that scientists frequently cite as the “gold standard” for determining an intervention’s effectiveness, but one that is expensive and too time-consuming to evaluate the success of a seasonal flu or COVID-19 shot.
Accepting a lower standard of evidence for vaccines’ reported harms than for their apparent benefits “is not a good way to practice science: that your ideology, your decision about how things should be, determines what your evidence is,” Jernigan said.
The Trump administration didn’t coin the term “gold standard science,” which has been floating around for at least half a century as a label for top-quality research methods. Over the decades, critics have pointed out that it’s not as shiny a metaphor as it seems.
In finance, the gold standard fixes a currency’s value against a specific quantity of a specific object. But in science, nothing is fixed. Old conclusions and beliefs are constantly being overwritten as new evidence comes to light.
“Gold standard science in 1990 would be malpractice in some respects in 2026, and five years from now the gold standard may have changed again, because we’re constantly innovating,” said David Blumenthal, a professor at the Harvard School of Public Health and co-author of the book “Whiplash: From the Battle for Obamacare to the War on Science.”
“Science is changeable and the methods improve constantly, and the people who are most familiar with the possibilities and realities of those methods are the people doing the work at any given time,” he said. “And if they’re not involved, then it’s not gold standard.”
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