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A total solar eclipse will be visible to millions of Americans in April. Here's how to view it

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A total solar eclipse will be visible to millions of Americans in April. Here's how to view it

Paul Maley has spent much of his life chasing solar eclipses.

He has witnessed 83 solar eclipses from 1960 to 2023. On April 8, he plans to see the 84th aboard a cruise ship in Mexico, located right in the path of totality — the swath where the moon fully blocks the sun.

“It’s more eclipses than anyone living or dead,” he said, proudly.

But millions of Americans will also get a chance to see the next eclipse. The heavenly display will be visible — weather permitting — in North America to about 31.5 million people living in the path of totality, including a long stretch through the U.S. The rest of the continental United States, as well as parts of Alaska and Hawaii, will be able to see a partial solar eclipse.

Maley’s pursuit of the phenomenon has taken him across the world — from the icy land of Antarctica to the Cocos Islands off the western coast of Australia. Some of the experiences have been unnerving, like a trip to Turkey in 1999 during a period of unrest when military police filled the streets, Maley said.

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Others have been blissfully simple. A trip to watch a partial eclipse — which doesn’t attract nearly the same fanfare as a total eclipse (more on that later) — in South Korea with his wife ended with a celebration for two at a Dunkin Donuts.

Maley, 76, says these journeys are somewhat of an obsession for him. But they also provide an escape and are an easy way to put one’s place in the universe in perspective, he said.

“No matter how many things in this world are screwed up, whether it’s political or military or economic, nobody can change what’s going on in the sky when it comes to an eclipse of the sun,” he said. “It’s going to happen. There’s nothing you can do about it, so you might as well go there and enjoy it and free yourself from all the problems that you’re facing.”

What happens during a total solar eclipse?

A total solar eclipse happens when the moon passes between the sun and Earth, completely blocking the face of the sun from view and casting a shadow onto the Earth. For people viewing the eclipse from locations where the moon’s shadow completely blocks the sun, known as the path of totality, the sky will become dark.

Depending on the weather and visibility, people along the path of totality will see the sun’s corona, the outermost part of the sun’s atmosphere, which is typically obscured by the sun’s brightness. Just before totality, viewers can also spot flashes of light — known as Baily’s beads — along the circumference of the moon.

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A rapid drop in temperature typically occurs during a total solar eclipse. At times, birds will fall silent and nocturnal animals will abruptly awaken, mistaking the brief phenomenon for nightfall.

The phenomenon also has appeared — and had various interpretations — in religious texts. Some Indigenous people have traditions they observe — like abstaining from food — during solar eclipse events.

The last total solar eclipse that crossed the United States was in August 2017. It was the first total solar eclipse visible in the contiguous U.S. in 38 years, according to NASA. The April eclipse will be the last to be visible in the Lower 48 until Aug. 23, 2044.

When will this total eclipse happen and who can see it?

The eclipse will begin over the South Pacific Ocean and will move diagonally across Mexico, the United States and Canada. Mexico’s Pacific coast will be the first location in continental North America to experience totality around 11:07 a.m. PDT. The eclipse will enter the United States in Texas and make its way through Oklahoma, Arkansas, Missouri, Illinois, Kentucky, Indiana, Ohio, Pennsylvania, New York, Vermont, New Hampshire and Maine. A map on NASA’s website provides an approximate time that each location in the path of totality will see the eclipse.

While more than 30 million Americans will get a chance to experience a total solar eclipse, most will see only a partial eclipse, which happens when the moon passes between the sun and the Earth but all three bodies are not perfectly lined up, as is the case on either side of the path of totality. Rather than being completely obscured, the sun will appear as a crescent shape.

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The maximum duration of totality along the eclipse path will be 4 minutes, 28 seconds, though it’s likely to be shorter in most locations.

Why does this happen and how often?

Solar eclipses occur because, as the Earth is orbiting the sun, the moon is orbiting the Earth. Roughly every 28 days as the moon makes a complete journey around the Earth it moves between the sun and Earth, said Nick DiFrancesco, an assistant professor of geology at the University at Buffalo.

But eclipses don’t happen every 28 days.

“The three factors that influence whether an eclipse is going to occur or not are the alignment of the Earth, moon and sun, that tilt or inclination of the moon’s orbit around the Earth and the last thing, essentially, is how close to the Earth the moon is,” DiFrancesco said.

Those factors have to be in perfect alignment to get a total solar eclipse.

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How to get the best viewing experience

People frequently travel to the path of totality to experience the total solar eclipse with their own eyes. Eclipse chasers will tell you that’s the only way to do it. There are even travel guides that plan complete vacations with the eclipse as the central focus.

This year, Maley has helped organize a cruise for roughly 200 people to see the eclipse in Mexico. He also helped put together a trip for eclipse chasers at an all-inclusive beachfront hotel in Mazatlan, Mexico, which will feature discussions with experts in addition to the viewing.

Even the popular travel website Expedia put together vacation packages for the eclipse. The U.S. National Park Service has posted tips about which parks are best situated to see the eclipse.

However you choose to view it, experts say, you should plan ahead. Cities in the path of totality are expecting an influx of visitors and major traffic jams as people flood to those communities to get a glimpse of the scientific wonder.

The weather can also affect visibility. Experts suggest monitoring the forecast and being flexible enough to move from your initial location to one with less cloud cover, if necessary.

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And while it’s unlikely you’ll need much gear to view the eclipse, there is one must-have: adequate eye protection. Solar viewing glasses, also known as eclipse glasses, can be purchased online. Experts recommend taking care to ensure the glasses meet the ISO 12312-2 standard for solar viewers and to inspect them for any damage prior to viewing the eclipse.

NASA experts say a quick way to do this is to pull out your phone flashlight and shine it onto the glass lens. If they offer enough protection, you’ll only be able to see a pinpoint of light.

Maley may be biased but he says there is no substitute for seeing an eclipse in person.

“It’s something that has to be seen. The photographs that people have taken, including myself, never do it justice, and even the videos are all two-dimensional,” he said. “It’s just something that cannot accurately be conveyed to people unless they’re right there on the same spot experiencing it with you.”

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Opinion: Most older Americans who need hearing aids don't use them. Here's how to change that

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Opinion: Most older Americans who need hearing aids don't use them. Here's how to change that

Having depended on hearing aids for nearly three decades, I’m astounded by the lack of Medicare coverage for devices that can solve a problem afflicting tens of millions of older Americans.

Nearly two-thirds of Americans over age 70 have some degree of hearing loss, and over half of those 75 and older experience impairment serious enough to be considered disabling. But most don’t wear hearing aids.

Because the legislation that created Medicare nearly 60 years ago specifically excluded hearing aids, those who rely on the program’s traditional coverage must pay for them out of pocket. That expense is among the chief barriers to wider use of the devices.

Age-related hearing loss impedes basic communication and the relationships that depend on it. Expanded access to hearing aids could therefore do no less than enable more older Americans to establish and maintain the social connections that are essential to a meaningful life.

Hearing loss is like an invisible, muffling curtain that falls in front of anyone speaking. Asking people to repeat themselves can yield irritated and hurtful responses. And it’s hopeless to ask a soft-spoken person to speak up. Sometimes it’s easier just to nod and smile.

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Many older people I know choose to avoid social gatherings altogether because they can’t hear well. Without hearing aids, I’d stay home too.

Hearing loss can harm one’s health in other ways. For example, I’ve written about the need for a comprehensive approach to reducing cancer risk at older ages, including preventive services such as colorectal cancer screening. But these services rely on conversations between patients and their healthcare providers. An older patient’s ability to hear and understand such conversations shouldn’t be taken for granted or ignored.

The Food and Drug Administration did improve access to hearing aids by making some of them available without a prescription in 2022, but the over-the-counter devices are inadequate for serious hearing loss like mine. My private health insurance, meanwhile, started covering hearing aids a few years ago, providing up to $2,500 for them every five years. One hearing aid alone can cost that much or more, however.

Despite its limitations, my private coverage for hearing aids is better than nothing, which is what traditional Medicare provides.

Hearing loss is more common among lower-income people and those without advanced education. The toll from noisy workplaces compounds age-related hearing loss for some. One analysis found that most Americans with a serious hearing disability can’t afford the typical price of hearing aids.

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Many of the older adults who can’t come up with these significant out-of-pocket expenses spent their working years in low-wage jobs that our country depends on. Denying them treatment for their hearing loss is a lousy way to treat people who gave years of service to our society.

Although some older adults with hearing loss won’t benefit from hearing aids, Medicare coverage for the devices might encourage more beneficiaries to get their hearing tested so they can get the treatment that’s right for them. And while Medicare coverage alone won’t address the stigma some people associate with hearing aids, the availability of newer, more comfortable and less obvious technology might win over some refuseniks.

Legislation reintroduced with bipartisan support last year would finally correct this glaring gap in Medicare coverage by removing the hearing aid exclusion from the law. There’s no reason to delay action on this any longer. Are our representatives listening?

Mary C. White is an adjunct professor of environmental health at Emory University’s Rollins School of Public Health, a Public Voices fellow at AcademyHealth in partnership with the OpEd Project and a former federal epidemiologist.

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Second human case of bird flu detected in Michigan dairy worker

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Second human case of bird flu detected in Michigan dairy worker

A second human case of bird flu in a diary worker has been confirmed in Michigan, state and federal health officials announced Wednesday.

The symptoms were mild, consisting of conjunctivitis. The Texas dairy worker who contracted the virus in March also came down with pink eye.

At a press call on Wednesday, Nirav Shah, principal deputy director of the U.S. Centers for Disease Control and Prevention, said the finding was “not unexpected” and that it was a scenario “that we had been preparing for.”

He said that since the discovery of H5N1 in dairy cattle, state and federal health officials have been closely monitoring farmworkers and slaughterhouse workers and urging farmers and farmworker organizations to “be alert, not alarmed.”

Federal officials say they still believe the human health risk of bird flu is low; however, it underscores the need for people who are interacting with infected or potentially infected farm animals or birds to take precautions, including avoiding dead animals and wearing personal protective equipment (PPE) if there’s a need to be in close contact.

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Though a nasal swab from the person in Michigan tested negative for influenza, an eye swab from the patient was shipped to the CDC and tested positive for influenza A(H5N1) virus.

This is the third case of H5N1 reported in the United States. A poultry worker in Colorado was identified in 2022.

Although the symptoms in the three farmworkers in the U.S. have been mild, people elsewhere in the world have suffered more severe illness, including death. According to the World Health Organization, between Jan. 1, 2003, and March 28, 2024, there have been 888 cases of human infection from 23 countries; 463 were fatal.

In preparation for a more widespread outbreak, the CDC updated its guidance for PPE in dairies and issued a nationwide order for healthcare providers to be on the lookout for novel influenza.

On Tuesday, the CDC asked clinical laboratories and health departments to increase the number of influenza samples being analyzed “to maximize the likelihood of catching a case of H5N1 in the community,” Shah said.

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The US Department of Agriculture is also expanding its surveillance and support by providing $1500 to non-infected farms to beef up biosecurity, and $100 to producers who want to buy inline samplers to test their milk. The agency will also provide $2000 per farm to cover veterinary fees for testing, as well as shipping costs to send those tests to laboratories for analysis.

There have been no cases of H5N1 detected in California’s dairy herds.

Officials said ongoing analysis of the nation’s dairy supply suggests it is safe to consume, Despite the risk to human health being low, an official with the Administration for Strategic Preparedness and Response said it will make Tamiflu available upon request “to jurisdictions that do not have their own stockpile and are responding to pre-symptomatic persons with exposure to confirmed or suspected infected birds, cattle or other animal exposures.”

Dawn O’Connell, assistant secretary of the preparedness agency, said it started the “fill and finish” process for approximately 4.8 million doses of vaccine “that is well matched to the currently circulating strain of H5N1 through the national pre-pandemic influenza vaccine stockpile program.”

She said the decision to get started on H5N1 vaccines was not a response to any heightened concern, but since it takes several months to fill and finish vaccine doses, the agency “thought it made sense given what we were seeing.”

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Gas stoves may contribute to early deaths and childhood asthma, new Stanford study finds

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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.

Aggressive and impactful reporting on climate change, the environment, health and science.

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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.

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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.”

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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.

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“It’s never too late to stop breathing in pollution,” he said.

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