Tag Archives: domestic-health and science

Winter ice storm: Millions across the South and central US brace as officials urge staying off roads



CNN
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A winter storm bringing the triple threat of ice, sleet and snow Tuesday to parts of the South and central US has prompted officials to close roads and schools as they urge people to avoid traveling in dangerous conditions.

About 38 million people from Texas and Oklahoma to as far east as Kentucky and West Virginia are under various forms of winter weather alerts, including those warning of dangerous ice accumulations forecast to make roads a nightmare.

“In addition to potentially hazardous travel conditions, this amount of ice will lead to tree damage and power outages across the hardest-hit regions,” the National Weather Service warned in its forecast Monday.

In Texas, residents in cities including Dallas, San Antonio and Austin can expect icy roads as well as some sleet Tuesday, when heavy rain and flash flooding are also possible in the eastern parts of the state.

Amid such conditions, the governor has requested the state’s emergency management division to increase its resources so it can be ready to respond through Thursday.

The storm has also led several school districts in the Dallas-Fort Worth area and Austin to close Tuesday, and more than 400 flights departing from Texas airports have been cancelled. Multiple roadways in Texas have been shut down due to ice accumulation, according to the state’s transportation department.

As ice began forming on roads in Little Rock, Arkansas, the governor declared a state of emergency Monday and activated the winter weather support teams of the state’s National Guard to be prepared in helping police in their response to the storm.

“I encourage Arkansans who are experiencing winter weather to avoid travel if possible and heed the warnings of local officials,” Gov. Sarah Huckabee Sanders said on Twitter.

The emergency order directs $250,000 toward discretionary use by the head of the state’s Division of Emergency Management to provide funding for program and administrative costs, the order stated.

“The real enemy is going to be that ice,” said Dave Parker, a spokesperson for the Arkansas Department of Transportation. “This could potentially be a pretty dangerous situation.”

Parker added that majority of the state is expected to be impacted, and the state is treating most major roads.

By late Monday, ice had already spread across grounds in Memphis, Tennessee, and Louisville, Kentucky, as well as Texas, where at least a few car crashes were reported in Austin with no injuries.

The storm is poised to produce a mix of wintry precipitation ranging from rain and sleet to ice and it will hit areas in the southern and central regions in waves through Wednesday.

And while the forecast shows there will be periods of reprieve over the next two days, roads will likely remain dangerously slick throughout the storm as temperatures remain low.

Indeed, Tuesday is expected to be the toughest day for driving as Texas bridges and roads become icy, according to the weather service’s Fort Worth office.

“More widespread freezing rain/sleet is expected Tuesday and Wednesday morning, with worsening travel impacts during this time,” the local weather agency said.

Significant icing of about half of an inch is expected on roads in Austin, San Angelo and Dallas while San Antonio may see up to a tenth of an inch of ice.

Meantime, Texas’ primary electricity provider, the Electric Reliability Council of Texas, told CNN it will be able to meet residents’ demand as temperatures plummet.

“We expect sufficient generation to meet forecasted demand and are continuing to monitor forecasts, this week. We are not asking for Conservation at this time. We are informing the public that IF they are experience an outage to reach out to their local power provider,” the agency said in an email.

Elsewhere in the South, up to a half of an inch of ice could glaze roads in Memphis, Tennessee. In the state’s Dyer County, icy conditions led officials to shut down the I-155 bridge, according to the highway patrol.

Meanwhile, Little Rock in Arkansas is forecast to see multiple rounds of ice that could amass up to half an inch.

In neighboring Oklahoma, residents in Oklahoma City are under a winter weather advisory through Wednesday afternoon, with the expectation of seeing up to two tenths of an inch of ice.

Icing up to two-tenths of an inch could be seen in Louisville, Kentucky, while Charleston, West Virginia, can see sleet up to an inch and ice up to a tenth of an inch.



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Infant screen time could impact academic success, study says



CNN
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Letting infants watch tablets and TV may be impairing their academic achievement and emotional well-being later on, according to a new study.

Researchers found that increased use of screen time during infancy was associated with poorer executive functioning once the child was 9 years old, according to the study published Monday in the journal JAMA Pediatrics.

Executive functioning skills are mental processes that “enable us to plan, focus attention, remember instructions, and juggle multiple tasks successfully,” according to the Harvard University Center on the Developing Child.

Those executive functioning skills are important for higher-level cognition, such as emotional regulation, learning, academic achievement and mental health, according to the study. They influence our success socially, academically, professionally and in how we care for ourselves, said Dr. Erika Chiappini, assistant professor of psychiatry and behavioral sciences at the Johns Hopkins University School of Medicine in Baltimore.

“Though these cognitive processes naturally develop from infancy through adulthood, they are also impacted by the experiences that we have and when we have them in our development,” said Chiappini, who was not involved in the study, in an email.

The results support recommendations from the American Academy of Pediatrics, which discourages all screen time before 18 months old, with the exception of video chatting, said Dr. Joyce Harrison, associate professor of psychiatry and behavioral sciences at the Johns Hopkins University School of Medicine. Harrison was not involved in the research.

The study looked at data from Growing Up in Singapore Towards healthy Outcomes, or GUSTO, which surveyed women from all socioeconomic backgrounds during their first trimester of pregnancy. The sample was made up of 437 children who underwent electroencephalography (EEG) scans, which are used to look at the neural pathways of cognitive functions in the brain, at age 1, 18 months and 9 years old.

The parents reported each child’s screen time, and researchers found there was an association between screen time in infancy and attention and executive function at 9 years old, according to the study.

Further research needs to be done, however, to determine if the screen time caused the impairments in executive function or if there are other factors in the child’s environment that predispose them to both more screen time and poorer executive functioning, the study noted.

In a learning-packed time like infancy, one of the big problems with screen use is that young children aren’t learning much from them, according to AAP.

“There is no substitute for adult interaction, modeling and teaching,” Harrison said.

Babies have a hard time interpreting information presented in two dimensions, such as on screens, and have trouble distinguishing fantasy from reality, Chiappini said.

“Babies and kids are also social learners and very much benefit from the back-and-forth interaction with others (adults and kids) which is hard to achieve with screens,” Chiappini said via email.

When it comes to emotional regulation, infants and toddlers can learn from their caregivers when they model self-control or help to label emotions and appropriate expressions, she added.

For example, you can give a young child options for what they can do when they are mad, like taking a break or breathing deeply instead of inappropriate behaviors like hitting, Harrison said.

Talking about emotions can be too abstract for preschool-age kids, and in those cases using color zones to talk about emotions can be helpful, said Dr. Jenny Radesky, a developmental behavioral pediatrician and associate professor of pediatrics at Michigan Medicine C.S. Mott Children’s Hospital. Radesky was not involved in the research.

Calm and content can be green; worried or agitated can be yellow; and upset or angry can be red, using graphics or images of faces to help kids match what they’re feeling with their color zone. To reinforce it, adults can talk about their own emotions in terms of colors in front of their kids, Radesky said in a CNN previous article.

Parents and children can go through the colors together and come up with calming tools for the different zones, she added.

To strengthen those executive function skills, Harrison says it’s important to provide structured engagement where a child can work through solving problems to the extent that they can at their developmental level — instead of having problems solved for them.

And yet, sometimes parents just need to get the laundry done or attend a work meeting, and screens can feel like an effective distraction.

For very young children, it’s probably still best to avoid screen time, Harrison emphasized.

Instead, try to involve the child in house chores, she said.

“Give your toddler some clothes to fold alongside you while you are trying to get laundry done or keep your infant safely in a position where you can make frequent eye contact while you are engaged your chore,” Harrison said via email.

For older preschoolers, save up your screen time to use strategically, she said.

“For example, their one hour of screen time can be reserved for a time when you have an important video meeting to attend,” Harrison said.

And there is some content that can help teach emotional regulation when your tank is empty. Finding media that is aimed at speaking to children directly about emotions — like Daniel Tiger or Elmo Belly Breathing — can be like a meditation instead of distraction, Radesky previously told CNN.

And you can make screen time works better by engaging your child while they watch, Chiappini said. Ask questions like “what is that character feeling?” and “what could they do to help their friend?” she added.

Raising children is a complex and sometimes overwhelming task, and no caregiver can give their child everything they want to all the time, Radesky said.

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Orbiter captures image of a bear’s face on Mars

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CNN
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As a NASA orbiter turned its camera to the Martian surface, the face of a bear seemed to be looking back.

A camera aboard the Mars Reconnaissance Orbiter, called the High Resolution Imaging Experiment, or HiRISE, captured an image of the unusual geological feature in December.

A circular fracture pattern on the Martian surface shapes the head, while two craters resemble eyes. A V-shaped collapse structure creates the illusion of the nose of a bear.

The circular fracture might be due to the settling of a deposit on top of a buried impact crater that had been filled in with lava or mud. The noselike feature is possibly a volcanic vent or a mud vent.

The University of Arizona, which developed the camera with Ball Aerospace, shared the image on January 25.

The photo is reminiscent of another celestial “face” glimpsed by a NASA space observatory in October 2022, when the sun appeared to smile due to dark spots called coronal holes.

And last March, the Curiosity rover spotted a rock formation that resembled a flower on Mars.

The HiRISE camera has been taking images of Mars since 2006, when the Mars Reconnaissance Orbiter began circling the red planet. The powerful camera was designed to capture detailed images of the Martian surface, including features as small as 3 feet (1 meter).

The orbiter circles Mars every 112 minutes, flying from about 160 miles (255 kilometers) above the south pole to 200 miles (320 kilometers) over the north pole.

The spacecraft and its suite of instruments help NASA scientists study the Martian atmosphere, weather and climate, and how they change over time. The orbiter searches for evidence of water, ice and complex terrain and scouts future landing sites for other missions.

Most recently, the orbiter returned stunning images of what winter looks like on Mars.

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Covid-19 is a leading cause of death for children in the US, despite relatively low mortality rate



CNN
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Covid-19 has become the eighth most common cause of death among children in the United States, according to a study published Monday.

Children are significantly less likely to die from Covid-19 than any other age group – less than 1% of all deaths since the start of the pandemic have been among those younger than 18, according to federal data. Covid-19 has been the third leading cause of death in the broader population.

But it’s rare for children to die for any reason, the researchers wrote, so the burden of Covid-19 is best understood in the context of other pediatric deaths.

“Pediatric deaths are rare by any measure. It’s something that that we don’t expect to happen and it’s a tragedy in a unique way. It’s a really profound event,” said Dr. Sean O’Leary, chair of the American Academy of Pediatrics’ Committee on Infectious Diseases.

“Everyone knows that Covid is the most severe in the elderly and immunocompromised and that it’s less severe in children, but that does not mean it’s a benign disease in children. Just because the numbers are so much lower in children doesn’t mean that they’re not impactful.”

In 2019, the last year before the pandemic, the leading causes of death among children and young adults ages 0 to 19 included perinatal conditions, unintentional injuries, congenital malformations or deformations, assault, suicide, malignant neoplasms, diseases of the heart and influenza and pneumonia.

The researchers’ analysis of data from the US Centers for Disease Control and Prevention found that there were 821 Covid-19 deaths in this age group during a 12-month period from August 2021 to July 2022. That death rate – about 1 for every 100,000 children ages 0 to 19 – ranks eighth compared with the 2019 data. It ranks fifth among adolescents ages 15 to 19.

Covid-19 deaths displace influenza and pneumonia, becoming the top cause of death caused by any infectious or respiratory disease. It caused “substantially” more deaths than any vaccine-preventable disease historically, the researchers wrote.

According to CDC data, children are less vaccinated against Covid-19 than any other age group in the US. Less than 10% of eligible children have gotten their updated booster shot, and more than 90% of children under 5 are completely unvaccinated.

“If we looked at all those other leading causes of death – whether you’re talking about motor vehicle accidents or childhood cancer – and we said, ‘Gosh, if we had some simple, safe thing we could do to get rid of one of those, wouldn’t we just jump at it?” And we have that with Covid with vaccines,” said O’Leary, who is also a professor of pediatric infectious disease at the University of Colorado School of Medicine and Children’s Hospital Colorado.

A CDC survey of blood samples suggest that more than 90% of children have already had Covid-19 at least once.

There is uncertainty about exactly how much risk the virus will continue to pose, O’Leary said, but the potential benefits of vaccination clearly outweigh any potential risks.

“Vaccination clearly is our best option right now,” and the benefits clearly outweigh the risks, he said. “Better safe than sorry.”

The findings of the new study, published in JAMA Network Open, may underestimate the mortality burden of Covid-19 because the analysis focuses on deaths where Covid-19 was an underlying cause of death but not those where it may have been a contributing factor, the researchers wrote. Also, other analyses of excess deaths suggest that Covid-19 deaths have been underreported.

As Covid-19 continues to spread in the US, the researchers say that intervention methods such as vaccination and ventilation will “continue to play an important role in limiting transmission of the virus and mitigating severe disease.”

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Peshawar, Pakistan mosque: Suspected suicide attack kills more than 30 people and injures 125



CNN
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A deadly blast inside a mosque in Pakistan’s northwestern city of Peshawar Monday was likely a suicide attack, according to authorities.

The powerful explosion left at least 31 people dead and 125 injured, according to Peshawar deputy commissioner Shafiullah Khan.

Rescue operations are now underway inside the mosque, which is situated inside a police compound in the city and is mostly attended by law enforcement officials.

No claims of responsibility have been made in relation to the attack so far, which took place in the middle of afternoon prayers.

In a statement to CNN, Peshawar Police Chief Mohammad Aijaz Khan said the blast inside the Police Lines Mosque was “probably a suicide attack,” echoing Pakistan Prime Minister Shehbaz Sharif.

“The brutal killing of Muslims prostrating before Allah is against the teachings of the Quran,” Sharif said in a statement, adding that “targeting the House of Allah is proof that the attackers have nothing to do with Islam.”

“Terrorists want to create fear by targeting those who perform the duty of defending Pakistan,” the prime minister continued.

“Those who fight against Pakistan will be erased from the page.”

Sharif went on to say that “the entire nation and institutions are united to end terrorism” and that there’s a “comprehensive strategy” in the works in order to restore law and order in the northwest Khyber Pakhtunkhwa province, where Peshawar is located.

Pakistan’s former leader Imran Khan, whose party the Pakistan Tehreek e Insaaf holds the provincial government of Khyber Pakhtunkwa also condemned the blast saying in a tweet that “it is imperative we improve our intelligence gathering & properly equip our police forces to combat the growing threat of terrorism.”

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MrBeast helps 1,000 blind people see again by sponsoring cataract surgeries



CNN
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YouTube superstar MrBeast is making the world clearer – for at least 1,000 people.

The content creator’s latest stunt is paying for cataract removal for 1,000 people who were blind or near-blind but could not afford the surgery.

“We’re curing a thousand people’s blindness,” says MrBeast – real name Jimmy Donaldson – in the Saturday video, which reached over 32 million views as of Sunday afternoon.

The video features touching before-and-after footage of patients seeing with clear vision after finishing the surgery. The YouTuber also gave cash donations and other gifts to some of the participants.

Jeff Levenson, an ophthalmologist and surgeon, worked with Donaldson to perform the first round of surgeries in Jacksonville, Florida. Levenson has coordinated the “Gift of Sight” program for over 20 years, which provides free cataract surgery for uninsured patients who are legally blind due to cataracts.

“Half of all blindness in the world is people who need a 10-minute surgery,” Levenson says in the video, referring to the cataract removal surgery.

Levenson explained to CNN he became inspired to help people access cataract surgery after undergoing his own cataract correction surgery.

“In the days and weeks after my own cataract surgery, I was stunned by how bright and beautiful and vivid the world was,” he said. “But I was shocked by the idea that there are hundreds of millions, probably 200 million people around the world, who are blind or nearly blind from cataracts and who don’t have access to the surgery.”

Levenson got a call from a member of Donaldson’s team in September. “I had never heard of MrBeast,” he said. “So I almost hung up. But I gratefully did not hang up.”

They started by calling homeless shelters and free clinics to create a list of patients in the Jacksonville area who needed cataract surgery but could not afford it. Eventually, they had a group of 40 patients – and Levenson performed all of their surgeries in a single day, starting at 7 a.m. and ending at 6 p.m.

Levenson said that patients were in “disbelief that somebody would actually seek them out to to rescue them from blindness, and then have the kindness and generosity of spirit to offer the surgery.”

The ophthalmologist also connected Donaldson’s team with SEE International, for which he serves as the chief medical officer. The nonprofit provides free eyecare around the world to patients in need. The organization helped Donaldson reach even more patients, for a total of 1,000 surgeries completed around three weeks. The video shows patients receiving the surgery in Jamaica, Honduras, Namibia, Mexico, Indonesia, Brazil, Vietnam and Kenya.

Levenson said he hopes the video and Donaldson’s generosity inspire “a concerted effort to end needless blindness.”

“If MrBeast can light a fire, and if we can get governmental and private support behind it, we can end half of all the blindness in the world,” he said. “Without all that much cost, and with incredible gains in human productivity and human potential.”

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6 dead, 3 injured in crash between bus and box truck in upstate New York



CNN
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Six people died and three others were injured in a crash involving an express bus and a freight truck in upstate New York Saturday morning, according to authorities.

New York State Police responded to a collision between the bus and the Freightliner box truck around 6 a.m. ET on State Highway 37 in Louisville, a town near the US-Canada border, according to a press release from the agency.

The crash left one person in critical condition and seriously injured two people who were on the express bus, state police said. Victims were transported to several hospitals, according to the release.

There were 16 people on board the vehicles, 15 in the express bus and one in the truck, according to Matthew Denner, director of Emergency Services for St. Lawrence County.

“The facts about the cause of this accident are unknown at this time,” spokesperson Randolph P. Ryerson for Penske, the rental company for the truck involved, told CNN in a statement.

“We do not yet have specific information about the rental vehicle involved or information about who was driving the rental vehicle at the time of the incident,” Ryerson added.

The National Transportation Safety Board announced it is launching a six member team to conduct a safety investigation into the fatal collision.

Mayor Mike Zagrobelny of Waddington, a town near the scene of the accident, thanked first responders from around the county who assisted in a post on Facebook Saturday.



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CNN Exclusive: Secretive process to select astronauts for NASA’s next moon mission

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CNN
 — 

Sometime this spring, NASA will make one of the biggest announcements in its history when it names the initial four-person crew for its flagship Artemis program to return astronauts to the moon for the first time in 50 years.

Scheduled to launch in 2024, Artemis II will be the program’s first crewed mission to orbit the moon, flying farther into space than any humans since the Apollo program and paving the way for the Artemis III crew to walk on the moon in 2025 — all aboard the most powerful rocket ever built and at a price tag that by then will approach $100 billion.

Yet, as publicized as the Artemis II mission is, the process of how its crew will be chosen is so secretive that it remains a mystery even for many on the inside. Other than announcing the astronauts’ nationalities — three Americans, one Canadian — NASA has said almost nothing publicly about who will be selected or how that decision will be made.

CNN spoke with nearly a dozen current and former NASA officials and astronauts to pull back the curtain on the secretive selection process. Based on those interviews, CNN not only gained exclusive insights into how the crew will be selected — it has also whittled down the list of candidates those insiders say are generating the most buzz at NASA.

At the top of everyone’s list for the first Artemis crew is Reid Wiseman, a 47-year-old decorated naval aviator and test pilot who was first selected to be a NASA astronaut in 2009. Wiseman stepped down as chief of the astronaut office in November, a prestigious job historically responsible for selecting the initial crew assignment for each mission, but which also comes with a big catch — the chief isn’t eligible to fly in space.

“Being chief is a crummy, lousy job,” former NASA astronaut Garrett Reisman told CNN. “No one wants it, especially now.”

While it may be a job that few astronauts want ahead of the Artemis crew assignments, it does come with one big advantage.

“Historically, the one benefit of being chief is that, when you did step down, you gave yourself the best flight assignment available at the time. That was kind of an acknowledged perk,” Reisman said. “You did this horrible job on our behalf. Thank you for doing that. Here’s your reward. You get to put yourself in the best seat around.”

Without question, the best open seat right now is on Artemis II — a high-pressure, high-visibility mission that will send four astronauts on a roughly 10-day mission around the moon and back.

INTERACTIVE: Trace the path Artemis I will take around the moon and back

Before stepping down as chief in November, just two days before the launch of Artemis I, the program’s first successful uncrewed test flight, Wiseman made another consequential move in August, when he reversed a previous NASA decision to select the Artemis crew from an initial core group of just 18 astronauts previously deemed the “Artemis Team.”

Instead, Wiseman expanded the group of candidates to all 41 active NASA astronauts.

“The way I look at it, any one of our active astronauts is eligible for an Artemis mission,” Wiseman said at the time. “We just want to assemble the right team for this mission.”

Determining the “right team” for a mission to space has always been a mysterious process, going all the way back to the 1950s. That’s when NASA was making its first flight assignments for its initial Mercury missions, made famous by Tom Wolfe’s book “The Right Stuff.”

Though the criteria may have changed, the process remains incredibly secretive. CNN has learned the decision for who gets to go to the moon will be made by three key people at NASA’s Johnson Space Center in Houston, where every US astronaut has lived and trained since 1961.

The first person in the decision process is the chief astronaut, a role currently filled on an acting basis by Wiseman’s deputy, Drew Feustel. Sources told CNN that the chief, whether it’s Feustel or someone else, will take their initial recommendations to the head of the Flight Operations Directorate, Norm Knight, and then on to the director of Johnson Space Center, Vanessa Wyche, who is responsible for signing off on the final four selections.

Cracking the code on how that decision is made is as complex as spaceflight itself.

“To this day, it’s a dark area,” former NASA astronaut Mike Mullane told CNN. “It’s terra incognita (unknown territory). Nobody knows! At least not in our era they didn’t.”

What is known is that NASA Administrator Bill Nelson, a former Democratic senator from Florida, will have no role in the process, something he confirmed for the first time to CNN earlier in January when he said that the space agency’s Washington leadership will “stay out of the selection” of the Artemis II crew.

“That is done by the people at the Johnson Space Center. They will make the decision,” Nelson told CNN. “I do not know if they’ve decided who the crew is, nor should I.”

The only thing set in stone is that the Artemis II crew will consist of three American astronauts and one Canadian, terms that were cemented in a 2020 treaty between the two countries. From the beginning, NASA has also emphasized the need for a program named after Apollo’s twin sister in Greek mythology, Artemis, to have a crew with a heavy mix of gender, racial and professional diversity.

NASA has a far more diverse pool of astronauts to choose from now than during the Mercury program, when all seven astronauts were White, male, military test pilots. More than a third of the Artemis generation’s 41 astronauts are women and 12 are people of color.

The Artemis generation of astronauts is also professionally diverse, with only 16 pilots in its ranks. The rest are “mission specialists” with expertise in biology, geography, oceanography, engineering and medicine.

Nearly a dozen current and former NASA officials and astronauts told CNN they anticipated multiple test pilots being named to the crew of Artemis II, since the mission marks the first crewed test flight to the moon since the Apollo program.

“Just having the courage to go in there and be the first ones and be cool about it, that does take a certain amount of skill and experience and maturity,” said Reisman, the former astronaut. “We’re going beyond Low Earth Orbit for the first time in a very long time, on only the second flight of this vehicle.”

If Wiseman, a White man, is selected, that means the other spots will almost certainly need to go to at least one woman and at least one person of color.

People familiar with the process tell CNN that along with Wiseman, there are a handful of other candidates atop the list. Among them is Victor Glover, a 46-year-old naval aviator who returned to Earth from his first spaceflight in 2021 after piloting the second crewed flight of SpaceX’s Crew Dragon spacecraft and spending nearly six months aboard the International Space Station. The veteran of four spacewalks earned a master’s in engineering while moonlighting as a test pilot.

Randy Bresnik, 55, is also a decorated naval aviator and test pilot who flew combat missions in support of Operation Iraqi Freedom. He has flown two missions to the International Space Station: one on the Space Shuttle, another on a Russian Soyuz spacecraft. Bresnik is often mentioned as a top contender for Artemis because, since 2018, he has overseen the astronaut office’s development and testing of all rockets and spacecrafts that will be used in the Artemis missions.

There are four women who people familiar with the process tell CNN are atop the list of likely candidates. Among them are Christina Koch and Jessica Meir, both of whom made history in 2019 when together they performed the first all-female spacewalk.

The 43-year-old Koch, a veteran of six spacewalks, also holds the record for the longest single spaceflight by a woman, with a total of 328 days in space. Koch, an electrical engineer, and Meir, a 45-year-old biologist, were both selected as mission specialists in NASA’s 2013 astronaut class after stints at remote scientific bases in polar regions. That experience of surviving in hostile climates and uncomfortable environments is critical for a crew who will be cramped inside a 17-foot-wide (5-meter-wide), gumdrop-shaped capsule for roughly 10 days.

“We pride ourselves on expeditionary behavior: being a good teammate, emptying the trash can when it’s full, cleaning out the dishwasher when your parents ask you. Those sorts of things,” Wiseman said in August. “That’s really what we’re looking for in those first Artemis missions. Technical expertise. Team player.”

Anne McClain is a decorated army pilot and West Point graduate who flew more than 200 combat missions in support of Operation Iraqi Freedom and went on to graduate from the US Naval Test Pilot School in 2013, the same year she was selected to be a NASA astronaut. After launching on a Russian Soyuz spacecraft in 2018, the 43-year-old spent more than 200 days in space at the International Space Station and served as lead spacewalker on two spacewalks.

Stephanie Wilson is the most senior astronaut on this list. The 56-year-old was selected to be an astronaut more than a quarter century ago in the class of 1996. Wilson served as a mission specialist on three Space Shuttle flights, including the first flight after the 2003 Columbia disaster, which killed seven astronauts.

The final seat on the Artemis II crew will be filled by a Canadian, and Jeremy Hansen is the most buzzed about astronaut with the Canadian Space Agency. Hansen was selected to be an astronaut almost 14 years ago, but he’s still waiting for his first flight assignment. The 47-year-old fighter pilot recently became the first Canadian to be put in charge of training for a new class of NASA astronauts.

All eight astronauts on CNN’s list of top contenders are highly qualified overachievers in the prime of their careers. But sometimes the deciding factor can come down to something frustratingly small.

“The problem is it can be influenced by trivial things, like what size spacesuit you wear. If there is only a medium and a large and you need the extra-large, you’re screwed. You’re not going to get assigned to the mission,” said Reisman, the former astronaut and veteran of three spacewalks. “It can be crazy, little things that dictate how it all comes out and it’s not always the most equitable or transparent process.”

Typically, NASA also strives for a professionally diverse crew with a healthy blend of rookies and veterans, aiming for a mix of military pilots and citizen scientists — doctors, engineers, astrophysicists, biologists and geologists — with a range of strengths.

“Not all astronauts are created equal when it comes to how good they do the job. Not all astronauts are equally as good at doing spacewalks. Not all astronauts are equally as good at doing robotics,” Reisman said. “The standard line is, if you’re qualified, you’re qualified. If you pass the test, then it shouldn’t matter. But when you have really tricky missions, it does matter, and you do want to put your best team forward.”

That is especially true for the crew of Artemis II, which will be riding on a rocket that’s only had one successful test flight.

As secretive as the crew selection process is for Artemis, it used to be even more confusing. That was especially true during the early days of the Space Shuttle program when, for the first and only time in NASA’s history, a non-astronaut had near total control over who flied and who stayed behind on Earth: George Abbey.

“George didn’t operate by committee any more than Josef Stalin had. His was the only voice that counted,” wrote Mullane, the retired astronaut, in his memoir, “Riding Rockets,” about the former director of the Johnson Space Center. “Everything about the most important aspect of our career — flight assignments — was as unknown to us as the dark matter of space was to astrophysicists.”

By the time former NASA astronaut Scott Kelly, who famously spent a year in space, was selected in 1996, the power had shifted back to the chief astronaut. Kelly described the flight assignment process as still “shrouded in mystery,” though he did recall a push toward more transparency by then-Chief of the Astronaut Office Bob Cabana, the current associate administrator of NASA.

“Bob put a big board in his office. He had all the shuttle flights lined up and certain people’s names would be penciled in next to them,” Kelly said. “Reid (Wiseman) did something similar. He was more of an open book. He would tell people what he was thinking.”

Now, Wiseman is on the other side, waiting along with every other active astronaut for the announcement of a lifetime, which the NASA administrator said would come “later in the spring.”

For those who don’t make the cut, Artemis is far from the only game in town. NASA astronauts are currently training and flying to the International Space Station for long-duration spaceflights on the SpaceX Crew Dragon and Russia’s Soyuz spacecraft. A third option, Boeing’s Starliner, is slated to fly astronauts for the first time this spring. The expectation is that every active astronaut will eventually be assigned to a flight. But only eight will get to fly to the moon on either Artemis II or Artemis III.

“This is a special and unique opportunity and, frankly, I’m going to be super jealous of whoever they pick,” Reisman said.

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Surgeon General says 13 is ‘too early’ to join social media



CNN
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US Surgeon General Vivek Murthy says he believes 13 is too young for children to be on social media platforms, because although sites allow children of that age to join, kids are still “developing their identity.”

Meta, Twitter, and a host of other social media giants currently allow 13-year-olds to join their platforms.

“I, personally, based on the data I’ve seen, believe that 13 is too early … It’s a time where it’s really important for us to be thoughtful about what’s going into how they think about their own self-worth and their relationships and the skewed and often distorted environment of social media often does a disservice to many of those children,” Murthy said on “CNN Newsroom.”

The number of teenagers on social media has sparked alarm among medical professionals, who point to a growing body of research about the harm such platforms can cause adolescents.

Murthy acknowledged the difficulties of keeping children off these platforms given their popularity, but suggested parents can find success by presenting a united front.

“If parents can band together and say you know, as a group, we’re not going to allow our kids to use social media until 16 or 17 or 18 or whatever age they choose, that’s a much more effective strategy in making sure your kids don’t get exposed to harm early,” he told CNN.

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New research suggests habitually checking social media can alter the brain chemistry of adolescents.

According to a study published this month in JAMA Pediatrics, students who checked social media more regularly displayed greater neural sensitivity in certain parts of their brains, making their brains more sensitive to social consequences over time.

Psychiatrists like Dr. Adriana Stacey have pointed to this phenomenon for years. Stacey, who works primarily with teenagers and college students, previously told CNN using social media releases a “dopamine dump” in the brain.

“When we do things that are addictive like use cocaine or use smartphones, our brains release a lot of dopamine at once. It tells our brains to keep using that,” she said. “For teenagers in particular, this part of their brain is actually hyperactive compared to adults. They can’t get motivated to do anything else.”

Recent studies demonstrate other ways excessive screen time can impact brain development. In young children, for example, excessive screen time was significantly associated with poorer emerging literacy skills and ability to use expressive language.

Democratic Sen. Chris Murphy, who recently published an op-ed in the Bulwark about loneliness and mental health, echoed the surgeon general’s concerns about social media. “We have lost something as a society, as so much of our life has turned into screen-to-screen communication, it just doesn’t give you the same sense of value and the same sense of satisfaction as talking to somebody or seeing someone,” Murphy told CNN in an interview alongside Murthy.

For both Murphy and Murthy, the issue of social media addiction is personal. Both men are fathers – Murphy to teenagers and Murthy to young children. “It’s not coincidental that Dr. Murthy and I are probably talking more about this issue of loneliness more than others in public life,” Murphy told CNN. “I look at this through the prism of my 14-year-old and my 11-year-old.”

As a country, Murphy explained, the U.S. is not powerless in the face of Big Tech. Lawmakers could make different decisions about limiting young kids from social media and incentivizing companies to make algorithms less addictive.

The surgeon general similarly addressed addictive algorithms, explaining pitting adolescents against Big Tech is “just not a fair fight.” He told CNN, “You have some of the best designers and product developers in the world who have designed these products to make sure people are maximizing the amount of time they spend on these platforms. And if we tell a child, use the force of your willpower to control how much time you’re spending, you’re pitting a child against the world’s greatest product designers.”

Despite the hurdles facing parents and kids, Murphy struck a note of optimism about the future of social media.

“None of this is out of our control. When we had dangerous vehicles on the road, we passed laws to make those vehicles less dangerous,” he told CNN. “We should make decisions to make [social media] a healthier experience that would make kids feel better about themselves and less alone.”

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Weight loss surgery extends lives, study finds



CNN
 — 

Weight loss surgery reduces the risk of premature death, especially from such obesity-related conditions as cancer, diabetes and heart disease, according to a new 40-year study of nearly 22,000 people who had bariatric surgery in Utah.

Compared with those of similar weight, people who underwent one of four types of weight loss surgery were 16% less likely to die from any cause, the study found. The drop in deaths from diseases triggered by obesity, such as heart disease, cancer and diabetes, was even more dramatic.

“Deaths from cardiovascular disease decreased by 29%, while deaths from various cancers decreased by 43%, which is pretty impressive,” said lead author Ted Adams, an adjunct associate professor in nutrition and integrative physiology at the University of Utah’s School of Medicine.

“There was also a huge percentage drop — a 72% decline — in deaths related to diabetes in people who had surgery compared to those who did not,” he said. One significant downside: The study also found younger people who had the surgery were at higher risk for suicide.

The study, published Wednesday in the journal Obesity, reinforces similar findings from earlier research, including a 10-year study in Sweden that found significant reductions in premature deaths, said Dr. Eduardo Grunvald, a professor of medicine and medical director of the weight management program at the University of California San Diego Health.

The Swedish study also found a significant number of people were in remission from diabetes at both two years and 10 years after surgery.

“This new research from Utah is more evidence that people who undergo these procedures have positive, beneficial long-term outcomes,” said Grunvald, who coauthored the American Gastroenterological Association’s new guidelines on obesity treatment.

The association strongly recommends patients with obesity use recently approved weight loss medications or surgery paired with lifestyle changes.

“And the key for patients is to know that changing your diet becomes more natural, more easy to do after you have bariatric surgery or take the new weight loss medications,” said Grunvald, who was not involved in the Utah study.

“While we don’t yet fully understand why, these interventions actually change the chemistry in your brain, making it much easier to change your diet afterwards.”

Despite the benefits though, only 2% of patients who are eligible for bariatric surgery ever get it, often due to the stigma about obesity, said Dr. Caroline Apovian, a professor of medicine at Harvard Medical School and codirector of the Center for Weight Management and Wellness at Brigham and Women’s Hospital in Boston. Apovian was the lead author for the Endocrine Society’s clinical practice guidelines for the pharmacological management of obesity.

Insurance carriers typically cover the cost of surgery for people over 18 with a body mass index of 40 or higher, or a BMI of 35 if the patient also has a related condition such as diabetes or high blood pressure, she said.

“I see patients with a BMI of 50, and invariably I will say, ‘You’re a candidate for everything — medication, diet, exercise and surgery.’ And many tell me, ‘Don’t talk to me about surgery. I don’t want it.’ They don’t want a surgical solution to what society has told them is a failure of willpower,” she said.

“We don’t torture people who have heart disease: ‘Oh, it’s because you ate all that fast food.’ We don’t torture people with diabetes: ‘Oh, it’s because you ate all that cake.’ We tell them they have a disease, and we treat it. Obesity is a disease, too, yet we torture people with obesity by telling them it’s their fault.”

Most of the people who choose bariatric surgery — around 80% — are women, Adams said. One of the strengths of the new study, he said, was the inclusion of men who had undergone the procedure.

“For all-causes of death, the mortality was reduced by 14% for females and by 21% for males,” Adams said. In addition, deaths from related causes, such as heart attack, cancer and diabetes, was 24% lower for females and 22% lower for males who underwent surgery compared with those who did not, he said.

Four types of surgery performed between 1982 and 2018 were examined in the study: gastric bypass, gastric banding, gastric sleeve and duodenal switch.

Gastric bypass, developed in the late 1960s, creates a small pouch near the top of the stomach. A part of the small intestine is brought up and attached to that point, bypassing most of the stomach and the duodenum, the first part of the small intestine.

In gastric banding, an elastic band that can be tightened or loosened is placed around the top portion of the stomach, thus restricting the volume of food entering the stomach cavity. Because gastric banding is not as successful in creating long-term weight loss, the procedure “is not as popular today,” Adams said.

“The gastric sleeve is a procedure where essentially about two-thirds of the stomach is removed laparoscopically,” he said. “It takes less time to perform, and food still passes through the much-smaller stomach. It’s become a very popular option.”

The duodenal switch is typically reserved for patients who have a high BMI, Adams added. It’s a complicated procedure that combines a sleeve gastrectomy with an intestinal bypass, and is effective for type 2 diabetes, according to the Cleveland Clinic.

One alarming finding of the new study was a 2.4% increase in deaths by suicide, primarily among people who had bariatric surgery between the ages of 18 and 34.

“That’s because they are told that life is going to be great after surgery or medication,” said Joann Hendelman, clinical director of the National Alliance for Eating Disorders, a nonprofit advocacy group.

“All you have to do is lose weight, and people are going to want to hang out with you, people will want to be your friend, and your anxiety and depression are going to be gone,” she said. “But that’s not reality.”

In addition, there are postoperative risks and side effects associated with bariatric surgery, such as nausea, vomiting, alcoholism, a potential failure to lose weight or even weight gain, said Susan Vibbert, an advocate at Project HEAL, which provides help for people struggling with eating disorders.

“How are we defining health in these scenarios? And is there another intervention — a weight neutral intervention?” Vibbert asked.

Past research has also shown an association between suicide risk and bariatric surgery, Grunvald said, but studies on the topic are not always able to determine a patient’s mental history.

“Did the person opt for surgery because they had some unrealistic expectations or underlying psychological disorders that were not resolved after the surgery? Or is this a direct effect somehow of bariatric surgery? We can’t answer that for sure,” he said.

Intensive presurgery counseling is typically required for all who undergo the procedure, but it may not be enough, Apovian said. She lost her first bariatric surgery patient to suicide.

“She was older, in her 40s. She had surgery and lost 150 pounds. And then she put herself in front of a bus and died because she had underlying bipolar disorder she had been self-medicating with food,” Apovian said. “We as a society use a lot of food to hide trauma. What we need in this country is more psychological counseling for everybody, not just for people who undergo bariatric surgery.”

Managing weight is a unique process for each person, a mixture of genetics, culture, environment, social stigma and personal health, experts say. There is no one solution for all.

“First, we as a society must consider obesity as a disease, as a biological problem, not as a moral failing,” Grunvald said. “That’s my first piece of advice.

“And if you believe your life is going to benefit from treatment, then consider evidence-based treatment, which studies show are surgery or medications, if you haven’t been able to successfully do it with lifestyle changes alone.”

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