
Blue Zones photographer talks healthy lifestyle challenges
We all want to know the secret to living a longer, healthier life, but actually adopting a better lifestyle comes with its own challenges.
State of play: David McLain, the photographer behind the global health movement the Blue Zones Project, is speaking at the Civic Center on Thursday evening.
The big picture: Over the past two decades, National Geographic journalist Dan Buettner has identified five communities with the longest-living people.
He took lessons learned from centenarians (people older than 100) there and established the "Blue Zone" model for longevity, which focuses on community change — like creating walkable neighborhoods and easy access to fresh vegetables — instead of individual behavioral change.
These centenarians and their lifestyles were photographed by McLain and published in National Geographic in 2005 — catapulting the Blue Zones lifestyle worldwide, including with a Netflix series and even a five-year initiative in Iowa.
Flashback: In 2011, then-Gov. Terry Branstad announced his goal of making Iowa the healthiest state in the U.S. through a partnership among the Blue Zones Project, Healthways, and Wellmark Blue Cross and Blue Shield, which invested $25 million into the project.
By providing health experts for selected Blue Zones communities, Branstad said the state could save $16 billion in health care costs over five years and improve Iowa's Gallup Well Being Index ranking, which was No. 16 in 2011.
But by 2016, Iowa had fallen short of that goal and had slipped to No. 19 in the ranking. By then, Wellmark's contract had ended, including its funding for the program, and most communities had dropped the initiative.
Between the lines: In 2021, Iowa ranked No. 30.
We chatted with McLain about why states like Iowa struggled to become Blue Zones and the challenges of healthy living in a post-pandemic world.
What makes it difficult for some places, like Iowa, to incorporate and execute the Blue Zones?
McLain:"It is very important to recognize the importance of incremental, smaller change. We're so unhealthy that moving the needle even a little actually does have a significant impact."
"There's a reason America's so unhealthy, and fighting that is a huge lift. Maybe he just overpromised a little, or maybe you have to overpromise a little to move things along."
What is something you learned from documenting these centenarians that people have not read or watched in the Blue Zones documentary?
McLain: "We tend to silo things in America, like, 'Oh, I'm going to change my diet.'"
"But food — the Blue Zones — it never gets disconnected from having a garden, which gives you exercise and gives you healthy food, and then it's never, usually, cooked alone, so you're cooking with other people, and you're visiting and you're chatting and you're laughing. So you're never eating alone in front of your iPhone."
Did you expect the Blue Zones concept to become so popular?
McLain: "No, I didn't. In retrospect, it's obvious, right? Who doesn't want to know how to live a longer, healthier life?"
"I always viewed my job for that story visually is to make old people aspirational. Like in Asian cultures, elder [respect] is a very real thing. It's just the way the culture is. America is like the opposite of that. Old people are invisible."
The other side: There have been questions about whether Blue Zone designations are accurate or based on poor record-keeping in communities around the world.
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USA Today
2 hours ago
- USA Today
Stinging and 'wicked' Asian needle ants are spreading across the US
Stinging and 'wicked' Asian needle ants are spreading across the US Asian needle ants have been linked to multiple cases of life-threatening reactions and the mysterious ants keep spreading. Show Caption Hide Caption See Nat Geo's photo challenge winners National Geographic wildlife filmmaker Bertie Gregory announced the winners of a photo challenge celebrating the Earth's beauty. An invasive species of stinging, carnivorous ants have been slowly spreading in about 20 states. Last year at least three cases of life-threatening anaphylactic reactions were reported in Georgia, making this little (and little-known) insect a growing problem. "Asian needle ants" will reach their yearly peak numbers in July and August, but it will still be tough to spot them, even if you get stung by one. They are so small and blend in so well that stings often occur when someone — perhaps while gardening or moving wood – unknowingly disturbs them. "Imagine somebody inserting a needle directly into your flesh," said Benoit Guénard, a professor of ecology and entomology at the University of Hong Kong who studied the ants in North Carolina. "It's a very sharp, acute pain but it's quite local." Tracking them has long been a challenge, but researchers now say the spread of the Asian needle ant shouldn't be ignored. "They're pretty widespread on the East coast," said. Daniel Suiter, a professor of urban entomology at the University of Georgia. "If you live in an area which is dominated by hardwood trees, there's a good chance there are Asian needle ants underfoot." For some, the stings can be life-threatening. For others, it's an unusual pain that can come and go for hours. That's just one of the mysteries of Brachyponera chinensis — roughly translated as "short, wicked ant from China" - though they're actually native to China, Japan and the Koreas. Hard to track, hard to kill The invasive insect was first discovered in the United states in 1932 in Decatur, Georgia, but was only recognized as a serious pest in the past two decades as it began to spread significantly throughout the southeast. Now it's found as far north as Connecticut and as far south as Florida, as well as in Wisconsin and Washington state, according to the site There are reports they have also appeared in Texas. These ants are carnivorous, seeking out prey such as flies, beetles, grasshoppers and their favorites: termites. Given their hunting habits, they don't lay down scent trails as some ants do, making it difficult to track them back to their colonies and eradicate. "Most ants are in-your-face invasive, they lay a pheromone trail to get to food. You can't miss an ant trail that's half an inch wide," said Suiter. "These remain hidden." The dark brown ants live in colonies in leaf litter, rotted logs, firewood and mulch. They often occur in residential settings, including parks, and urban areas, finding homes and under railroad ties, logs, bricks, and pavers. They can also nest in potted plants, under wood piles, and in lawns. "People are most often stung when they're working in their garden," said Theresa Dellinger, a diagnostician at the insect identification lab at Virginia Polytechnic Institute. "Nobody likes to be putting in their bedding plants and then suddenly have unexpected pain." The worker ants' bodies are about 0.2 inches long, small, dark and shiny but with lighter orange legs and antennae. "They have a long jaw and a big stinger on the business end," Dellinger said. Although they're relatively long and thin, the "needle" in their name actually comes from their Japanese name, Oo-hari-ari, which means "giant needle ant' and refers to size of their stinger, she said. It's very possible to learn to live with Asian needle ants, just as we've learned to live with bees, said Andrew Johnston, an insect diagnostician at Purdue University's Department of Entomology. "They're not aggressive, they don't swarm the way fire ants do," he said. "Wear gloves and pay attention to what you're grabbing." Because the ants like to live in moist areas and around wood, keeping loose logs and firewood up off the ground so they stay dry is one way to avoid infestations, said Suiter. And if you're sensitive to insect stings, suggests Dellinger, "carry an EpiPen." A painful, long-lasting sting Guénard has been stung by many different ant and insect species but said Asian needle ants are the only ones he knows of where the pain is very acute at first, then disappears and then can come back over and over again. "The first, initial pain lasted a few seconds. Then about five minutes later, when the pain had eased, I felt 'ouch!' as if somebody had stung me again in the same place. The pain continues to reoccur in the same place, it disappears and then comes back," said Guénard. "For me, it goes on for about two hours," he said. "But I know in some people it lasts for as much as 24 to 48 hours." In a small number of cases it can also be deadly. The sting can cause allergic reactions and in 1% of victims, the venom can result in deadly anaphylactic shock. Decades of mystery There's a lot researchers don't yet understand about why these invasive ants only began to significantly spread in the United States in the 1980s and 1990s. Native to China, Japan and Korea, the Asian needle ant was first identified in Georgia in 1932 but probably arrived here well before that. "It's very likely the ants were introduced in the early 20th century because by 1934 they were already found in three states, so clearly they hadn't just arrived," Guénard said. Because they live in dirt and mulch, Guénard speculates that they might have come into the United States in the root balls of trees being imported from Asia. What puzzles researchers is the timing of their spread. The ants remained relatively localized well into the 1970s, research shows. In 1962 a very thorough inventory of the ants of North Carolina was conducted by entomologist W. G. Carter. "He never found them," said Guénard. Then between 1991 and 2017, Asian needle ants spread across North Carolina and are now found across the state. "Something happened," Guénard said. "I could not tell you exactly what." The spread of this invasive species is causing ecological damage as they spread, research shows. Because they are predators, Asian needle ants hunt native insects that have evolved to have important roles in local ecosystems. For example, while no one wants termites in their home, in the forest they are critical part in the health of the woods. "They're very important because they help with the decomposition of dead wood and other organic matter," Guénard said. Research has also shown that local native ants are an important part of seed dispersal for some plant and tree species. If the Asian needle ants take over their territory, the seeds don't get spread. "The seeds just die rather than being dispersed," he said. As the climate warms and becomes wetter in some areas, the extent of where these ants can thrive is growing and they're expected to invade new regions. The amount of North America that could become suitable is expected to increase as much as 75% over the next 50 or so years, according to Guénard's previous research. How dangerous are Asian needle ants? Asian needle ants aren't as aggressive as fire ants and will mostly just run away when they encounter humans. However, they will defensively sting if they feel pressure, for example from someone reaching into a pile of wood, mulch or soil near their nest. The ants can pose a health risk because their venom can produce allergic reactions in some individuals. Virginia Tech encourages anyone who is allergic to bee stings to seek immediate medical attention if they begin to experience breathing problems or other allergic reactions after being stung by an Asian needle ant. A survey of people who live in an ant-habitat area of Korea found that 2.1% of those bitten experienced systemic allergic reactions, including 1.2% who went into anaphylaxis. The danger appeared to be highest in people who had experienced repeated stings over time. There is no national repository of Asian needle ant health problems, but when Guénard maintained a website about the insects while he was conducting research in North Carolina, he received reports of 21 cases of health problems, in Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee and Washington. D. C. Of those case, at least 12 individuals reported having severe allergic reactions including anaphylactic shock. The cases involved people moving logs, gardening and even while swimming, when young female ants flying to establish new colonies fell into swimming pools. The stinging events were especially frequent during the summer swarming period from April to September, with a peak in May to July. In Georgia, Suiter got three calls about cases of anaphylactic shock after Asian needle ant stings last year. "I fully expect that some people who end up in the emergency room were stung by them but didn't realize it," he said. There is concern that people who are hypersensitive to other stinging insects may be at an increased risk of anaphylaxis from Asian needle ants. Symptoms reported by the USDA can include: Skin reactions include hives, itching, and flushed or pale skin. Low blood pressure (hypotension). Constriction of the airway, wheezing, and difficulty breathing. Swollen tongue or throat. Weak and rapid pulse. Nausea, vomiting, or diarrhea. Dizziness or fainting. Psychological symptoms, such as a feeling of impending doom. Unlike stings from invasive fire ants, the sting of an Asian needle ant does not produce a blister. What can you do about Asian needle ants This particular variety of ant is more difficult to eradicate than other ant species because they don't lay pheromone trails that can be disrupted or easily used to get the ants to take poison back to their nests. Instead they use a process known as tandem carrying. "One worker ant will pick up another worker ant and drag it over to the food source to show it where it is," Dellinger said. That makes baiting them difficult, especially because their colonies – typically fairly small and flat – are hard to spot. "We suggest a protein-based bait for this species, and it can take some time for these ants to take the poison back to the colony," she said. So far there is no formalized management recommendation for the species. One study published found good luck with using bait that included extracts from termite skin. Dellinger said broad spraying isn't helpful and will actually harm other important garden species. "Try to treat the nest," she said. Management, rather than eradication, is the goal. That can include removing mulch in areas where the ants might pose a problem, elevating woodpiles so they're not damp underneath, carefully watching for colonies (which can take time) and only baiting areas where there are definitely ants. It's also not easy to identify the Asian needle ants as they look similar to other ant species. "There are a lot of ants out there," Dellinger said. "We get out the microscope." She recommended contacting the local agricultural extension if identification isn't certain. "It's a free service and they can help identify what's on your property."
Yahoo
a day ago
- Yahoo
'Love Is Blind' Alum Marshall Glaze Details Struggle with Suicidal Ideation
Warning: This story discusses suicide. If you or someone you know is in crisis, call 988 to reach the Suicide and Crisis Lifeline. You can also call the network, previously known as the National Suicide Prevention Lifeline, at 800-273-8255, text HOME to 741741 or visit for additional resources. A "Love Is Blind" alum is sharing a powerful message about mental health. Marshall Glaze, who appeared on Season 4 of the Netflix dating series, just opened up about a dark period in his life that occurred last year. While appearing on the latest episode of "Love Is Blind" alum AD Smith's "What's The Reality?" podcast, Glaze acknowledged that he experienced suicidal thoughts amid a mental health crisis. 'Last year was just very tough for me mentally, and I was going to take my own life,' he said. 'It just got to a point where, I had always been morbidly curious, but never thought about how to do it. And then, one day, I'm just down in the dumps, just crazy depressed. I feel like nothing is going right. That's what my internal monologue is telling me.' Glaze went on to explain that his internal "voices" and "darkness" kept getting "a little bit louder" and "a little bit darker." 'It just felt like the walls were just getting closer and closer and closer, and nothing — no favorite meal, no favorite movie, no favorite song — could lift me out of that. And I knew I had a problem when I was OK with, this particular time that I talked to my mom, I was OK with that being the last time I talked to her,' he recalled. Glaze, who noted that he typically talks to his mom several times a day, said he then knew something was wrong. 'I was going to do what I felt like I had to do, but I couldn't,' he said. Glaze said he decided to take a walk in his Seattle neighborhood to clear his head and said this simple act encouraged him to get help. 'I lived on a very busy street in downtown Seattle, and at any time of the day, there's buses, cars, bikes, people walking, and nobody was out there — no cars, no buses, no bikes, no people, nothing," he said. After walking around in the deserted area, Glaze returned home and had an important realization. "I (was like), 'I want to live,'" he recalled. Smith told Glaze she was happy he decided to go on a walk and get fresh perspective. In response he said, "Thank you. Me too. I'm glad I'm here." "I'm glad you're here. We're all glad you're here," she said. While opening up about his decision to go public with his mental health challenges, Glaze acknowledged that the experience helps him "heal." "I hope that someone out there can resonate with that and choose life," he said. "Someone will for sure," Smith said. This article was originally published on


National Geographic
3 days ago
- National Geographic
Koala moms make their kids eat poo. It's for their own good.
An adult koala eats a eucalyptus leaf. Joeys can't break down the toxic, fibrous plants on their own yet. Photograph By David Marks/National Geographic When it's time to feed the kids, koala moms do their doody. Then the little ones snack on it. Before you poo-poo the idea, a koala mom feeding a form of excrement to their young is a life-saving precaution called papping. 'Pap is a different type of feces than their normal feces,' says Sally Bornbusch, a research associate at the Smithsonian's National Zoo and Conservation Biology Institute. Adult koalas eat only eucalyptus leaves, which are toxic to most animals—and baby koalas, aka joeys, can't digest them yet. When they're born, koalas are less than an inch long, and they look more like a gummy bear than a koala bear. They make their way from the birth canal to mom's pouch, where they will stay and nurse for about seven months. The babies don't have the guts, so to speak, to break down those toxic and fibrous eucalyptus leaves. But pap provides joeys with the microbes, literally passed on from mom, 'to digest complex plant fiber and probably to also start detoxifying some of those nasty compounds in eucalyptus,' Bornbusch says. Joeys instinctively know they're ready to add pap to their diet, says Chris Massaro, senior vice president and chief zoological officer at ZooTampa at Lowry Park, in Florida, who helped welcome koala baby Sydney in 2019. Pap is 'a mushy substance that's produced in the cecum,' a part of the digestive tract beginning at the large intestine, he says. That mushiness makes it different in appearance from regular feces, which is pellet-like. At around 5 to 6 months old, when they're still in the pouch, the joey is ready and starts initiating pap production. Like urine and feces, pap comes out of the mother koala's cloaca, a multipurpose opening for the urogenital and digestive tracts, as captured on film recently in National Geographic's new Underdogs series. 'They joey will kind of hang down and stimulate down by the cloaca to get this pap out,' Massaro says. In short, koala moms are the world's cutest soft-serve machines. Within a few weeks, joeys start to experiment with eating leaves on their own, but will continue to nurse until they're one year old. Have your poo and eat it too Bornbusch compares pap to the cecotropes consumed by both adult and baby rabbits, which allows them 'to get a second crack at nutrition from their diet that potentially was missed during the first run at digestion,' says Erin Kendrick, clinical nutritionist at the Smithsonian Conservation Biology Institute. Many animals, including guinea pigs, capybaras, and naked mole rats all produce and eat cecotropes. 'They get sick and sometimes even die if they don't eat the soft feces,' Bornbusch says. 'It's part of their natural ecology.' Bornbusch and Kendrick's 2024 paper in the journal Animal Behaviour notes there are more than 150 species that consume their own regular fecal matter 'at some point in their lives for nutritional reasons,' Bornbusch says, including juvenile animals, such as ostriches, iguanas, and African elephants. Adult animals who routinely order their meal 'to go' include western lowland gorillas, leopard tortoises, and of course dung beetles, whose common name comes from their propensity to eat other species' feces, which provides them with important nutrients and, remarkably, helps with waste management and keeping flying populations under control. Thankfully, there are always some folks that will go for seconds. Underdogs will premiere on National Geographic June 15th and stream the next day on Disney+ and Hulu. Please check local listings.