Posts Tagged ‘public health’
“I’m having a magenta day. Not just red, but magenta!”*…
Your correspondent is still on the road; regular service resumes on or around May 6. Meantime, a colorful update…
Forget about red hot. A new color-coded heat warning system relies on magenta to alert Americans to the most dangerous conditions they may see this summer.
The National Weather Service and the Centers for Disease Control and Prevention on Monday — Earth Day — presented a new online heat risk system that combines meteorological and medical risk factors with a seven-day forecast that’s simplified and color-coded for a warming world of worsening heat waves.
“For the first time we’ll be able to know how hot is too hot for health and not just for today but for coming weeks,” Dr. Ari Bernstein, director of the National Center for Environmental Health, said at a joint news conference by government health and weather agencies.
Magenta is the worst and deadliest of five heat threat categories, hitting everybody with what the agencies are calling “rare and/or long-duration extreme heat with little to no overnight relief.” It’s a step higher than red, considered a major risk, which hurts anyone without adequate cooling and hydration and has impacts reverberating through the health care system and some industries. Red is used when a day falls within the top 5% hottest in a particular location for a particular date; when other factors come into play, the alert level may bump even higher to magenta, weather service officials said.
On the other hand, pale green is little to no risk. Yellow is minor risk, mostly to the very young, old, sick and pregnant. Orange is moderate risk, mostly hurting people who are sensitive to heat, especially those without cooling, such as the homeless.
“When red-hot isn’t enough: New government heat risk tool sets magenta as most dangerous level,” from @AP.
* Stephen King, Needful Things
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As we reassess risk, we might recall that it was on this date in 1986 that Russia announced the Chernobyl nuclear disaster, two days after it happened.
“And these children that you spit on / “As they try to change their worlds / Are immune to your consultations. / They’re quite aware of what they’re going through.”*…
From our friends at The Pudding— specifically, from Alvin Chang— a thorough (and illuminating and bracing) look at how the conditions in which our young are raised have everything to do with how their lives unfold…
In this story, we’ll follow hundreds of teenagers for the next 24 years, when they’ll be in their late-30s. They’re among the thousands of kids who are part of the National Longitudinal Survey of Youth. This means researchers have followed them since their teenage years to the present day – and beyond.
As Matt Muir observes in his invaluable Web Curios…
… Very North America-centric in terms of the data it’s drawing on, but wherever you are in the world the themes that it speaks to will apply – drawing on data about the life experiences of young people tracked by US statisticians….
As you scroll you see visual representations of the proportion of kids in each agegroup coterie who will experience ‘significant’ life events, from crime to poverty and beyond, and how those life events will go on to impact their academic prospects and, eventually, their life prospects – none of this should be surprising, but it’s a hugely-effective way of communicating the long-term impacts of relatively small differences in early-stage life across a demographic swathe…
Data visualization at its best and most compelling: “This Is a Teenager,” from @alv9n in @puddingviz via @Matt_Muir.
* David Bowie, “Changes”
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As we analyze adolescence, we might recall that it was on this date in 1961 that the Cleftones, a group of teens who had formed a vocal group a 3 years earlier in high school, released “Heart and Soul” (a rearrangement of the 1938 standard); it reached #18 on the pop chart and #10 on the R&B chart and was later used in the 1973 movie American Graffiti.
Then fifteen-year-old Duane Hitchings, who went on to win a Grammy award for his work on the Flashdance soundtrack in 1984, played keyboards on the track– his first professional gig. In an interview with Rock United, he recalls that the recording session was cut short when singer Pat Spann, who was dating drummer Panama Francis, was caught in a compromising position with the guitarist. “That ended the session. So the last track we recorded was the record.”
“Without debatement further, more or less, / He should the bearers put to sudden death, / Not shriving time allow’d.”*…
“Cell suicide” is inherently self-destructive, and yet it’s an essential and productive process in complex organisms. How did cells evolve a process to end their own lives? As Veronique Greenwood reports, recent research suggests it first arose, first arose billions of years ago… but why?…
It can be hard to tell, at first, when a cell is on the verge of self-destruction.
It appears to be going about its usual business, transcribing genes and making proteins. The powerhouse organelles called mitochondria are dutifully churning out energy. But then a mitochondrion receives a signal, and its typically placid proteins join forces to form a death machine.
They slice through the cell with breathtaking thoroughness. In a matter of hours, all that the cell had built lies in ruins. A few bubbles of membrane are all that remains.
“It’s really amazing how fast, how organized it is,” said Aurora Nedelcu, an evolutionary biologist at the University of New Brunswick who has studied the process in algae.
Apoptosis, as this process is known, seems as unlikely as it is violent. And yet some cells undergo this devastating but predictable series of steps to kill themselves on purpose. When biologists first observed it, they were shocked to find self-induced death among living, striving organisms. And although it turned out that apoptosis is a vital creative force for many multicellular creatures, to a given cell it is utterly ruinous. How could a behavior that results in a cell’s sudden death evolve, let alone persist?…
The story in full: “Cellular Self-Destruction May Be Ancient. But Why?“, from @vero_greenwood in @QuantaMagazine.
* Shakespeare, Hamlet (Act 5, Scene 2)
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As we appreciate apoptosis, we might send healthy birthday greetings to Lillian Wald; she was born on this date in 1867. A nurse, humanitarian, political reformer, and author, she was instrumental in establishing a nationwide system of nurses in public schools. Known as “the Angel of Henry Street” (for her founding and running of the Henry Street Settlement in New York City), she directed the Henry Street Visiting Nurse Service, while at the same time tirelessly opposing political and social corruption. She helped initiate the revision of child labor laws, improved housing conditions in tenement districts, drove the enactment of pure food laws, championed and improved education for the mentally handicapped, and led the passage of enlightened immigration regulations.
“I discovered that if one looks a little closer at this beautiful world, there are always red ants underneath”*…
E.O. Wilson once observed that “Ants have the most complicated social organization on earth next to humans.” John Whitfield explores the way in which, over the past four centuries, quadrillions of ants have created a strange and turbulent global society that shadows our own…
It is a familiar story: a small group of animals living in a wooded grassland begin, against all odds, to populate Earth. At first, they occupy a specific ecological place in the landscape, kept in check by other species. Then something changes. The animals find a way to travel to new places. They learn to cope with unpredictability. They adapt to new kinds of food and shelter. They are clever. And they are aggressive.
In the new places, the old limits are missing. As their population grows and their reach expands, the animals lay claim to more territories, reshaping the relationships in each new landscape by eliminating some species and nurturing others. Over time, they create the largest animal societies, in terms of numbers of individuals, that the planet has ever known. And at the borders of those societies, they fight the most destructive within-species conflicts, in terms of individual fatalities, that the planet has ever known.
This might sound like our story: the story of a hominin species, living in tropical Africa a few million years ago, becoming global. Instead, it is the story of a group of ant species, living in Central and South America a few hundred years ago, who spread across the planet by weaving themselves into European networks of exploration, trade, colonisation and war – some even stowed away on the 16th-century Spanish galleons that carried silver across the Pacific from Acapulco to Manila. During the past four centuries, these animals have globalised their societies alongside our own.
It is tempting to look for parallels with human empires. Perhaps it is impossible not to see rhymes between the natural and human worlds, and as a science journalist I’ve contributed more than my share. But just because words rhyme, it doesn’t mean their definitions align. Global ant societies are not simply echoes of human struggles for power. They are something new in the world, existing at a scale we can measure but struggle to grasp: there are roughly 200,000 times more ants on our planet than the 100 billion stars in the Milky Way…
…
The more I learn, the more I am struck by the ants’ strangeness rather than their similarities with human society. There is another way to be a globalised society – one that is utterly unlike our own. I am not even sure we have the language to convey, for example, a colony’s ability to take bits of information from thousands of tiny brains and turn it into a distributed, constantly updated picture of their world. Even ‘smell’ seems a feeble word to describe the ability of ants’ antennae to read chemicals on the air and on each other. How can we imagine a life where sight goes almost unused and scent forms the primary channel of information, where chemical signals show the way to food, or mobilise a response to threats, or distinguish queens from workers and the living from the dead?
As our world turns alien, trying to think like an alien will be a better route to finding the imagination and humility needed to keep up with the changes than looking for ways in which other species are like us. But trying to think like an ant, rather than thinking about how ants are like us, is not to say that I welcome our unicolonial insect underlords. Calamities follow in the wake of globalised ant societies. Most troubling among these is the way that unicolonial species can overwhelmingly alter ecological diversity when they arrive somewhere new. Unicolonial ants can turn a patchwork of colonies created by different ant species into a landscape dominated by a single group. As a result, textured and complex ecological communities become simpler, less diverse and, crucially, less different to each other. This is not just a process; it is an era. The current period in which a relatively small number of super-spreading animals and plants expands across Earth is sometimes called the Homogecene. It’s not a cheering word, presaging an environment that favours the most pestilential animals, plants and microbes. Unicolonial ants contribute to a more homogenous future, but they also speak to life’s ability to escape our grasp, regardless of how we might try to order and exploit the world. And there’s something hopeful about that, for the planet, if not for us.
The scale and spread of ant societies is a reminder that humans should not confuse impact with control. We may be able to change our environment, but we’re almost powerless when it comes to manipulating our world exactly how we want. The global society of ants reminds us that we cannot know how other species will respond to our reshaping of the world, only that they will…
Bracing: “Ant geopolitics,” from @gentraso in @aeonmag.
* David Lynch
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As we investigate insects, we might spare a thought for Sara Josephine Baker; she died on this date in 1945. A physician, she was a pioneer in public health and child welfare in the United States in her roles as assistant to the Commissioner for Public Health of New York City, and later, head of the city’s Department of Health in “Hell’s Kitchen” for 25 years. Convinced of the value of well-baby care and the prevention of disease, in 1908 she founded the Bureau of Child Hygiene– and decreased the death rate by 1200 from the previous year. Her work made the New York City infant mortality rate the lowest in the USA or Europe at the time. She set up free milk clinics, licensed midwives, and taught the use of silver nitrate to prevent blindness in newborns.
Baker is also remembered as the public health official who (twice) tracked down “Typhoid Mary.”
“Just because you’re paranoid doesn’t mean they aren’t after you”*…
The wages of anxiety…
A large Swedish study has uncovered a paradox about people diagnosed with an excessive fear of serious illness: They tend to die earlier than people who aren’t hypervigilant about health concerns.
Hypochondriasis, now called illness anxiety disorder, is a rare condition with symptoms that go beyond average health worries. People with the disorder are unable to shake their fears despite normal physical exams and lab tests. Some may change doctors repeatedly. Others may avoid medical care…
The researchers found that people with the diagnosis have an increased risk of death from both natural and unnatural causes, particularly suicide. Chronic stress and its impact on the body could explain some of the difference, the authors wrote…
“In hypochondria paradox, Swedish study finds a higher death rate in those who fear serious illness,” by @CarlaKJohnson in @AP.
* Joseph Heller, Catch-22
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As we stew over self-fulfilling prophecies, we might recall that it was on this date in 2021 that Paul E. Marek, et al. published a paper in Scientific Reports reporting the discovery of the first millipede species that lived up to its name. Although called millipedes, meaning 1000 legs, never before had a species been found with truly that many legs.
In fact, the new species, Eumillipes persephone has 1306 legs. This diminutive animal has a greatly elongated, thread-like body (0.95 mm wide, 95.7 mm long) with 330 segments, a cone-shaped head with enormous antennae, and a beak for feeding. It was found 60 m below ground in a drill hole created for mineral exploration in Western Australia. Living as a troglobite, it lacks eyes and pigmentation.
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