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Tag: chronic conditions

  • Pandemic Babies’ Microbiomes Are Bound to Be Different

    Pandemic Babies’ Microbiomes Are Bound to Be Different

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    In the spring of 2021, Brett Finlay, a microbiologist at the University of British Columbia, offered the world a bold and worrying prediction. “My guess is that five years from now we are going to see a bolus of kids with asthma and obesity,” he told Wired. Those children, he said, would be “the COVID kids”: those born just before or during the height of the crisis, when the coronavirus was everywhere, and we cleaned everything because we didn’t want it to be.

    Finlay’s forecast isn’t unfounded. As James Hamblin wrote in The Atlantic last year, our health relies on a constant discourse with trillions of microbes that live on or inside our bodies. The members of the so-called microbiome are crucial for digesting our food, training the immune system, even greasing the wheels of cognitive function; there does not seem to be a bodily system that these tiny tenants do not in some way affect. These microbe-human dialogues begin in infancy, and the first three or so years of life are absolutely pivotal: Bacteria must colonize babies, then the two parties need to get into physiological sync. Major disruptions during this time “can throw the system out of whack,” says Katherine Amato, a biological anthropologist at Northwestern University, and raise a kid’s risk of developing allergies, asthma, obesity, and other chronic conditions later in life.

    The earlier, more intense, and more prolonged the interruptions, the worse. Infants who receive heavy courses of antibiotics—which can nuke microbial diversity—are at greater risk of developing such problems; the same is roughly true for babies who are born by C-section, who formula feed, or who grow up in nature-poor environments. If pandemic-era mitigations re-create even an echo of those effects, that could spell trouble for a whole lot of little kids who may have lost out on beneficial microbes in the ongoing effort to keep nasty ones at bay.

    More than a year and a half after Finlay’s original prediction, children are back in day care and school. People no longer keep their distance or avoid big crowds. Even hygiene theater is (mostly) on the wane. And if the wave of respiratory viral illness now slamming much of the Northern Hemisphere is any indication, microbes are once again swirling between tiny hands and mouths. But for the circa-COVID kids, the specter of 2026 and Finlay’s anticipated chronic-illness “bump” still looms—and it’ll be a good while yet before researchers have clarity on just how much of a difference those months of relative microbial emptiness truly made.

    Read: A year without germs

    For now, “we are in the realm of speculation,” says Maria Gloria Dominguez Bello, a microbiologist at Rutgers. Scientists don’t understand how, or even which, behaviors may affect the composition of our inner flora throughout our life span. Chronic illnesses such as obesity and asthma also take time to manifest. There’s not yet evidence that they’re on the rise among children, and even if they were, researchers wouldn’t expect to see the signal for at least a couple of years, perhaps more.

    Finlay, for one, stands by his original prediction that the pandemic will bring a net microbiome negative. “We underwent a massive societal shift,” he told me. “I am sure we will see an effect.” And he is not the only one who thinks so. “I think it’s almost inevitable that there has been an impact,” says Graham Rook, a medical microbiologist at University College London. If the middle of this decade passes without incident, Rook told me, “I would be very surprised.” Other researchers, though, aren’t so sure. “I don’t think we have doomed a generation of kids,” says Melissa Manus, an anthropologist and microbiome researcher at the University of Manitoba. A few scientists are even pondering whether the pandemic’s ripple effects may have buoyed the microbiomes of the COVID kids. Martin Blaser, a microbiologist at Rutgers University, told me that, “with any luck,” rates of asthma and obesity might even dip in the next few years.

    When it comes to the pandemic’s potential fallout, researchers agree on just one thing: COVID babies undoubtedly had an unusual infancy; on average, their microbiomes are bound to look quite different. Different, though, isn’t necessarily bad. “It’s not like there is one golden microbiome,” says Efrem Lim, a microbiologist at Arizona State University. Take Liz Johnson’s sons, born in March 2018, August 2020, and March 2022. All three were born vaginally, in the same hospital, with the assistance of the same midwife; all of them then breastfed; and none of them has undergone an early, concerning antibiotic course. And still, “they all started off with different microbiomes,” she told me. (As a microbiome researcher at Cornell focused on infant nutrition, Johnson can check.)

    That’s probably totally fine. Across the human population, microbiomes are known to vary wildly: People can carry hundreds of bacterial species on and inside their bodies, with potentially zero overlap from one individual to the next. Bacterial communities aren’t unlike recipes—if you don’t have one ingredient on hand, another can usually take its place.

    Johnson’s middle son, Lucas, had a starkly different birth experience from that of his older brother—even, in many ways, from that of his younger brother. Lucas was born into a delivery room full of masked faces. In the days after his arrival, no family members came to visit him in the hospital. And although his brothers spent several of their early months jet-setting all around the world with their mother for work trips, Lucas stayed put. “Hardly anybody even knew he was born,” Johnson told me. But throughout his first two years, Lucas still breastfed and had plenty of contact with his family at home, as well as with other kids at day care; he romped in green spaces galore. Yet Johnson and others can’t say, precisely, whether all of that outweighs the sanitariness and the uncrowdedness of Lucas’s earliest days. There would have been a cost to both overcaution and under-caution, “so we just tried to balance everything,” Johnson said. When it comes down to it, scientists just don’t know how much microbial exposure constitutes enough.

    Read: Pregnant? Breastfeeding? The vaccine might protect you and your baby

    Among COVID babies, microbiome mileage will probably vary, depending on what decisions their parents made at the height of the pandemic—which itself hinges on the sorts of financial and social resources they had. Amato worries most about the families that may have packaged a bunch of sanitizing behaviors together with more established cullers of microbiome diversity: C-sections, formula-feeding, and antibiotic use. Meghan Azad, an infant-health researcher at the University of Manitoba, told me that some new parents might have found it far tougher to breastfeed during the pandemic’s worst—a time when in-person counseling resources were harder to access, and employment was in flux. Chronically poor diets and stress, which many people experienced these past few years, can also chip away at microbiome health.

    Part of the problem is that many of these risk factors, Rook told me, will disproportionately coalesce among people of lower socioeconomic status, who already tend to have less diverse microbiomes. “I worry this will further increase the health disparity between the rich and the poor,” he said. Even SARS-CoV-2 infections themselves, which have continued to concentrate among essential workers and in crowded living settings, appear to alter the microbiome—a shift that may be temporary in adults, but potentially less so in infants, whose microbiomes haven’t yet matured into a stable state.

    Many families exist in a gray zone. Maybe they bleached their households often, but found it easier to breastfeed and cook healthful meals while working from home. Maybe their kids weren’t mingling with tons of other toddlers at day care, but they spent much more time rolling around in the backyard, coated in their pandemic puppy’s drool. If all of those factors feed into an equation that sums up to healthy or not, scientists can’t yet do the math. They’re still figuring out how to appropriately weigh each component, and how to identify others they’ve missed.

    Even in the absence of extra outdoorsiness or dog slobber, Lim isn’t very concerned about the behavioral mitigations people picked up. We’re all “exposed to thousands of microbes all the time,” Lim, who has a 1-and-a-half-year-old daughter, told me. Some extra hand-washing, masking, and time at home is nothing compared with, say, an antibiotic blitzkrieg. Even kids who stayed pretty cloistered “were not living in a bubble.” Some of the social sacrifices kids made may even have strange silver linings. Children no longer attending day care or preschool might have skirted a whole slew of other viral infections that would otherwise have gotten them inappropriate and microbiome-damaging antibiotics prescriptions. Antibiotic use in outpatient settings dropped substantially in 2020, compared with the prior year. Stacked up against the relatively minor toll of pandemic mitigations, Blaser told me, the plus of avoiding antibiotics might just win out. When antibiotic use declines, for example, so do asthma rates.

    Finlay and others are still keeping an eye out for signals that might start to appear in the next few years. Perhaps most at risk are kids whose families went into “hyper-hygiene mode” in the first couple months of their life, when microbes are crucial for properly calibrating the immune system’s anti-pathogen alarms. Miss out on those opportunities, and our body’s defensive cells might end up mistaking enemies for allies, or vice versa, sparking particularly severe infections or autoimmune disease. Once wired into a developing child, Finlay said, such changes might be difficult to reverse, especially for the youngest of the COVID cohort. But other experts are hopeful that certain microbial losses can still be recouped through some combination of diet, outdoor play, and socialization (with people who aren’t sick)—restorative interventions that, ideally, happen as early as possible. “The sooner we fix it, the better,” Blaser said.

    Read: The pandemic broke the flu … again

    No one can choose precisely which microbes to be exposed to: Tactics that halt the transmission of known pathogens have a way of halting the transmission of benign bugs too. But context matters. It’s possible for microbe-inviting behaviors, such as outdoor play, to coexist alongside microbe-shunning tactics, such as ventilating indoor spaces when there’s a massive respiratory outbreak. The fact that we can influence microbial colonization at all is powerful. During the pandemic, mitigations that kept COVID at bay also cratered rates of flu and RSV. Now that those viruses are back, experts are pointing out that we already know how they can once again be stopped. And the choices that people made, and continue to make, to protect their families from pathogens shouldn’t be viewed as some harmful mistake, says Ariangela Kozik, a microbiologist at the University of Michigan.

    Pandemic kids can get on board with that concept too. Kozik’s now-7-year-old son was a toddler when the pandemic began; even amid society’s hygiene craze, he learned the joys of tumbling around in the dirt and playing with the family’s two dogs. “We talk about how not all germs are the same,” Kozik told me. Her son also picked up and maintained an infection-quashing habit that makes his mom proud: Every day, when he comes home from school, he makes a beeline for the sink to wash his hands. “It’s the first thing he does,” Kozik told me, “even without being asked.”

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    Katherine J. Wu

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  • Do You Really Want to Read What Your Doctor Writes About You?

    Do You Really Want to Read What Your Doctor Writes About You?

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    You may not be aware of this, but you can read everything that your doctor writes about you. Go to your patient portal online, click around until you land on notes from your past visits, and read away. This is a recent development, and a big one. Previously, you always had the right to request your medical record from your care providers—an often expensive and sometimes fruitless process—but in April 2021, a new federal rule went into effect, mandating that patients have the legal right to freely and electronically access most kinds of notes written about them by their doctors.

    If you’ve never heard of “open notes,” as this new law is informally called, you’re not the only one. Doctors say that the majority of their patients have no clue. (This certainly has been the case for all of the friends and family I’ve asked.) If you do know about the law, you likely know a lot about it. That’s typically because you’re a doctor—one who now has to navigate a new era of transparency in medicine—or you’re someone who knows a doctor, or you’re a patient who has become intricately familiar with this country’s health system for one reason or another.

    When open notes went into effect, the change was lauded by advocates as part of a greater push toward patient autonomy and away from medical gatekeeping. Previously, hospitals could charge up to hundreds of dollars to release records, if they released them at all. Many doctors, meanwhile, have been far from thrilled about open notes. They’ve argued that this rule will introduce more challenges than benefits for both patients and themselves. At worst, some have fretted, the law will damage people’s trust of doctors and make everyone’s lives worse.

    A year and a half in, however, open notes don’t seem to have done too much of anything. So far, they have neither revolutionized patient care nor sunk America’s medical establishment. Instead, doctors say, open notes have barely shifted the clinical experience at all. Few individual practitioners have been advertising the change, and few patients are seeking it out on their own. We’ve been left with a partially implemented system and a big unresolved question: How much, really, should you want to read what your doctor is writing about you?

    The debate about open notes can be boiled down to a matter of practicality versus idealism. You’d be hard-pressed to find anyone, doctor or otherwise, who argues against transparency for patients in principle. At the same time, few people I spoke with for this article believe that the new rule has been put in place all that smoothly. For care providers, the primary concern has been the trouble that can come with writing notes for a new audience. Notes, generally scribbled in shorthand incomprehensible to the unknowing eye, have traditionally served doctors, and doctors alone. They allowed physicians to stay up to date on their patients and share information with colleagues for input on cases.

    Some doctors told me they worry that open notes could result in distress for patients who read something they don’t understand, and that highly technical language could make something sound worse than it is. Oncology, for instance, can involve an onslaught of potentially concerning terminology. (Psychotherapy notes are exempt from the new rule.) Other doctors fear that valuable information can be lost if they go too far in de-jargonizing notes to make them patient-friendly. Or that de-jargonizing notes is simply unfeasible. “Let’s say you came to me with pain and pointed to your mid-clavicular line. I’d just put ‘MCL,’” says Aldo Peixoto, a nephrologist at Yale. “But if I were writing for you to understand, I’d have to say ‘pain on the top-right portion of her abdomen in the line that runs from the middle of her clavicle,’ and so on. Rather than writing four lines of prose, I could’ve used literally three letters.”

    If that sounds quibbling, consider the trade-offs. Less time for doctors can translate into less time for patients. Many clinicians already write notes well into the evening. Certainly, the pandemic hasn’t helped. Some doctors told me that if they find themselves in a dilemma of either writing notes in less-efficient, plain language or fielding worried patient calls and messages, exhausted practitioners will face yet another burden. And then there’s the matter of trust. Jack Resneck, the president of the American Medical Association, the nation’s largest professional group of doctors and medical students, told me that doctors can need time and space with patients to get them to open up and be receptive to guidance through difficult situations. If these patients were to see notes too soon, Resneck said, they might “immediately flee and not come back to see you.”

    As doctors have spent more time dealing with open notes, many have eased off their strongest objections. Some, including Resneck and the AMA, have warmed up to the new rule as certain exceptions have been granted, such as allowing doctors whose patients have parents or partners with access to their notes to omit certain details from their write-ups for privacy reasons. Other physicians seem to be coming to a somewhat awkward realization: On a practical level, many concerns about how this change affects patients are irrelevant, because most patients don’t yet know they have instant access to their notes in the first place. Every doctor I spoke with for this story told me that their patients were largely unaware. Many doctors and hospitals are not going out of their way to inform people about the new rule, so unless patients are particularly on top of shifting rules within our convoluted health-care system, they’re unlikely to encounter the notes on their own. Kerin Adelson, an oncologist at Yale, admitted she didn’t know how to find notes in her own patient portal. She spent several minutes with me on the phone fumbling through different tabs to locate them.

    Fans of open notes are frustrated that there is not a greater push for awareness. Even acknowledging that the new system has its shortcomings, many argue that the only way to make things better is to get people invested in the access they’ve recently been granted. Lydia Dugdale, a primary-care doctor at Columbia University, worries about ensuring equity. “Things like socioeconomic status, education, literacy: All of those issues affect the degree to which any given patient is going to want to read and correct and interrogate his or her health record,” she told me. Tom Delbanco, a Harvard doctor and one of the co-founders of OpenNotes, an initiative that spearheaded the push for access to doctors’ notes in the U.S., believes that the effort required to refrain from using “bad words” in notes is minor, and that it shouldn’t make any significant demands on clinicians’ schedules. Doctors who are now taking more time to write notes because of the change, he told me, “probably ought to because they’ve been writing lousy notes.”

    Open notes can be valuable for people with chronic conditions and their caregivers, who need to stay in the know. Liz Salmi, the communications and patient-initiatives director at OpenNotes, told me about pulling her full medical record eight years into dealing with brain cancer, before notes were easily and freely available. The document was 4,839 pages. To get a PDF, she said, she had to pay $15 for each DVD it was uploaded to, and her records spanned multiple discs. But the information was worth it: Having access to the record gave Salmi a way to remember all of the crucial bits of information she’d gotten piecemeal from various doctors.

    The fact that many people have no idea open notes exist doesn’t change the deeply personal questions at stake in the debate about whether the notes do more good or harm—questions that everyone must confront in one way or another in dealing with America’s medical system, whether or not they fully realize it. How much information do you truly want about your health, and how much do you trust your doctor to deliver it to you? What is a doctor’s role in informing people about their health?

    Open notes are only part of this conversation. The new law also requires that test results be made immediately available to patients, meaning that patients might see their health information before their physician does. Although this is fine for the majority of tests, problems arise when results are harbingers of more complex, or just bad, news. Doctors I spoke with shared that some of their patients have suffered trauma from learning about their melanoma or pancreatic cancer or their child’s leukemia from an electronic message in the middle of the night, with no doctor to call and talk through the seriousness of that result with. This was the case for Tara Daniels, a digital-marketing consultant who lives near Boston. She’s had leukemia three times, and learned about the third via a late-night notification from her patient portal. Daniels appreciates the convenience of open notes, which help her keep track of her interactions with various doctors. But, she told me, when it comes to instant results, “I still hold a lot of resentment over the fact that I found out from test results, that I had to figure it out myself, before my doctor was able to tell me.”

    As Americans continue to age, get sick, and navigate the health-care system, many of us may become more invested in the idea of open notes. Until they play a more widespread role in people’s lives, however, the most pressing question about whether you truly want instant access to all your medical information might be how it affects your doctor’s life. Many physicians have come around to open notes, or at least have realized that allowing patients to see what has been written about them is not always a huge bother. But the bigger question of just how quickly patients should be able to access medical information, and how soon doctors should be available to help patients process it, continues to plague physicians. The advent of immediate data sharing “has been a major problem in terms of physician quality of life, and that’s eroded across the board,” Peixoto told me. “Doctors don’t want to be connected all the time. They actually have their lives.”

    Where we have landed, then, is an in-between. Patients can read their doctor’s notes and view test results at any hour of the day, but we can access our providers only at certain times. There is likely room for refinement. Allowing a patient to select whether they receive test results from their physician or their portal, or see notes only after their doctor has had the opportunity to walk them through the terminology used, for instance, could make all the difference, some doctors told me. For now, it’s worth asking yourself whether you want to access your patient portal alone, or want to wait until you can get your doctor on the line.

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    Zoya Qureshi

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  • I Was Allergic to Cats. Until Suddenly, I Wasn’t.

    I Was Allergic to Cats. Until Suddenly, I Wasn’t.

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    Of all the nicknames I have for my cat Calvin—Fluffernutter, Chonk-a-Donk, Fuzzy Lumpkin, Jerky McJerkface—Bumpus Maximus may be the most apt. Every night, when I crawl into bed, Calvin hops onto my pillow, purrs, and bonks his head affectionately against mine. It’s adorable, and a little bit gross. Tiny tufts of fur jet into my nose; flecks of spittle smear onto my cheeks.

    Just shy of a decade ago, cuddling a cat this aggressively would have left me in dire straits. From early childhood through my early 20s, I nursed a serious allergy that made it impossible for me to safely interact with most felines, much less adopt them. Just a few minutes of exposure was enough to make my eyes water and clog my nasal passages with snot. Within an hour, my throat would swell and my chest would erupt in crimson hives.

    Then, sometime in the early 2010s, my misery came to an abrupt and baffling end. With no apparent interventions, my cat allergy disappeared. Stray whiffs of dander, sufficient to send my body into conniptions mere months before, couldn’t even compel my nose to twitch. My body just up and decided that the former bane of its existence was suddenly totally chill.

    What I went through is, technically speaking, “completely weird,” says Kimberly Blumenthal, an allergist and immunologist at Massachusetts General Hospital. Some allergies do naturally fade with time, but short of allergy shots, which don’t always work, “we think of cat allergy as a permanent diagnosis,” Blumenthal told me. One solution that’s often proposed? “Get rid of your cat.”

    My case is an anomaly, but its oddness is not. Although experts have a broad sense of how allergies play out in the body, far less is known about what causes them to come and go—an enigma that’s becoming more worrying as rates of allergy continue to climb. Nailing down how, when, and why these chronic conditions vanish could help researchers engineer those circumstances more often for allergy sufferers—in ways that are actually under our control, and not just by chance.

    All allergies, at their core, are molecular screwups: an immune system mistakenly flagging a harmless substance as dangerous and attacking it. In the classic version, an allergen, be it a fleck of almond or grass or dog, evokes the ire of certain immune cells, prompting them to churn out an antibody called IgE. IgE drags the allergen like a hostage over to other defensive cells and molecules to rile them up too. A blaze of inflammation-promoting signals, including histamine, end up getting released, sparking bouts of itching, redness, and swelling. Blood vessels dilate; mucus floods out in gobs. At their most extreme, these reactions get so gnarly that they can kill.

    Just about every step of this chain reaction is essential to produce a bona fide allergy—which means that intervening at any of several points can shut the cascade down. People whose bodies make less IgE over time can become less sensitive to allergens. The same seems to be true for those who start producing more of another antibody, called IgG4, that can counteract IgE. Some people also dispatch a molecule known as IL-10 that can tell immune cells to cool their heels even in the midst of IgE’s perpetual scream.

    All this and more can eventually persuade a body to lose its phobia of an allergen, a phenomenon known as tolerance. But because there is not a single way in which allergy manifests, it stands to reason that there won’t be a single way in which it disappears. “We don’t fully understand how these things go away,” says Zachary Rubin, a pediatrician at Oak Brook Allergists, in Illinois.

    Read: What they aren’t telling you about hypoallergenic dogs

    Tolerance does display a few trends. Sometimes, it unfurls naturally as people get older, especially as they approach their 60s (though allergies can appear in old age as well). Other diagnoses can go poof amid the changes that unfold as children zip through the physiological and hormonal changes brought on by toddlerhood, adolescence, and the teen years. As many as 60 to 80 percent of milk, wheat, and egg allergies can peace out by puberty—a pattern that might also be related to the instability of the allergens involved. Certain snippets of milk and egg proteins, for instance, can unravel in the presence of heat or stomach acid, making the molecules “less allergenic,” and giving the body ample opportunity to reappraise them as benign, says Anna Nowak-Węgrzyn, a pediatric allergist and immunologist at NYU Langone Health. About 80 to 90 percent of penicillin allergies, too, disappear within 10 years of when they’re first detected, more if you count the ones that are improperly diagnosed, as Blumenthal has found.

    Other allergies are more likely to be lifers without dedicated intervention—among them, issues with peanuts, tree nuts, shellfish, pollen, and pets. Part of the reason may be that some of these allergens are super tough to neutralize or purge. The main cat allergen, a protein called “Fel d 1” that’s found in feline saliva, urine, and gland secretions, can linger for six months after a cat vacates the premises. It can get airborne, and glom on to surfaces; it’s been found in schools and churches and buses and hospitals, “even in space,” Blumenthal told me.

    Read: The next weird way we’re changing cats

    For hangers-on like these, allergists can try to nudge the body toward tolerance through shots or mouth drops that introduce bits of an allergen over months or years, basically the immunological version of exposure therapy. In some cases, it works: Dosing people with Fel d 1 can at least improve a cat allergy, but it’s hardly a sure hit. Researchers haven’t even fully sussed out how allergy shots induce tolerance—just that “they work well for a lot of patients,” Rubin told me. The world of allergy research as a whole is something of a Wild West: Some people are truly, genuinely, hypersensitive to water touching their skin; others have gotten allergies because of organ transplants, apparently inheriting their donor’s sensitivity as amped-up immune cells hitched a ride.

    Part of the trouble is that allergy can involve just about every nook and cranny of the immune system; to study its wax and wane, scientists have to repeatedly look at people’s blood, gut, or airway to figure out what sorts of cells and molecules are lurking about, all while tracking their symptoms and exposures, which doesn’t come easy or cheap. And fully disentangling the nuances of bygone allergies isn’t just about better understanding people who are the rule. It’s about delving into the exceptions to it too.

    How frustratingly little we know about allergies is compounded by the fact that the world is becoming a more allergic place. A lot of the why remains murky, but researchers think that part of the problem can be traced to the perils of modern living: the wider use of antibiotics; the shifts in eating patterns; the squeaky-cleanness of so many contemporary childhoods, focused heavily on time indoors. About 50 million people in the U.S. alone experience allergies each year—some of them little more than a nuisance, others potentially deadly when triggered without immediate treatment. Allergies can diminish quality of life. They can limit the areas where people can safely rent an apartment, or the places where they can safely dine. They can hamper access to lifesaving treatments, leaving doctors scrambling to find alternative therapies that don’t harm more than they help.

    But if allergies can rise this steeply with the times, maybe they can resolve rapidly too. New antibody-based treatments could help silence the body’s alarm sensors and quell IgE’s rampage. Some researchers are even looking into how fecal transplants that port the gut microbiome of tolerant people into allergy sufferers might help certain food sensitivities subside. Anne Liu, an allergist and immunologist at Stanford, is also hopeful that “the incidence of new food allergies will decline over the next 10 years,” as more advances come through. After years of advising parents against introducing their kids to sometimes-allergenic substances such as milk and peanuts too young, experts are now encouraging early exposures, in the hopes of teaching tolerance. And the more researchers learn about how allergies naturally abate, the better they might be able to safely replicate fade-outs.

    One instructive example could come from cases quite opposite to mine: longtime pet owners who develop allergies to their animals after spending some time away from them. That’s what happened to Stefanie Mezigian, of Michigan. After spending her entire childhood with her cat, Thumper, Mezigian was dismayed to find herself sneezing and sniffling when she visited home the summer after her freshman year of college. Years later, Mezigian seems to have built a partial tolerance up again; she now has another cat, Jack, and plans to keep felines in her life for good—both for companionship and to wrangle her immune system’s woes. “If I go without cats, that seems to be when I develop problems,” she told me.

    It’s a reasonable thought to have, Liu told me. People in Mezigian’s situation probably have the reactive IgE bopping around their body their entire life. But maybe during a fur-free stretch, the immune system, trying to be “parsimonious,” stops making molecules that rein in the allergy, she said. The immune system is nothing if not malleable, and a bit diva-esque: Set one thing off kilter, and an entire network of molecules and cells can revamp its approach to the world.

    I may never know why my cat allergy ghosted me. Maybe I got infected by a virus that gently rewired my immune system; maybe my hormone levels went into flux. Maybe it was the stress, or joy, of graduating college and starting grad school; maybe my diet or microbiome changed in just the right way, at just the right time. Perhaps it’s pointless to guess. Allergy, like the rest of the immune system, is a hot, complicated mess—a common fixture of modern living that many of us take for granted, but that remains, in so many cases, a mystery. All I can do is hope my cat allergy stays gone, though there’s no telling if it will. “I have no idea,” Nowak-Węgrzyn told me. “I’m just happy for you. Go enjoy your cats.”

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    Katherine J. Wu

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  • The Glory of Feeling Fine

    The Glory of Feeling Fine

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    A few months ago, I got food poisoning. The sequence of events that led to my downfall began with a carton of discounted grocery-store sushi purchased and consumed on a Thursday, which led to me waking up a little queasy on a Friday, which devolved into a 12-hour stretch of me vomiting and holding myself in a fetal position, until my legs ached from dehydration. On Saturday the smell of my partner cooking breakfast still made me gag; I sipped water, napped fitfully, and nibbled little golf balls of white rice.

    But Sunday, glorious Sunday, I awoke to a marvelous lack of pain and fatigue. The brain fog was gone. My skin felt plump with fluids. Enthralled by recovery, I found myself behaving with uncharacteristic serenity. When I dropped and broke a ceramic bowl while unloading the dishwasher, I didn’t curse and freak out. Instead, I swept up the shards with cheer. I wouldn’t sweat the small stuff. I was my normal self again, and it felt sublime.

    Yet as I relished in my newfound bliss, a foreboding thought gnawed at me: I knew that as the hours passed and the specter of illness retreated, my fresh perspective, too, would fade. So much of my exuberance was defined by absence, the lifting of the burden of aches and puking. It would only be a matter of time until normal felt normal again, and I’d be back to worrying about all the petty minutiae I always worry about.

    People have different baselines of health, and some might be more or less appreciative of whatever condition they’re in. Even so, humans have long lamented the ephemeral joy of relief. The feeling manifests in all kinds of circumstances: meeting a deadline, passing a test, finishing a marathon. And it can be especially acute in matters of wellness. “Health is not valued, till sickness comes,” wrote the 17th-century British scholar Thomas Fuller. Or as the 19th-century German philosopher Arthur Schopenhauer bemoaned: “Just as we do not feel the health of our entire body but only the small place where the shoe pinches, so too we do not think of the totality of our well-functioning affairs, but of some insignificant trifle that annoys us.”

    So many of us, in other words, are very bad at appreciating good health when we’re fortunate enough to have it. And anyone experiencing this transcendent gratitude is unlikely to hold on to it for long. Indeed, by Monday morning, the afterglow of recovery had worn off; I was engrossed in emails and work again, unaware that just 60 hours prior I could barely sit upright in bed, let alone at my desk. This troubled me. Am I cursed to be like this forever? Or is there anything I can do to change?

    To some extent, I’m sad to report, the answer might well be no. While certainly some people can have experiences of major illness or injury that change their entire outlook on life, the tendency to revert to forgetfulness seems to run pretty deep in the human psyche. We have limited attentional resources, the UC Davis psychology professor Robert Emmons told me, so in the interest of survival, our brain tends not to waste them focusing on systems that are working well. Instead, our mind evolved to identify threats and problems. Psychologists call this negativity bias: We direct our attention more to what’s wrong than what’s right. If your body’s in check, your brain seems to reason, better to stress about the project that’s overdue or the conflict with your friend than sit around feeling like everything’s fine.

    Read: Does ‘counting your blessings’ work?

    A second psychological phenomenon that might work against any enduring joy in recovery from illness is hedonic adaptation, the notion that after positive or negative life events we, basically, get used to our new circumstances and return to a baseline level of subjective well-being. Hedonic adaptation has been used to explain why, in the long term, people who won the lottery were no happier than those who didn’t; and why romantic partners lose passion, excitement, and appreciation for each other over time.

    Arguably, adaptation need not be seen as any great tragedy. For health, in particular, there’s an element of practicality in the human capacity to exist without fussy attentiveness. This is how we’re supposed to operate. “If our body isn’t causing us problems, it doesn’t actually pay to walk around being grateful all the time. You should be using your mental energy on other things,” Amie Gordon, an assistant professor of psychology at the University of Michigan, told me. If we had to sense our clothes on our bodies all day, for example, we’d constantly be distracted, she said. (This is actually a symptom of certain chronic disorders, like fibromyalgia—Lauren Zalewski, a writer who was diagnosed with both fibromyalgia and lupus 22 years ago, told me that it makes her skin sensitive to the touch, as if she constantly has the flu.)

    All that said, there are real costs to taking health for granted. For one, it can make you less healthy, if as a result you don’t take care of yourself. For another, maintaining some level of appreciation is a good way to avoid becoming an entitled jerk. Throughout the pandemic, for instance, there has been “this language around how the ‘only’ people dying are ‘old people’ or people with pre-existing conditions,” as if these deaths were more acceptable, Emily Taylor, a vice president for the Long-COVID Alliance, a group that advocates for research into post-viral illnesses, told me. Acknowledging that our own health is tenuous—and that certainly, many of us are going to get old—could counter this kind of callousness and encourage people to treat the elderly and those with chronic conditions or disabilities with more respect and kindness, Taylor argued.

    In my view, there’s something to be gained on an individual level, too. In recent years I’ve seen friends and loved ones deal with life-altering injuries and diagnoses. I know that one’s circumstances can turn on a phone call or a moment of inattention. To be healthy, to have basic needs met—to have life be so “normal” that it’s even a little boring—is a luxury. While I am living in those blessedly unremarkable times, I don’t want my fortune to escape my notice. When things are good, I want to know how good I’ve got it.

    Read: How to be thankful when you don’t feel thankful

    What I want, really, is to hold on to a sense of gratitude. In the field of psychology, gratitude can be something of a loaded term. Over the past decade or so, articles, podcast episodes, self-help books, research papers, celebrities, and wellness influencers alike have all extolled the benefits of being thankful. (Oprah famously kept a gratitude journal for more than a decade.) At times, gratitude’s popularity has been to its own detriment: The modern-day gratitude movement has been criticized for overstating its potential benefits and pushing a Western, wealthy, and privileged perspective that can seem to ignore the realities of extreme suffering or systemic injustices. It’s also annoying to constantly be told that you should really be more thankful for stuff.

    But part of the reason gratitude has become such a popular concept is due to bountiful research that does point to genuine emotional upsides. Feeling grateful has been associated with better life satisfaction, an increased sense of well-being, and a greater ability to form and maintain relationships, among other benefits. (The research on gratitude’s effects on physical health is inconclusive.) For me, though, the pull is less scientific and more commonsense anyway: Learning to genuinely appreciate day-to-day boons like having good health, or food in the fridge, seems like being able to tap into a renewable source of contentment. It’s always so easy to find stress in life. Let me remember the things to smile about, too.

    One way to make the most of gratitude may be to reframe how people tend to think of it. A popular misconception, Emmons told me over email, is that gratitude is a positive emotion that results from something good happening to us. (This might also be part of the reason it can be hard to appreciate conditions like health that for many people remain stable day after day.) Gratitude is an emotion, but it can also be a disposition, something researchers call “trait gratitude.” Some people are more predisposed to feeling thankful than others, by virtue of factors like genetics and personality. But Emmons says this kind of “undentable thankfulness” can also be learned, by developing habits that contribute to more of a persistent, ambient awareness, rather than a conditional reaction to ever-changing circumstances.

    What does this look like, practically speaking? “I don’t know that we can, with every breath we have every moment, feel grateful that we’re breathing. That’s a pretty tall order,” says Gordon. “But that’s not to say that you don’t build in a moment for it at some point in your day.” If you’re recovering from a cold, for example, you can practice pausing whenever you’re walking out the door to appreciate that your nose isn’t stuffy before just barreling on with life. Another tactic, from Emmons, is to reflect upon your worst moments, such as times you’ve been ill. “Our minds think in terms of counterfactuals,” he said, which are comparisons between the way things are and how they might have been. “When we remember how difficult life used to be and how far we have come, we set up an explicit contrast in our mind, and this contrast is fertile ground for gratefulness.”

    Read: Don’t teach your kids to fear the world

    You can also think of gratitude as an action, Emmons has written. This hews closer to the historical notion of gratitude, which as far back as the Roman days was associated with ideas like duty and reciprocity—when someone does something kind for us, we’re expected to return the favor, whether that’s thanking them, paying them back, or paying it forward. In that sense, being grateful for your body probably means doing your best to care for it (and, probably, refraining from risky behaviors like rolling the dice on discounted grocery-store sushi).

    In 2015, Lauren Zalewski, the writer with fibromyalgia, founded an online community that supports people living with chronic pain by helping them to cultivate a grateful mindset. She tells me that before her diagnosis, she took her health for granted and “beat her body up.” Now, she eats vegan, takes supplements, does yoga, stretches, sleeps more, and gets sun regularly—these are the small things she has personally found helpful for managing her constant pain. “So while I am a chronically ill person,” she muses, “I consider myself pretty healthy.”

    Looking back on my food-poisoning incident, I think I was primed to ruminate more deeply than usual on the topics of sickness and health. In the past two and a half years, I’ve watched COVID-19 show that anyone can get ill, perhaps seriously so. Now, as the head of the World Health Organization tells us that “the end is in sight” for the pandemic  (and President Joe Biden controversially declares the pandemic over), it’s tempting to imagine that humanity is on the brink of waking up the morning after a hellish sickness.

    It’s probably delusional to hope that even a global pandemic could prompt some kind of long-term collective mental shift about the impermanence of health, and of life. I didn’t become a radically different person after recovering from puking my guts out a few months ago either. But maybe the simple act of remembering the health we still have in the pandemic’s wake can make a small difference in how we go forward—if not as a society, then at least as individuals. I’m sure I’ll never fully override my tendency to take my body for granted until it’s too late. But for now, each day, I still get the golden opportunity to try. And I’d like to take it.

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    Gloria Liu

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