believed

We have believed all our lives that “dying of grief” was a romantic myth. Science is clear that there is some truth

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The classic scene of two old people who have been together their entire lives, and when one dies, the other follows him a few days later because “he couldn’t bear the pain” seems to be something that remains in the movies. However, what we have always dismissed as romantic hyperbole or statistical coincidence has, in reality, deep physiological support. It is studied. A recent deluge of scientific data puts on the table a conclusion that is quite devastating by pointing out that intense grief not only hurts emotionally, but also drastically increases the chances of suffering a fatal cardiovascular event that triggers long-term mortality. The most robust and recent confirmation comes through a study published in Frontiers in Public Health that analyzed 1735 people in a ground situation to be able to find out what happened in the long term with those who could not overcome a loss naturally. The results. The researchers here divided the patients into groups according to the intensity and duration of their suffering. What was precisely seen is that those who showed a high and sustained grief trajectory, which is called prolonged grief, not only needed many medical consultations and psychotropic drugs, but also presented a higher risk of mortality than the low grief groups. Translated into plain numbers: people trapped in persistent grief were almost twice as likely to die in the decade after the loss. The heart breaks. When we receive bad news, we sometimes say that the heart ‘has broken’ and for many it may seem strange, since physically the heart is intact. But this expression, which may be popular, has clinical demonstration behind it, as pointed out a published study in Circulation which shows that the first weeks after widowhood or the loss of a loved one are high risk. Specifically, in the first 24 hours after the loss, it was shown that the risk of suffering an acute myocardial infarction reached its maximum peakwhile in the following 30 days cardiovascular events also increased, including stroke. In the guides. As a curiosity, there is even a clinically documented pathology known as Takotsubo syndrome (or broken heart syndrome), which is a cardiomyopathy induced by extreme emotional stress that temporarily weakens the heart muscle, simulating the symptoms of a massive heart attack. The small print. What has been compiled in this case is a statistical correlation, that is, that those people who have had a deep mourning have seen their mortality increase. But this does not mean that there will be an event of this magnitude. What happens in these cases is that grief is a marker of constant vulnerability, since cortisol levels increase, keeping the body in a state of alert that exhausts the immune system. But in addition, those who suffer extreme grief often stop eating properly and reduce their physical activity to zero, and in many cases, forget to take their medication. All of this ultimately increases the risk of mortality, but not the loss itself. Images | Yosi Prihantoro In Xataka | More and more people die from a sudden heart attack in Spain: the sudden death pandemic

Microsoft believed it would take decades to have a useful quantum computer. Majorana 2 just pushed that deadline to 2029

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Finding the Majorana particle would be the best thing that could happen to them. quantum computers. The Italian physicist Ettore Majorana mathematically described its existence in 1937, and since then many researchers have become obsessed with it because it has a characteristic that makes it unique: it is both a particle and its own antiparticle. What makes it very attractive for quantum computing is that, when it appears, it does so in pairs and its topological nature gives it a resistance to external noise that conventional qubits do not have. This distribution of information at two separate points means that local errors triggered by vibrations, temperature or radiation cannot easily erase it. The coincidence of this duplicity and its stability suggests that these particles could be used to make qubits that are more stable and less prone to external perturbations than the qubits used in current quantum computers. Or that, at least, is what Microsoft is pursuing, although with an important nuance: it sounds very good, but after the cold water of 2021 physicists are extraordinarily careful when dealing with them. Microsoft promises to have a functional quantum computer in 2029 Microsoft does not work with Majorana fermions in the strict sense of the elementary particle predicted by Ettore Majorana. What you are looking for are Majorana modes or Majorana quasiparticles: collective excitations that emerge in certain topological superconducting materials and that behave as if they were Majorana fermions. They are not fundamental particles; They are emerging phenomena in the field of condensed matter. This strategy allowed Microsoft officially present in February 2025 Majorana 1, the first topological quantum processor. However, the scientific community received it with skepticism. And it did so because the Redmond company claimed to have created a state of matter in silicon that until then it only existed in theory. His proposal was to use Majorana modes as a basis for more stable quantum computing. Majorana 2 has been developed with the help of Discovery artificial intelligence The problem is that Microsoft had tried to demonstrate something similar before, in 2018, and the scientific article that supported it ended up being retracted by Nature three years later. Majorana 1 was, in that sense, both a technical advance and an attempt to regain credibility. And now Majorana 2 arrives. Microsoft has confirmed that this new quantum processor has been developed with the help of its artificial intelligence (IA) Discovery, and has also explained that it incorporates new materials with the purpose of accelerating the arrival of an error-resistant, and therefore fully functional, quantum computer. Chetan Nayak, CTO and Corporate Vice President of Quantum Hardware, has explained that the Microsoft Quantum team has improved the materials stack used in Majorana 1 for the purpose of create a more stable topological phase. Majorana 2 replaces aluminum with lead, and upgrades the semiconducting active region to a combination of indium arsenide and indium arsenide-antimonide. This change in materials has triggered, according to Microsoftsignificant performance improvements. And it also helps protect the fragile qubits of cosmic disturbances that can destabilize them. Be that as it may, this statement from Nayak summarizes the impact that Microsoft believes Majorana 2 will have on its roadmap: “Based on this rapid progress, we are accelerating our plan toward a scalable and practical quantum computer: we have cut our schedule in half and now aim to reach this goal in 2029.” It is an ambitious promise. And with Microsoft’s track record in quantum computing, the scientific community has reason to continue to be demanding when evaluating it. Image | Microsoft More information | Microsoft In Xataka | 38% of AI experts in the US have been trained in China. They are essential to sustain your leadership

Wallapop believed it had conquered the second-hand market in Spain. Until Vinted appeared

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Wallapop, formerly known as Fleapster. Wallapop It was founded on May 23, 2013 in Barcelona with that name that referred to the famous “flea markets”. Its promoters, Agustín Gómez, Gerard Olivé and Miguel Vicente, started with the support of the Antai Venture Builder accelerator and an initial catalog that they had obtained by shopping at flea markets. The app was designed to meet someone nearby and do the exchange in person, so geolocation was essential for this first version. The team understood a couple of ideas that gave the app a definitive boost: sending a sofa from Seville to Vigo is a pain, and trust between buyers and sellers grows when the seller is three streets away. To make themselves known, they gave part of the company to Atresmedia in exchange for television advertising space. The result was a campaign that turned “Walla!” into a recognizable catchphrase before anyone knew quite what it meant. Vinted, the power of moving. Vinted has five more years of history. Milda Mitkute ​​founded it in 2008 in Vilnius, Lithuaniawhen I was 22 years old and needed to get rid of more than a hundred clothes before moving. At a party he met Justas Janauskas, a computer engineer who built the first version of the site in ten days. The original name was manodrabuziai.l (“second-hand clothes” in Lithuanian) and in the first version they forgot to include a buy button. The platform expanded to Germany the following year, under the name Kleiderkreiseland did not arrive in Spain until many years laterwhen Wallapop already dominated the local market. Differences in use. The most visible difference between both platforms, and the one that most influences the behavior of their users, is who assumes the costs of the transaction. At Vinted the seller does not pay commission. Publish, sell and receive the full price in your wallet. The buyer assumes a protection fee of 0.70 fixed euros plus 5% of the price of the item, which covers incident management and payment retention until confirmation of receipt. Vinted eliminated seller fees in 2023. At Wallapop, in-person sales have no commission, which for bulky or high-priced items is more profitable for the seller. When Wallapop Envoys is used (the logistics service integrated into the app, which generated 74 million euros in 2024) the platform applies a management fee of around 10% of the sales price. There is also a second way of monetization for the platform, which has grown strongly: visibility services that give more relevance to an ad. generated 22 million euros in 2024, 27.6% more than in 2023. An important income for Wallapop, since it represents money for the platform regardless of whether the sale closes. The figures. Let’s look at some figures from 2024 and 2025 that allow us to trace the real state of each company. Vinted closed 2024 with 813 million euros in revenue36% more than the previous year, and a net profit of 76.7 million, which represents an increase of 330% compared to 2023, its first positive year. In 2025, Revenues rose to 1.1 billion (+38%). Net profit, however, fell 19% that year to 62 million due to spending on the expansion of Vinted Go to Spain and Portugal and the launch of Vinted Pay. Wallapop, for its part, closed 2024 with 101 million in revenue (+13%)consolidated losses of 25 million and the first break-even operating in the Spanish market since its foundation. In an average year, platform users generate sales of between 2,000 and 2,500 million euros, according to the company itself. Since 2013 it has accumulated more than 120 million euros in lossesalthough the trend is for a sustained reduction in those red numbers. Enter Korea. This same year, Naver, South Korea’s largest technology company, completed in January 2026 the acquisition of 100% of the company in an operation valued at 600 million euros. The transaction makes Wallapop the European spearhead of Naver in the recommercejoining Poshmark, which already performs these functions in the US and which the Korean group bought in 2023. The CEO of Naver Europe, Seokjoo Han, declared in Barcelona that the group intends to use the city as a base to expand into more European cities, relying on the parent company’s capabilities in artificial intelligence and search. Southern Europe: here we are. What is happening right now in Spain is the clearest reflection of the evolution of the sector. The trade in reused items in Spain reached a volume of 13.8 billion euros annually by 2025equivalent to 0.86% of the national GDP. It is a market that has been growing at a faster rate than general consumption for years, driven by inflation since 2021. Vinted has responded to this situation with the launch of Vinted Go in 2025. The company already operates this network in five markets (Belgium, France, the Netherlands, Portugal and Spain), following the leap that Wallapop made some time ago from being a second-hand app to having a delivery infrastructure (although Vinted has its own logistics operator and Wallapop works with InPost). Wallapop, meanwhile, has been expanding its catalog beyond household objects for years. The engine is one of the categories where it maintains leadership in Spain. And the entry of Naver introduces the possibility of technological improvements in search and personalization that until now were out of reach. Both are getting closer to their rival as time goes by: Vinted is becoming less specialized in clothing, Wallapop is becoming more technological. A final and personal appreciation. Without this implying tipping the balance towards one of the two apps (which is not the purpose of this article), I would like to express my personal experience, linked to my long career selling items especially related to leisure (books, comics, movies, video games). For some time I have noticed how Vinted, which just a couple of years ago did not allow you to buy much beyond clothing, has made a very notable leap towards collecting: its presence in … Read more

In 1910, a comet approached Earth. And half of Spain panicked when they believed that she would die from poisoning.

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In 1908, while reviewing the spectroscopic analysis of the tail of a comet, astronomer Daniel Walter Morehouse realized that it was full of toxic gases (such as cyanogen). The publication of the discovery made half of humanity’s hair stand on end. Above all, because there were just two years left until the Earth crossed paths with the largest known comet: the Halley. Plus, it was very close. Every year, between April 19 and May 28, our planet crosses the trail that Halley has left in its wake over the last few million years. This is what we know as the Eta Aquarids: a shower of very fast stars that peaks this year on the early mornings of May 5 and 6. In 1910, we encountered the comet on May 18. Our grandparents could almost touch it with the tips of their fingers. And that’s where the problems began. As explained Pedro Ruiz-Castell, Ignacio Suay-Matallana and Juan Marcos Bonet A few years ago, the vast majority of astronomers “seemed to be clear that this presence did not pose a danger to the visit of the comet. After all, “the tail of the comet was much less dense than the most perfect vacuum that could be produced in the laboratory”, what effect could such a tail have, no matter how many toxic gases it carried with it? However, the people she went crazy. Whether they were justified or not (which I already say they were not), the doubts about the extension of the comet’s tail and, “consequently, about the possibility that our planet could pass through it and be involved in it” became mainstream. So much so that José Comas i Solà In La Vanguardia on January 23 he even said that “we have been waiting for him (Halley) for 76 years to give us nothing but dislikes“. The confessionals filled to the brim In the end, as constantly happens today, “astronomers do not cease, even without intending to, to alarm the public with the statement that from May 18 to 19 we will have to pass through the tail of Halley’s Comet. On the one hand they assure that nothing bad will happen, and on the other they enumerate the dangers that await us on that day” said El Restaurador de Tortosa. But it was not something uniquely Spanish. Wherever there was a newspaper, there there was dozens of news stories dedicated to denying the hoaxes and prophecies that spread on the street. During those weeks, enormous sales were made. amounts of oxygen in pharmacies throughout Europe and thousands of wills were written before the imminent catastrophe.” In England, many citizens were convinced that “the comet is a chariot of fire, sent by the Supreme Being to take the soul of King Edward to heaven” who had just died on May 6. In Italy there were hundreds of psychotic outbreaks motivated by the comet and from the United States news came of “the strange rites celebrated in the countryside during the early mornings by African Americans in the south”. In Spain, the correspondent of The Impassionate in Bilbao, he wrote on May 18 that “the famous comet is the obligatory topic of all conversations. Many people see the critical moment arriving with real fear, and as proof of this, this morning an extraordinary number of faithful could be seen in the communion boxes in the churches. The priests, even trying to be brief and lenient in the court of penance, were not able to dispatch all those who requested confession, and tonight the churches were full. Tomorrow there will be a almost cometary queue before the sacred tables” Luckily, astronomers they were right and the passage of Halley did not end life on Earth. It did leave us priceless scenes of what would become, with the passage of time, hoaxes, collective hysteria and scientific journalism. Oh, and he “renewed” the material that we come across every year in the month of May: the wonderful Eta Aquarids. Image | Frank Cone In Xataka | Mysterious lights have been appearing in a remote valley in Norway since 1811. And we still don’t know what they are In Xataka | We had always believed that galaxies preceded black holes. James Webb has discovered something else

We believed that raiding the refrigerator at dawn was a lack of willpower. Science has discovered the real culprit

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When night comes, there are many people who cannot conceive of watching a series without something in your hands to eatand not exactly a little carrot, but a little ice cream or some ultra-processed bun. Traditionally, popular culture and fad diets have dismissed this behavior as a simple “lack of willpower” or a sweet tooth. However, the most recent scientific evidence suggests that it is not gluttony, but chronic stress taking control. Night feeding. Eating at night is not always a disorder, but medical literature has been delineating for decades when the line is crossed. Already in 1955, a researcher defined the bases of the so-called night feeding syndrome (NES), characterized by a curious triad: lack of appetite in the morning, hyperphagia at the end of the day and insomnia with awakenings to raid the pantry in the middle of the night. Today, the diagnostic criteria have been updated and indicate that this syndrome occurs when more than 25% of daily calories are consumed after dinner, or if there are two or more episodes of nighttime binge eating per week for at least three months. The trigger It is none other than the hated stress and emotional dysregulation. Here various studies they point Because this nocturnal snacking is associated with a depressed mood, high levels of stress and the need to eat to find a little comfort after a very difficult day. The biological clock. When we eat late, usually after nine at night, or in the two hours before going to sleep, the reality is that we are sending contradictory signals to our ‘primal’ endocrine system. On the one hand, eating at night prolongs the rise of cortisol, which is the stress hormone, at a time when it should be at its lowest levels to prepare the body for sleep. In this way, the body postpones the secretion of the hormone that induces sleep, which is melatonin, and the serotonin and dopamine receptors are altered to respond to food intake. An explosive cocktail. Perhaps one of the most surprising recent findings is the devastating impact that this combination has on our digestive system, since if we combine a high level of stress with late dinners or nightly visits to the refrigerator, the result is catastrophic for the microbiota. Science suggests that those who combine poor sleep, stress and eating habits are up to 2.5 times more likely to see their intestinal health diminished, and also have noticeably less diversity in the bacteria in their microbiome. The whiting that bites its tail. In the end, we are faced with a textbook vicious cycle, wonderfully documented by the University of Arizona. According to your investigations60% of adults confess to itching at night on a regular basis. Of them, two-thirds admit that it is precisely lack of sleep that triggers junk food cravings. But precisely eating at these hours makes you less sleepy. And so on. Images | freepik In Xataka | We Spaniards love to have dinner at 9:30 p.m. and even at 10:00 p.m. Who is paying the price is our body

We believed that eating with our cell phone in our hand was harmless. Science warns that it is “hacking” our satiety

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Today, a fairly everyday scene is to see how, at meal time, in addition to the plate on the table, there is also the illuminated mobile screen is next to it while playing a TikTok video or an Instagram reel. The habit of eating by doing scroll on social networks, reading news or answering messages has become normalized to the point of becoming invisible. However, scientific literature has been warning for years that this disconnection between the plate and the brain has measurable consequences. The hijacking of satiety. The fact of eating while looking at the mobile screen makes us eat much worse, and this is what is known in the literature as mindless eating, which can be translated as “eating unconsciously.” Something that makes a lot of sense because when we are looking at something that interests us, we don’t even realize what we are putting in our mouths, going into automatic mode. And this is very important, because science is quite clear that the fact of feeling full of food is not something that depends only on the gastric process, but also involves our consciousness. In this way, when we eat while paying attention to something else, we damage the episodic memory of food. in the brain there is no adequate record of the textures, flavors or amount of food that has been put in the mouth. As a result of this “food amnesia”, the signals that indicate that the stomach has become full and that one should stop eating more become blurred. This causes us to eat more at that moment, and also, since we do not have a solid memory of having been full, we tend to eat more calories at lunch or snack. The data. This lack of active attention during eating can be extrapolated to specific figures, and something that has been repeated a lot is that cell phone use can increase caloric intake by 30%. Although this is an extreme limit derived from the sum of several disconnection factors, since studies point to somewhat lower figures. a study published in 2019 showed that eating with a mobile phone increases caloric intake by around 15% compared to people who are completely aware of their food. Furthermore, we do not eat more of everything but rather the nutritional profile worsens by tending towards a noticeably higher intake of fats. In the long term, we have a studio published in 2025 by Kyoto University where regular cell phone use during meals was associated with more marked weight gain in adults. But in the case of adolescents, it is associated with a greater consumption of sugary drinks and a higher BMI attributed to multitasking with the mobile phone. That is why it is best to always eat without any type of distraction that diverts attention from the task at hand, because otherwise there are several risks to our own health. Images | drobotdean in Magnific In Xataka | Eating in front of a screen is not a modern mania: it is the new social ritual

We have spent decades ignoring an organ because we believed it was useless. Now they have seen that it is crucial in our longevity

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In the center of the chest, just behind the breastbone, hides a small gland that has been systematically ignored by medicine when it comes to adult health: the thymus. Textbooks have long taught that this organ is vital in childhood to develop the immune system, but that It subsequently atrophies and turns into fat when we grow. But its role in the long run It’s not as irrelevant as we thought.. A turnaround. The paradigm that we were all taught at school has taken a big turn through a publication in Nature that has shown that the health of the thymus in adulthood not only matters, but is a determining factor in predicting how long we will live, the state of our cardiovascular health and also how we will respond to cancer. How it has been seen. The premise of this interesting study lies in a simple observation about people who did not have a thymus because it had been removed and the increase in mortality from all causes compared to those who have a healthy thymus. From here, a research team wanted to understand the true impact of a “sleeping” organ through different CT scans to calculate the thymic health of different people. The system analyzed the images of numerous people, including data from the National Lung Screening Trialwhich had more than 25,000 patients. By crossing the status of the thymus with the medical history and longevity of each individual, the results were so overwhelming that the researchers themselves they confessed It was the first time they had seen such spectacular results, since no one expected such a small organ to have such a clinical impact. Reduces mortality. This study has intensively analyzed the function of this gland in large groups of adults to discover that maintaining good thymic health is directly associated with lower overall mortality. But surprisingly, the study links having a healthy thymus with a lower incidence of cardiovascular mortality In oncology. This is where the finding takes on a revolutionary clinical dimension, since the data show a clear correlation between a healthy thymus and a lower incidence of lung cancer. But we can go further by pointing out that patients who undergo immunotherapy and have a healthy thymus respond greatly to the treatment, and even have a lower risk of suffering from cancer again. Preventive medicine. With this evidence, “thymic health” is positioned to become a very important parameter in the field of personalized medicine to gain insight into how a patient may accept a treatment. But in addition, monitoring its degradation could allow medicine to anticipate autoimmune diseases in those people who already have a higher risk. Images | kjpargeter in Magnific In Xataka | There are people who are 100 years old, but have an immune system of 30: a new study reveals how they manage to avoid cancer

The US believed it had crushed Iran’s missile city. They have counted the complexes again, and it is as if they had shot in the air

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During the Gulf War, several American pilots returned convinced they had completely destroyed numerous Iraqi underground shelters. Days later, reconnaissance images revealed something disconcerting: Many of those complexes were still active because the explosions had barely blocked secondary entrances while the main infrastructure remained intact under tons of rock and concrete. The big surprise. For weeks, the White House presented the campaign against Iran as a crushing demonstration of modern military power: stealth bombers, precision missiles and coordinated attacks with Israel that had supposedly left the Iranian strategic network reduced to rubble. donald trump came to affirm that Tehran already “had nothing” in military terms and that its missiles had been dispersed and out of combat. However, the new secret evaluations US intelligence agencies describe a radically different and deeply uncomfortable scenario for Washington. After reanalyzing satellite images, underground access and logistical activity, American analysts discovered that Iran maintains operational 30 of its 33 complexes of missiles in the Strait of Hormuz and retains a good part of its mobile launchers and arsenals, in addition to having recovered the 90% access of its underground facilities. The feeling within some national security sectors is beginning to be disturbing: after spending thousands of missiles and selling the world the idea of ​​total destruction, the immense Iranian “missile city” remains practically where it was at the beginning. Architecture of a fortress. Here you have to remember something what do we count weeks ago. The real problem for the United States is not just how many missiles Iran retains, but how they were built and distributed their complexes for decades. Tehran turned entire mountains into underground defensive systemswith tunnels, protected warehouses, redundant access and mobile platforms capable of moving missiles from one point to another even after a bombing. Many installations were not designed to resist a specific attack, but to ensure that they always there will be something operational after any initial wave. That’s where the intelligence reports are causing real concern: Many of the entrances were temporarily sealed, but not completely destroyed, and the vast majority of the complexes they regained access operational in a matter of weeks. In some cases, the Iranians may even continue to launch missiles directly from the facilities themselves. The result is a very different image from the American public narrative: rather than eliminating the threat, Washington seems to have scratched the surface of an infrastructure conceived precisely to survive a war of technological attrition. The hidden price of the operation. The other great revelation of the conflict is not underground in Iran, but inside the own US arsenals. The campaign consumed gigantic amounts of advanced ammunition: more than a thousand stealth cruise missiles, around a thousand Tomahawks and more than 1,300 Patriot interceptors, figures that are equivalent to entire years of industrial production. The Pentagon attempted to balance two incompatible priorities: destroying extremely hardened Iranian complexes and, at the same time, do not empty completely its strategic reserves in the face of possible future crises with China or North Korea. This limitation explains part of the most controversial tactical decisions of the war. Rather spray completely many underground complexes, planners opted to seal access and entrances using fewer bunker buster bombs than necessary to destroy the entire facility. Now the consequences are beginning to appear starkly: it spent enormous amounts of high-end weapons, but the Iranian network continues to retain significant operational capacity. Hormuz as center of gravity. All of this takes on an even more delicate dimension due to where most of Iran’s surviving capacity is concentrated: the Strait of Hormuz. Approximately a fifth of the world’s oil circulates through that maritime strip, and US intelligence believes that Iran maintains enough missiles and launchers there to to continue threatening warships, oil tankers and critical infrastructure. The US Navy maintains a practically continuous presence in the area with more than twenty ships patrolling and holding the blockade, but the strategic reality is beginning to become uncomfortable: even after a gigantic military campaign, Washington has not been able to eliminate Iran’s ability to turn Hormuz into a nightmare for global trade. There is no doubt, this persistence completely alters the initial perception of the war. What seemed like a demonstration of technological supremacy is also beginning to look like a warning about the real limits of modern air power against deeply dispersed underground networks. The political contradiction. Ultimately, the conclusions of the intelligence “count” They are also opening an increasingly visible political rift in Washington. While the White House publicly insists that the operation was a historic success and accuses those who question that story of “virtual betrayal,” internal reports describe a enemy far away of being neutralized. And the contradiction threatens to become both a strategic and political problem. If the ceasefire collapses, Trump would have to decide between accepting that Iran retains a relevant military capability or relaunching an even more costly campaign using ammunition reserves that will most likely take years to recover. The dilemma is especially delicate because European allies They already fear delays in arms deliveries destined for Ukraine due to American industrial wear. The war against Iran was designed to demonstrate strength and restore deterrence, but what is beginning to emerge, however, is another, much more uncomfortable reading: that even the most powerful military machine on the planet may discover too late that destroying a “missile city” buried under mountains is much more difficult than announcing its destruction on television. Image | Iranian Media In Xataka | Suddenly, a military outpost sprouted up in the Iraq desert: it was Israel in its bombing campaign of Iran In Xataka | While everyone was looking at Hormuz, Russia has found a much more important route to supply drones to Iran

We believed that hantavirus did not jump between humans. Until someone went to a birthday party in Argentina

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In recent weeks, the term ‘hantavirus‘ is on the lips of many people, and it is no wonder to the big outbreak that has emerged in the middle of the ocean on a luxury cruise ship. As time goes by, there is more and more data that we have on the table, since we have gone from having the idea of ​​being faced with a virus no possibility of transmission between humans to a scenario in which this is possible and has already occurred. What we knew. When we think about hantavirus, epidemiology usually leads us to a very specific scenario, such as rural areas with infected rodents and humans who become ill by inhaling particles of their excrement. The cycle usually ends there, in an evolutionary dead end that goes no further. However, there is an exception, which is the Andes variant of this hantavirus, which has a high lethality and circulates mainly in South America, being the only one that can be transmitted from person to person. It is not a new phenomenon, but its propagation mechanism, strongly linked to social events and the so-called “superspreaders“, makes it a pathogen of special surveillance, as has been demonstrated by the recent large outbreaks in Argentina and its impact now on an international cruise ship with people who are not currently under control due to its long incubation period. His past. To understand the magnitude of the problem, you have to travel back in time and more specifically to the mid-90s where the medical community believed that hantaviruses were strictly zoonotic pathogens, that is, they were transmitted from animals to humans. But in 1996, an outbreak in southern Argentina changed virology textbooks. Here the publications of the time They made it clear that the 1996 outbreak was happening directly between humans thanks to molecular analyzes that determined that the viruses that were infecting patients were quite similar. A birthday. In a simple meeting between several people in November 2018 in Epuyén, it was clearly confirmed that something was happening with this virus. Here are three symptomatic people who attended a birthdaya funeral and a doctor’s office caused the contagion of 34 people, of whom eleven ended up dying due to the clinic that presents this very aggressive virus. This case set a great precedent, being the clearest example we have to see that the Andes hantavirus can spread in social environments without there being close and continuous contact as was thought until relatively recently. But the most interesting thing is the possibility that there are ‘super-contagators’, who are people who can more easily infect those around them and which right now may be the most plausible theory that explains this contagion on the cruise. Similar. Abdirahman KHALIF Mohamud, spokesperson for the World Health Organization, was the one who shown the similarities that may exist between this birthday in Argentina in 2018 and the case of the cruise because in both cases there was a concentration of people in a closed space. The tranquility. In the cases that are documented right now, which are not many, it could be seen that at the moment in which the authorities isolated the confirmed cases, the transmissibility began to decrease. But in addition, it is also known that when a virus is transmitted three times, there is no more contagion from it, so its capacity to spread is lower, which is good news. The problem is that there is still a lot of information that is emerging in this regard, and although there are experts who point out that we are not going to be facing a major pandemic like Covid, fear is still quite present. In Xataka | The hantavirus was going to reach Europe sooner or later and, as always, it caught us offside

We believed that the secret to rest was sleeping eight hours. A study has shown that we forget a big element

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One of the mantras most repeated ad nauseum in the field of health is related to the need to sleep at least eight hours nightly. A goal that has been widely studied with the repercussions that failure to meet it may have. But now we have seen how the regularity in sleep is a much more powerful preacher of long-term health than mere duration. It’s when you sleep. Although we had very ‘glorified’ how much sleep we have to, trying to make up for lost hours on the weekendthe reality is that the important thing is to have good consistency, as is the case with many other processes. The regularity. The scientific consensus on this paradigm shift is gaining strength, and the last major proof is published by the National Sleep Foundation with an article that points to this regularity as one of the most forgotten components of our nocturnal habits. The key here lies in the internal clock, since we must remember that the time of waking up and early exposure to natural light is what activates our internal system with the cortisol release. In this way, by maintaining a constant reference, we ensure that critical biological processes, from hormonal secretion to body temperature, are regularized. When we don’t respect it. Just like when we travel to another country and we follow schedules very different from ours, the same thing happens here. We have the classic situation on the weekend, where we go to bed late and get up two or three hours later than usual, and surely the feeling when we get up is exhaustion. This is what is now known as ‘social jet lag’ or ‘Monday jet lag’, responsible for that mental fog, lack of alertness and low cognitive function with which we start the week. A shield. Unlike total sleep duration, regularity is a direct marker of the integrity of our circadian system, since when the internal clock and the demands of the environment become out of sync, known as chronodisruption, the body suffers. Just like when we travel between countries or experience time change. Here, a study published in Health Data Science HE dedicated analyzed more than 88,000 adults in the United Kingdom and found that irregular sleep patterns are associated with a greater predisposition to suffer from up to 172 different diseases. In fact, actigraphy studies have shown that intra-individual variability in our sleep hours is a direct marker of all-cause mortality, so trying to accumulate hours on Saturdays and Sundays not only does not save the furniture, but it puts us at risk. The impact of irregularity. In this sense, a linear relationship can be seen between sleep instability and the risk of suffering a cardiac event. But trying to “compensate” for tiredness on the weekend also results in worse insulin sensitivity and ends up altering glucose metabolism, which causes the bill to be quite expensive in the long run. Furthermore, the lack of a clear sleep routine causes a chronic pro-inflammatory state. This alteration compromises our immune response to pathogens, worsens the regulation of autoimmune diseases, and decreases the ability of our cells to repair themselves and eliminate metabolic waste. In summary, following set hours of sleep is essential if we really want to have optimal results in our daily lives. Images | diana.grytsku in Magnific In Xataka | We have accepted that “deep sleep” is the standard for sleep quality: science points in another direction

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