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Using umbrellas against the sun is the latest fashion in Spain. Science is clear to what extent it really protects us

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It is increasingly common to see how people walk down the street with an umbrella in their hands to protect themselves from the sun. This habit was something that was very internalized among the Asian tourists that we saw in our cities, but with the thermometers breaking records and the sun beating down on the streets, the umbrella is increasingly popular to prevent the sun’s rays from hitting our skin. The underlying idea. As we say, it may be quite logical to cover ourselves from the sun with an umbrella to prevent ultraviolet radiation from freely affecting our skin, something that can cause serious skin problems. But the real question we should ask ourselves here is: does using an umbrella to protect ourselves from the sun really work? It has been investigated. This is something that has already been measured by specialist dermatologists through from a study published in 2013 in JAMA Dermatology. And the results were quite good, since after analyzing dozens of standard hand umbrellas, it was found that they were capable of blocking between 77% and 99% of ultraviolet radiation. But the problem is that not all umbrellas are the same, since the study revealed that black or very dark umbrellas They are the most effective, consistently blocking more than 90% of ultraviolet rays. This is critical, especially for marketers who are already assigning numerical protection factors to umbrellas. as if they were creams. The invisible enemy. The problem of starting to use an umbrella on our streets to protect ourselves can generate a general doubt: can we go outside without sunscreen? Here the resounding answer from dermatologists is no. The key point that the scientific evidence emphasizes is that shade is a partial protective measure. And the sun not only burns us by projecting its rays directly onto our heads from the sky, but there is also what is known as diffuse and reflected ultraviolet radiation. A common effect. To explain this, we must understand that UV rays bounce off the surfaces around us, such as asphalt, sidewalks, pool water, beach sand, or glass in buildings. All that bounced radiation enters through the sides and under the umbrella, directly impacting our exposed skin. This is the same principle that we apply when we go to the beach, where many people, despite being constantly under an umbrella, come home and have several burns on their skin. This is where we clearly see that ultraviolet radiation also attacks despite being under an umbrella. It’s proven. Here a study published in 2017 tested the beach umbrella against a high SPF sunscreen, and the results showed that the group that relied solely on the shade of the umbrella suffered from sunburn. That is why it is always recommended to apply sunscreen before exposing yourself to ultraviolet radiation in order to avoid burns and the rest of the unwanted effects that the sun has on the skin. In Xataka | Science warns of the dangerous success of anti-suncream hoaxes on TikTok: “Despite being a minority, this content is influential”

Google puts a death date on the Android we knew. The developers are clear that your phone is about to stop being yours

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In August of last year, Google announced one of the most controversial maneuvers from the history of Android: completely changing the DNA of your operating system. This means that, in the future, any app you want to install on your Android device, wherever it comes from, must be signed by a verified developer. Now we know the implications of this a little better and there is a group that is not happy: app developers. In short. With the objective, according to Google, of strengthening the security of ecosystems and in full trial against Epic for the antitrust case which led Android to open up to third-party stores, the company announced a series of measures to make its system and users safer. In essence, there are critics pointing out that what they really want is more control, but basically what Google is going to start asking for is that developers identify themselves if they want their app to be downloaded. We are not talking about an ID to publish in the Play Store, but in any Android store. According to the company, they will begin by verifying the installations from the following stores: Google (Google Play) Honor (HONOR App Market) OPlus (OPPO App Market) Samsung (Galaxy Store) Transsión (Palm Store) Vivo (V-Appstore) Xiaomi (GetApps) The justification of malware. Google defends the decision in order to strengthen the security of ecosystems and “prevent malicious actors from hiding behind anonymity to launch harmful applications.” In fact, when they took the measure they pointed out that they have detected 50 times more malware in apps downloaded outside the Play Store than in their store. According to the company, it is the beginning of a deployment that will be an industry-wide effort, but will contribute to creating a safer ecosystem. And, if the question is how they will do it, developers will have access to a new ‘Android Developer Console’ that will be mandatory and in which they will have to provide legal name, address, email and telephone number. Additionally, organizations will need a corporate website and a DUNS number (like a business ID). Very sensitive data, but which Google promises not to show to anyone but themselves. As if leaks of this kind of thing didn’t exist, wow… The airport metaphor. In the message from a year ago, Google compared this measure to airport procedures in which travelers renounce rights in order to gain security. “Think of this as an identity check at the airport, which confirms a traveler’s identity, but separates it from the security screening of the bags,” Google commented. “We will confirm who the developer is, but we will not review the content of their application or where it came from,” they said. Calendar. That said, the wheel keeps turning for Google and in the post blog of developers have better detailed the calendar: June 2026– A new developer authentication service will be installed on most Android devices. July 2026– The Developer ID Status API will be launched globally, as well as an account type designed for students and hobbyists to share their apps with up to 20 devices without a country-issued ID, coming in early access. August 2026– July early access will be consolidated, but they will also launch an “advanced flow” system for installing apps from unverified developers that will include security checkpoints to resist coercive scams. They assure that it is the method so that advanced users continue to be able to download apps from unverified developers. September 30, 2026: the big stuff begins. App registration will be required for participating stores in Brazil, Indonesia, Singapore and Thailand. Unregistered apps can be downloaded with Android Debug Bridge or advanced flow. 2027: After receiving feedback from everyone and the first tests in those countries mentioned, they will expand the program worldwide. Worry. How it will affect us users remains to be seen. Google comments that the majority of developers in the Play Store are already verified and more than 99% of their apps have been registered. Those who distribute outside of Google Play can register from the android developer console and the students have this access to prepare (in case you are interested). On Reddit, developers have shown concern due to the need to show a national identification, arguing that Google is not an airport or an official institution, but reactions have also been seen positive arguing that anything that involves preventing coercive scam apps (an important group of apps that Google wants to eliminate with these practices) is fine. The head of Android himself already commented in August of last year that It is a fundamental feature for Androidwhich is not going away and they simply want to protect users from malicious developers, not limit user options. The problem is that it is not so clear what is going to happen with all those apps that are distributed via APK, which do not have to be malware or piracy and that, certain users who have chosen Android, did so precisely when the system was opened. and reaction. As points out my colleague Iván in Xataka Móvilthe developers have not sat idly by. Despite Google’s pro-security arguments, they see this move as something that simply wants to give them more control over the system and its developers. That is why campaigns such as ‘Keep Android Open’ have emerged, bringing together signatories from around twenty countries, including heavyweights such as EFF, the Free Software Foundation, the Tor Project, Proton, KDE, LineageOS and Nextcloud. The argument is the following: “You, the consumer, bought your Android device trusting Google’s promise: an open computing platform on which you could run any software you wanted. However, starting in September 2026, Google will implement, without your consent, an update to its operating system that will permanently block this right and leave you at the mercy of Google’s discretion about which software you are allowed to trust. In Xataka | “The biggest mistake of all time”: Bill Gates let slip 400 billion when Microsoft didn’t … Read more

power for local AI and an increasingly clear obsession with weighing less

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There are many good laptops on the market, perhaps too many for a brand to differentiate itself with a list of specifications alone. That is why each manufacturer ends up defending a personality: some rely on the ecosystem, others on design, others on power and others on price. LG, with the gram, has tried to occupy a very recognizable place: that of large laptops that weigh surprisingly little. He LG gram Pro 2026 It was born within that same logic, but with added pressure: now it also has to talk about AI locally. With the LG gram Pro 16Z90Uthe idea is understood quite quickly. The company talks about a 16-inch device weighing 1,199 g, compared to the 1,239 g of the previous model of the same inches, the 16Z90TS, according to the official Spanish file. The difference is not huge on its own, but it helps to understand the movement: LG is trying to maintain a wide screen, a Pro proposal and more declared autonomy without abandoning the gram’s historical obsession with mobility. LG Gram Pro (2026) technical sheet LG Gram Pro 2026 16Z90U LG Gram Pro 2026 Dimensions and weight 357.0 x 255.2 x 16.4mm 1,800 grams 357.0 x 255.2 x 16.4mm 1,800 grams screen 16 inch OLED WQXGA+ (2880 x 1800) 500 nits Contrast 1,000,000:1 16:10 aspect ratio 16 inch OLED WQXGA+ (2880 x 1800) 500 nits Contrast 1,000,000:1 16:10 aspect ratio processor Intel Core Ultra X7 358H16 cores: 4 high performance + 8 efficiency + 4 low consumptionUp to 4.8 GHz18MB Intel Smart CacheNPU up to 50 TOPS Intel Core Ultra X7 358H16 cores: 4 high performance + 8 efficiency + 4 low consumptionUp to 4.8 GHz18MB Intel Smart CacheNPU up to 50 TOPS graphics Intel Arc graphics B390 Graphics Intel Arc graphics B390 Graphics memory 32 GB LPDDR5X (Dual channel, 8,533 MHz) 32 GB LPDDR5X (Dual channel, 8,533 MHz) ports 2 x USB-A 3.2 Gen 2×12 x USB-C USB 4 Gen 3×2 with fast charging, DisplayPort and Thunderbolt 41 x HDMI 2.11 x 3.5mm headphone and microphone jack 2 x USB-A 3.2 Gen 2×12 x USB-C USB 4 Gen 3×2 with fast charging, DisplayPort and Thunderbolt 41 x HDMI 2.11 x 3.5mm headphone and microphone jack wireless connectivity Wi-Fi 7Intel Wireless-BE211 2×2Bluetooth 6.0 Wi-Fi 7Intel Wireless-BE211 2×2Bluetooth 6.0 wired network 10/100/Gigabit Ethernet via RJ45 adapterRJ45 adapter not included 10/100/Gigabit Ethernet via RJ45 adapterRJ45 adapter not included storage 512GB M.2 (NVMe Gen.5) 1TB M.2 (NVMe Gen.5) battery Up to 27 hours, 4 cells and 77 Wh of Lithium-Polymer Up to 27 hours, 4 cells and 77 Wh of Lithium-Polymer sound HD Audio with Dolby AtmosBuilt-in 3W x 2 stereo speakersSmart AMP up to 5W HD Audio with Dolby AtmosBuilt-in 3W x 2 stereo speakersSmart AMP up to 5W webcam and microphone 2 MP FHD IR camera at 30 FPSDouble microphonefacial recognition 2 MP FHD IR camera at 30 FPSDouble microphonefacial recognition price PVPR 2,649.00 euros PVPR 2,849.00 euros The battle is also on the scale The obvious question is how to achieve that fit without making the laptop smaller. That’s where it comes in Aerominumthe new magnesium alloy that LG has introduced in this year’s gram Pro line. The company presents it as a way to reduce weight, reinforce the resistance of the chassis and achieve a more premium metallic finish. They claim that this improvement comes with up to 135% more scratch resistance. Comparison within one’s own family helps put the data in context. The LG gram 16U55 and 16U55Ualso 16 inches, weigh 1,800 g. They are cheaper models and do not belong to the Pro line, so they do not play exactly on the same level. Even so, the contrast serves to see something important: the most aggressive commitment to slimming the laptop is not distributed equally throughout the range. In 2026, the showcase of that strategy is clearly in the Pro surname. The LG gram Pro 16Z90U mounts an Intel Core Ultra X7 358H with an NPU of up to 50 TOPSaccompanied by 32 GB of LPDDR5X memory and Intel Arc B390 graphics. What is relevant is not only that it complies with the fashion of Copilot+ PCbut LG tries to bring certain tasks to the computer itself with the help of gram chat On-Device, its own layer designed to search and summarize documents offline. On paper, that execution on the computer itself can help with privacy, latency, and availability, although the actual scope depends on each feature and how it is implemented. The fine print matters too. LG introduces gram chat On-Device does not support continuous conversations or Internet searches. That is, we are not facing a universal assistant that solves everything from the laptop, but rather a specific layer of local AI for limited scenarios. That precision is important because in 2026 almost all manufacturers talk about AI, but not all of them explain in the same way what it can really do. LG gram Link also enters the scene, an application designed to connect the computer with iOS and Android mobile phones, as well as integration with LG devices with compatible webOS. The idea is not new in the industry, but it does help to understand where LG wants to go: that the gram Pro is not just a light machine with a good screen, but a device capable of better integrating with the rest of the devices we use daily. The rest of the file accompanies that reading of a premium laptop. LG talks about a 16:10 OLED screen of 2,880 x 1,800 pixels, with a variable frequency from 30 to 120 Hz and 100% DCI-P3 coverage, a combination designed to work with more space and better image quality. It also mentions a dual-fan system with 21% more airflow compared to the previous year’s LG gram model used by the company in its internal tests. LG Gram Pro 2026 price and availability The LG gram Pro 2026 arrives accompanied by a broader renewal of the family, with new LG … Read more

We knew that freezing bread was convenient, cheap and fashionable. What we are not clear about is that it is “so good” for health

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The world has changed. And if there is something where that It is more noticeable than in water, land or airthat’s bread. HE note on bread and it shows a lot. So much so that, despite the attempts in recent years to revitalize it, the culture of bread (those 315 varieties that identified Jose Carlos Capel at the end of the 80s) is in clear decline. Thus, the idea of ​​buying bread every day is increasingly in the minority and the big question that thousands of people ask is… “Is it really a good idea to freeze it?” And, to the surprise of many, it is a good idea (although not as good as it wants to let us know). You just need to do it well. So you don’t lose properties? As the dietitian-nutritionist explained Nuria Romero in Ideal“we can rest assured, because when frozen, bread does not lose nutritional properties.” Although, it is true that “sometimes its texture or flavor can be affected.” And is any bread worth it? The best are “those that are less toasted, since they are the ones that best hold the moisture balance between the crust and the crumb.” For the same reason, it is also a good idea to freeze large breads or those that are made from whole wheat or rye flour. How do you freeze bread? Although it may seem obvious, freezing bread is very very simple. There are three easy steps to implement. The problem is that most consumers They are not usually applied systematically. The first thing is to choose fresh bread at room temperature. If the bread is already starting to get hard or hasn’t cooled completely yet, the end result will be much worse. Later, it is highly recommended to cut it into portions that make it easier to defrost later. In this sense, many people choose to cut it into slices. And then pack it airtight. This way we ensure that moisture from the freezer does not come into contact with the slices. And so (well isolated) you can last up to six months in a lot of trouble. And how do we defrost it? That is usually the other big problem: if we do not defrost it correctly, it can lose its freshness. Therefore, the most effective way to do it is at room temperature: placing it on a rack so that moisture does not accumulate, defrosting gives very good results. If we are short of time, it can be defrosted in the oven (at about 160 degrees, wrapped in aluminum foil for 10 or 15 minutes) or directly in the toaster if we have it sliced. Is that where the magic begins? We have seen it in many articles: for example, as he explained Dr. Karen Alarcón Fuentesgastroenterologist and endocopyist, when unfrozen “a large part of the carbohydrate in the bread will be converted into prebiotic fiber.” Something that “not only benefits your microbiota, but will also regulate your blood glucose.” But is it true? It is not clear. As our colleague Liliana Fuchs explained to usis something that “has a certain scientific basis, but is of no use in practice.” The key to all this mess is in the resistant starch“a type of carbohydrate that is difficult for our body to process, it is not completely digested and has a similar effect to fiber.” The problem is that, in the case of breadit has only been possible to demonstrate that freezing it (and roasting it later) reduces the glycemic index, although it was a fairly small study. The process does not affect resistant starch. And, in fact, “the effect on the health of a normal person will be practically nil; the total diet and daily habits matter much more.” Image | Charles Chen | Coffee Danube Still Life Photography In Xataka | We have been eating bread with “hidden salt” for so long that we have forgotten its true flavor. That’s going to change

the “digestion cut” does not exist and science is clear why

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There are some very ‘mother’ phrases that are very well ingrained in our minds and without a doubt one of them is the obligation to wait strictly two hours after eating before entering the pool or the beach. Under the pretext of ‘digestion cut‘, there are many children (and also adults) who have to wait before taking a dip for fear of drowning. However, this is a myth. A popular fable. The concept of “digestion cut” It is not something that is included in the different medical guides nor is it categorized by the WHO as an existing disease. And this is what specialist societies such as the Spanish Society of Primary Care Physicians also point out, whose expert Ángel Jimeno Aranda clearly points out that cutting digestion is a popular term: It really has nothing to do with digestion, although it is true that when you feel so bad after suddenly entering cold water, you begin to have a headache, blurred vision, fatigue, nausea, vomiting or abdominal pain. The symptoms have caused this popular belief that the problem has a digestive origin, but it has nothing to do with digestion. It is more of a vascular process What really happens. If the ‘digestion cut’ does not exist, then… What happens? The answer lies in immersion syndrome, also technically called hydrocution or thermodifferential shock. This phenomenon is triggered when there is a large temperature difference between a bather’s skin and the water, usually when the latter is below 27°C or there is a thermal difference equal to or greater than 5 °C with respect to body temperature. In the body, This is instantly detected by the different receptors that begin to send signals to the brain to provoke an uncontrolled automatic response characterized by involuntary reflex inspiration, hyperventilation and severe cardiac arrhythmias that can lead to immediate drowning, regardless of the state of digestion. So, as we see, it is a completely vascular problem and has nothing to do with having had a sandwich just before going to the restaurant. Matches the food. Despite being a myth, the historical relationship between eating and immersion syncope has a hemodynamic explanation, since during the time after eating, the body redistributes blood flow to the areas that need it most, which at that time is the stomach to be able to digest. This means that there is not as much blood in other parts of the body. In this way, if a person is suddenly immersed in cold water in the middle of the digestive process, and especially if they have been in the sun, the body executes massive peripheral vasoconstriction to contain the heat in the body. Literally, there is a clash between the stomach’s demand for blood and this constricting response, which generates a conflict of signals for our brain, which does not know who to give priority to. The result It is nothing more than hyperstimulation of the vagus nerve that produces a drop in heart rate and also blood pressure. And lowering pressure is not good news because it generates cerebral hypoperfusion, resulting in dizziness, nausea, loss of vision and, in the worst case, syncope. The reality. With all this data it has become quite clear that waiting 2 clock hours after eating to bathe is false, since the determining factor is not the time, but the method of entering the water and the temperature difference. If we look at it from another perspective, if we talk about warm water, this is something almost impossible to happen, even if we have just eaten. The recommendations The steps to follow focus on entering the water slowly, allowing the skin receptors to acclimatize to the temperature to which we are exposing them, first wetting the extremities, the back of the neck and the abdomen. In addition, sudden changes must be avoided after physical exercise or sunstroke, since the body temperature here will be very high and can be a problem regardless of whether the stomach is full or empty. Images | Callum Hill In Xataka | It is increasingly common to find jellyfish on Mediterranean beaches before summer. And it’s a bad sign

The Animal Welfare Law is clear about whether dogs can enter bars. And also about the fine for breaking the rule

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To humans (we know since recently) we like to surround ourselves with pets since long before we we started cultivating the land or the invention of writing. However, they have never played such a relevant role in our homes. The first official statistics On the subject, he estimates that in Spain they live 15 million of pets, more than the entire population of the country under 30 years of age. Only the dogs add up to 7.5. With such a deployment it is normal that more and more people count on them when planning travel or go to a bar. The big question is… Can they pass? Are pets allowed? If you go to Google and type “pets”, “restaurants” and “access” you will find a good handful of publications that talk about whether or not pets can access bars, restaurants, hotels and (in general) private businesses. It stands to reason. First, because in Spain there are more and more pets and every time they are more incorporated in our daily lives. Second, because with the thermometer fooling around with the 30th In much of the country and with clear skies, people increasingly want to make plans outside, stay in a hotel on the beach or go for a drink at a bar. And what is the answer? Depends. As is usually the case when we talk about pets, the ‘bible’ we must turn to in search of answers is the Law 7/2023 on March 28. Said like this, it may not sound familiar to you, but its most popular name surely does: the Animal Welfare Law (LBA), which began to be applied a long time ago. three years. In this specific case we are interested in your article 29which regulates “access with pets to means of transportation, establishments and public spaces.” There the regulatory framework is established and a very simple idea is put forward: as a general rule, pets can enter bars, restaurants and other businesses where food is served, unless otherwise stated. Now, in each case what both the host and the owner of the animal do will greatly influence, so this guideline does not always have to be followed. What does it say about the hoteliers? That they have the right to decide whether or not pets enter their businesses, although if they decide to do the latter and close the doors to them, they must make it very clear from the beginning. And in writing. Basically, Law 07/2023 states that if the owner of a restaurant chooses to ban pets, he must record his decision, warning it on the door in a perfectly visible way. The objective: to avoid surprises for clients or that, once they are seated with their dog, they are asked to leave the premises. What exactly does the law say? The indication that interests us is in the second point of the article 29. And says: “Public and private establishments, hotel accommodations, restaurants, bars and in general any others in which drinks and food are consumed, may facilitate the entry of pets that do not constitute a risk to people, other animals and things, to areas not intended for the preparation, storage or handling of food, without prejudice to the provisions of public health regulations, or municipal ordinances or specific regulations.” “If the entry and stay of the animal is not admitted, they must show a badge indicating this, visible from the outside of the establishment”. Does only the hotelier influence? No. From the LBA comes off that the dog owner also has rights and obligations and that even the latter must comply with certain rules. For example, the previous paragraph emphasizes that the doors of the premises will be open to pets “that do not constitute a risk to people, other animals and things.” And later, in point 5, the same article of the LBA emphasizes that the owners also have responsibilities: “People responsible for pets who can access the transport and establishments and places indicated in the previous sections must take the animal in accordance with the hygienic-sanitary conditions and respecting the security measures determined by the establishment or means of transport itself, as well as specific sectoral legislation.”. What happens in other places? The LBA not only regulates access to restaurants, bars and accommodation. the same article (29) also clarifies that, in general, public and private transport services must “facilitate” the entry of pets as long as they do not represent a threat. However, the ‘photo’ is not the same in all services. Taxi drivers or platforms such as Uber or Cabify can decide “at their discretion” whether or not to accept pets, while the law states that railway, shipping and airline operators must “adopt the necessary measures to guarantee the transportation of animals (…) as long as they are carried out under the access conditions established by each operator, respecting the hygienic-sanitary and safety conditions required by law.” Does it say anything else? Yes. The LBA make it clear also that shelters, refuges, care centers and other places dedicated to caring for people in a vulnerable situation must “make it easier” for their users to access their pets, if they have them. If for whatever reason that is not possible, the same centers must “promote agreements with animal protection entities or shelter projects” so that the pet is not left unattended. It is a fundamental measure to prevent people (homeless people, sick people or victims of abuse, for example) from avoiding going to shelters or residences just so as not to leave their pets helpless. And public buildings? The law points out also that, “unless expressly prohibited,” which must be clearly signposted on the outside of buildings, “pets will be allowed access to public buildings and facilities.” Everything stated in the previous points, of course, does not apply in the case of assistance dogs (for example, those used by the blind) and those that are part of the Armed Forces or State Security Corps. In those cases … Read more

The United States presses the fear button with Claude Mythos and Fable 5. It is a blackout with a clear beneficiary: China

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The United States has turned off the tap most powerful, expensive and advanced AI model ever released by Anthropic, but it has done so in a disconcerting move and with small print. Yesterday, June 12, the White House ordered Anthropic to immediately shut down Fable 5 and Mythos 5 for anyone who is not a US citizen. The order arrived without giving too many explanations about its duration or technical justification, according to Anthropic’s public statement. This government intervention marks a before and after in the modern technology sector: they are not restricting the sale of chips (a common practice), but vetoing access to general access software as a matter of national cybersecurity. What’s happening with Fable 5 and Mythos 5. The US government has issued an export control directive suspending all access to Fable 5 and Mythos 5 for anyone who does not have US citizenship, whether inside or outside the United States. This includes non-U.S. Anthropic personnel. In order to adhere to the directive that came into effect immediately, the company led by Dario Amodei has had to deactivate both models for everyone. At the time of publishing this article, the notice appears when trying to access it. According to Anthropic, the government believes it has discovered a way to jailbreak the model. The company does not agree: after reviewing the demo of this technique to deceive the model, it concludes that the vulnerabilities found are minor, were already located and applicable to other models on the market and can be identified without the need for any circumvention technique. What you see right now if you enter Claude Why is it important. Because Mythos It is a specifically designed model for cybersecurity and its blackout affects both commercial users and those entities in charge of active defense management that are using it. With this measure, Washington turns its cutting-edge AI software into a national security asset. It is worth remembering that Anthropic is already on the blacklist of the Pentagon, so he considers it too dangerous for his Government to use. It is also now too dangerous for foreigners to use. Besides, as Anthropic points outsets a dangerous precedent: if the criterion for withdrawing a model is that someone finds a vulnerability, in practice none will be able to be launched because the company that releases software without a single failure raises its hand. That is to say, if the White House makes this exceptional movement the norm, it will be a shot in the foot to develop cutting-edge models: slower launches due to this “impossible” debugging process, personnel decimated by not being able to count on foreign specialists and if they cannot be marketed abroad there will be less income. Context. This order is the latest chapter in a soap opera of disagreements between Washington and Anthropic that dates back to the beginning of the year. In March, the Pentagon considered that the company was a “supply chain risk.” In its statement, Anthropic has verified that that level of capacity that the government identified as dangerous in Fable 5 is already available in other models on the market, including the GPT-5.5 by OpenAIearlier and more widespread than Mythos. However, that version of ChatGPT has not suffered any suspension. The asymmetry of treatment between OpenAI and Anthropic is evident. The geopolitical context is also important: the United States and China are immersed in a technological race unprecedented in recent decades and each power is playing its weapons, from tariffs to critical materials like rare earths to vetoes on chip sales, EDA software or the Export Control Reform Act 2018, where new technological categories fit, such as the most advanced AI models. Of course, for the Asian giant, every obstacle has worked as a kind of catalyst to advance faster and be increasingly independent of outside technologies. In detail. The order’s enforcement mechanism is supported by the “export control directive” managed by the Department of Commerce. In practice, it means that accessing Fable 5 or Mythos 5 as a foreign citizen (even if you are in the United States) is grounds for infringement. Anthropic tried to anticipate the problem with thousands of hours of testing with the US government, shared it with 40 organizations that manage critical infrastructure and then, with another 150 entities more precisely so that they could find and thus be able to correct vulnerabilities before a third party with malicious interests did so later. It hasn’t been enough. Because Mythos It is a specifically designed model for cybersecurity. Before its public deployment, Anthropic shared it with organizations that manage critical infrastructure precisely so that they could find and thus be able to correct vulnerabilities before a third party with malicious interests did so. Its blackout affects both commercial users and those entities in charge of active defense management. Yes, but. For now, Anthropic complies with the order, but makes it clear that it does not agree and that it is working to resolve it: “We believe this is a misunderstanding and we are working to restore access as soon as possible.” The company behind Claude says it supports the government in blocking really dangerous technologies, but that this process has to be transparent, fair and based on real technical facts. In short, he has not said the last word. On the other hand, the million-dollar question is whether the US government can apply the export control law, initially designed for chips, satellites or critical and specific software, on an AI model available on the internet and in general use. In fact, this regulatory movement puts on the table the importance of having a clear law that defines when, how and with what guarantees a government (in this case, the United States) can intervene. In Xataka | Spain does not want to wait for Mythos to wreak havoc on its companies: that is why it is going to ask for “early access” to Anthropic In Xataka | Claude Fable 5 is the most powerful public … Read more

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

The human being is the primate that sleeps the least. Science is clear that it is a “radical evolutionary experiment”

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We spend a third of our lives sleeping, yet the most common complaint in modern society It’s the lack of rest. We tend to blame screens, work stress and artificial light for robbing us of hours of sleep, but here evolutionary anthropology has a much more forceful answer: human beings are genetically designed to sleep less than any other evolutionary relative. It is studied. It is not something that we see from afar as a mere hypothesis, but researcher David R. Samson, professor of Evolutionary Anthropology, recently published a book that includes the results of his research. And the truth is that, after living with hunter-gatherer tribes like the Hadza in Tanzania and the BaYaka in the Congo, their conclusion is resounding: humans are an absolute biological anomaly. We are the great early riser. If we take out the calculator and the meter, a primate more or less of our same average body mass, brain size and diet should sleep about 9.5 hours a day. But this figure is limited to a fairly select few people, since we actually sleep around 2.5 hours less than our evolutionary biology predicts, making us the primates that sleep the least of all. This is a pretty clear conclusion. if we compare ourselves with other species that have very high sleep rates, as can be seen in the following list: Chimpanzee: between 9.5-11.5 hours a day. Gorilla: 10-12 hours. Pig-tailed macaque: 14 hours. Night monkey: 17 hours. Because? How is it possible that with the most complex and energetically demanding brain in the animal kingdom we sleep so little? The answer seems to lie in the “deep sleep” hypothesiswhich suggests that evolution forced us to have a much deeper and more efficient sleep to sleep much less than the rest of the hominids. For example, humans spend approximately 25% of our rest time in the REM phase, which contrasts with species such as African green monkeys, which They only dedicate 5% to this phase. But in addition, human sleep has a lower proportion of light sleep, since in return, it has a higher proportion of deep sleep. A necessity. Having a much shorter rest was not a whim of ours, but rather a matter of survival, since by leaving the safety of the trees, where our ancestors slept safely, and descending to dry land, the risk of predation skyrocketed. Regarding shorter sleep, evolution promoted several mechanisms to guarantee our survival, such as sleeping next to the fire and in large groups for greater security. But in 2017 a study showed that natural variation in chronotype allowed someone to always be awake standing guard during the night. Don’t blame the screens. It is tempting to think that we sleep for about 7 hours because electric lights and smartphones have altered us in this modern life. But this is not the case, because after analyzing the sleep of the Hadza, who are a hunting community in Tanzania without access to electricity or mobile phones, it was shown that their patterns are identical to ours, sleeping 6.25 hours a night and maintaining a sleep efficiency of 68.9%. Images | MediaEcke In Xataka | We’ve been sold melatonin as the ultimate harmless sleep supplement. Science does not think the same

SpaceX wants to reach a capitalization of 1.75 trillion dollars. Analysts are clear that it is worth less than half

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SpaceX’s is the first of the record-breaking IPOs that are expected this year: it will take place on June 12, 2026 under the symbol SPCX. This operation promises to be the most important public offering of shares in history, and the company has already indicated that its objective is to obtain funds worth $75 billion to achieve an astronomical valuation of 1.75 billion euros. But how SpaceX is valued is one thing, and how analysts value it is quite another. Overrated. The financial analysis firm Morningstar has carried out an analysis of SpaceX’s financial accounts and have reached a striking conclusion: “We believe the company has been significantly overvalued and investors will have the opportunity to buy the shares at more attractive levels after the IPO.” Or what is the same: they advise not participating in that initial IPO, and waiting because they anticipate that the stock will fall in the first days on Wall Street. It’s only worth half. In these conclusions, Morningstar establishes that the valuation discounting SpaceX’s cash flow is $780 billion. That represents 48% than the valuation of the private market, which is 1.5 trillion dollars, and 44.5% less than the valuation attributed to the company itself, which amounts to 1.75 trillion dollars. Is it really more promising than Nvidia? Dan Coatsworh is one of the main analysts at the firm AJ Bell, and he commented on CNBC how that theoretical internal valuation of $1.75 trillion would mean that the value of SpaceX (P/E, Price to Earnings ratio) is 67 times its sales, two times more than, for example, happens at Nvidiathe most valuable company on the planet today. Beware of xAI. One of SpaceX’s theoretical strengths is its artificial intelligence division, xAIbut analysts explain that in reality its theoretical advantage is “undetermined”, and in fact they pose it as “a material threat of value destruction” for the parent company, SpaceX. Morningstar believes that the AI ​​division is worth $170 billion, and that what really matters is something else. The Starlink engine. SpaceX’s real argument for going public and its real strength is not the reusable Falcon 9 rockets, but the profitability of Starlink. The company’s satellite constellation has achieved sustained cash flow in recent months, and its global customer base is growing at an enviable pace. It is undoubtedly SpaceX’s great recurring revenue generation machine. Morningstar values ​​it at $611 billion. The double class trick. SpaceX plans to sell shares at a fixed price of $135 per share, but they will only list 3% of the total shares. In addition, Elon Musk will continue to maintain tight control of the vote with 85% of the total through a dual-class share system. Class A shares, those that go public, allow the right to one vote per share. Class B shares go to the founder and the first key investors. They are not sold on the open market, and each one usually gives 10, 20 or more votes. Institutional dependency. The value of the company, however, is supported by the contracts it has with the US government. Specifically with NASA and with the Department of Defensewhich depend entirely on SpaceX systems for their critical missions. That not only guarantees long-term income, but is a compelling argument to attract more conservative investment funds. Either you believe Elon, or you don’t. We are facing an operation that will test Elon Musk’s real power over the markets. Although SpaceX is an extraordinary company, it is overvalued due to its founder’s habit of selling hype. The tactic of coming out as an indivisible package (Starlink + xAI + Image | Xataka with Magnific In Xataka | Elon Musk knows that TSMC is overwhelmed: Terafab is his idea to completely change the global chip industry

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