Mobile Tech & Gadgets

Saudi Arabia has realized that to attract wealthy expats and Western tourists it needs something: alcohol

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Maybe the Spanish we are moving away little by little from alcohol, but beer, wine and spirits continue to be a pillar of Western leisure. Saudi Arabia knows this well, as in its efforts to modernize and gain appeal to Westerners (both expats wealthy as tourists) has decided to make more flexible access to the drink in the country, where its purchase has been radically restricted for more than 70 years. The change is being made timidly, silently, almost underground; but it tells us a lot about how the kingdom is transforming. The news that they are coming in drops to the West they leave a resounding reading: foreigners will be able to buy alcohol in Saudi Arabia… as long as they meet a series of requirements that focus in your wallet. Looking to the 20th century. If you like to share a few beers with friends, have dinner with a glass of wine or drink a cocktail when you go out, Saudi Arabia is not your country. Or it hasn’t been at least for the last seven decades. The kingdom is governed by shariawhich vetoes alcohol. Even Foreign Affairs reminds Spaniards traveling to the country that public consumption “is strictly prohibited” and landing with bottles can lead to “severe fines” and an accusation of smuggling. Saudi Arabia’s zeal to ban the drink dates back to at least the mid-20th century. And not only because of Koranic law and the fact that the kingdom claims to be the guardian of the sacred places of Islam. In the early 1950s, King Abdul Aziz banned the sale of alcohol after one of his sons, Prince Mishari, assassinate a diplomat British drunk. For diplomats. Although getting alcohol in Saudi Arabia is much (very much) more difficult than in Europe or even in Dubaisomething is changing in the Islamic kingdom. The first sign came just two years ago, beginning of 2024when the Saudis saw the first liquor store in more than 70 years. Of course, the business was launched with certain limitations. To begin with, the establishment only sold alcohol to non-Muslim diplomats. In fact, it opened precisely in the neighborhood of the city where they work. At least at first The Executive also intended that customers would have to register through an app, obtain an authorization code and respect certain quotas. A small (big) step. That first store may not look anything like the liquor stores of Europe, but its debut marked a milestone in Saudi Arabia and began to break the long taboo that prevailed in the kingdom around alcohol. Last November that opening was confirmed when agencies such as Reuters either Bloomberg revealed that the country planned to open two new liquor stores: one in Dhrahan, in a complex owned by the oil company Aramco, and another in Jeddah. The first would be designed for non-Muslim employees of the company. The second would be located again in an area frequented by diplomats. Expanding the market. In November, both Reuters and Bloomberg reported another relevant news that is now has confirmed The Wall Street Journal: The Riyadh liquor store that was theoretically intended for foreign diplomats will also sell bottles to certain residents of Saudi Arabia. To whom? Especially non-Muslim foreigners with Premium Residence. These residence permits are basically granted to businessmen, large investors, wealthy foreigners and qualified professionals who work in strategic sectors or for the Government. In December Bloomberg needed In fact, customers who want to buy wine or spirits in Riyadh have to prove that they earn at least 50,000 riyals per month, about $13,300. Reporter Vivian Nereim, from The New York Times, came in person outside the Riyadh liquor store and spoke with customers of the business who (among other issues) confirmed that one price is applied to diplomats and another, higher price, to the rest of the buyers. A bottle of mid-priced white wine cost about $85, about five times the US price. “Something was coming”. Against this backdrop, recently TWSJ public a chronicle which goes one step further. According to the American newspaper, Saudi Arabia plans to continue making its relationship with alcohol more flexible with another historic decision: allowing its consumption in luxury hotels and resorts in the Red Sea. “We always knew it was going to happen, that Saudi Arabia was preparing for something,” explains Michael Ratneyformer US ambassador, who speaks of “physical signs” that have been seen for years: “You went into restaurants and they all had bars. They didn’t offer alcohol, but the infrastructure was emerging.” The example of Dubai. The objective is clear: to reinforce the country’s attractiveness for expats, investors and tourists as part of the policy promoted by Prince Mohammed bin Salman to modernize the nation, diversify its economy and reduce your fiscal deficit. In recent years the kingdom has already taken several steps in that direction in different areas (in 2018 allowed women get behind the wheel of a car and in 2034 will host the World Cup) and there are those who point that in terms of leisure and alcohol will look to the United Arab Emirates. Especially to Dubai. In part of the UAE, access to alcohol is limited, but it is relatively easy to obtain in Dubai, a city that has stood out for its ability to attract tourists and wealthy foreigners. For years, those who wanted to access alcohol in Saudi Arabia had to resort to the diplomatic courierartisanal manufacturing at home or the black market, with the risks that it entails. The question is to what extent the kingdom is willing to change that to attract foreign assets. Images | سيف الظاهر (Unsplash), Ambitious Studio*-Rick Barrett (Unsplash) In Xataka | There is an age at which we should stop drinking alcohol forever. Neuroscience is clear why

We will have to wait to test the future with the Meta Ray-Ban Display outside the US: they are being victims of their own success

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The Meta Ray-Ban Display are not perfect glasses nor do they pretend to be, but it’s hard not to feel that there is something different here. The idea of ​​having a color screen integrated into the lens, with speakers, microphones, cameras and even artificial intelligence, continues to sound more like a prototype than an everyday product. And yet, it is happening. Faced with other attempts to “kill” the smartphone that fell by the wayside, such as the AI Pinthese glasses aim for something more subtle. Screen on the lens, bracelet on the wrist. Beyond the concept, the Meta Ray-Ban Display is based on an unusual combination. The information appears on a small color screen located outside the axis of vision, designed for brief and non-continuous consultations. The control is not done by touching the glasses, but through the Meta Neural Banda bracelet that interprets muscle signals in the wrist area to execute minimal gestures. Meta presents this system as a more natural way to interact, reducing the need for buttons, touch surfaces or visible commands. Overwhelmed demand, expansion on pause. As explained this Tuesday by the companythe volume of interest has far exceeded the available inventory, to the point of generating waiting lists that extend well into 2026. Given this scenario, Meta has chosen to freeze the international deployment that it had planned in the short term and focus all its efforts on fulfilling orders already placed in the United States, while reviewing its availability strategy. This stoppage directly affects the plans communicated months ago. The company had indicated that the Ray-Ban Display would arrive in early 2026 in markets such as the United Kingdom, France, Italy and Canada, a first wave outside the United States that is now on hold. Meta does not speak of cancellation or set new dates, a prudent position that confirms the immediate stop, but does not clarify how long it will be extended. {“videoId”:”x9qouiu”,”autoplay”:false,”title”:”Ray-Ban Meta (Gen 2)”, “tag”:”Meta”, “duration”:”134″} Does the queue get longer here too? Although Spain was not in that first group of countries, the slowdown has obvious consequences for this side of the map. In launches of this type, expansion usually proceeds in waves, starting with the United States and continuing, in some cases, through key markets. In this case, Meta never confirmed plans for Spain, neither for this first generation nor for possible subsequent ones. The only thing that can be stated is that, if at some point these glasses end up reaching this market, the international delay makes it reasonable to think of an even longer wait. In Xataka Meta is so serious about smart glasses that its catalog is already a mess: this is how the new models differentiate themselves News for the Meta Ray-Ban Display. The stoppage in expansion has not prevented Meta from continuing to show progress. During CES, the company presented new functions designed to expand the uses of glasses, as a teleprompter mode to read prepared texts or possibility of writing messages by drawing letters with your finger on any surface, which are then transcribed into digital format. They are improvements that reinforce the idea of ​​a product in continuous evolution, even when its availability remains limited by supply and inventory. Images | Goal In Xataka | Two weeks with the Oakley Meta. Technically impressive, but in no man’s land (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news We will have to wait to test the future with the Meta Ray-Ban Display outside the US: they are being victims of their own success was originally published in Xataka by Javier Marquez .

The new Roborock has “little legs” that go up to 8.5cm

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China has conquered the robot vacuum cleaner market. With almost 20% market share, Roborock is the brand that leads the segment and has just announced new products for 2026. The most notable is the Roborock Saros 20, its new high-end robot vacuum cleaner that comes with a chassis that allows it to overcome a hitherto insurmountable obstacle: the steps. The robot vacuum cleaner and climber With the Roborock Saros Z70the brand surprised us with a robotic arm that picked up the things we left lying on the floor. The Saros 20 abandons this idea but has new legs with which it can climb slopes of up to 8.5cm. Technically, Roborock was not the first to have this idea because Dreame showed a robot that climbs stairs a few months ago, but it was a concept, not a commercial product. The particularity of the Saros 20 is in its AdaptiLift 3.0 chassis, which combines lifting wheels with what Roborock calls a “climbing arm”. Of course, there is an important detail and that is that can climb a 4.5cm step followed by another 4cm stepso it does not adapt to any type of unevenness or conventional stairs, whose rise is usually about 17-20cm. Thanks to its elevating chassis, it can also clean carpets up to 3cm high. There is more. It has the StarSight 2.0 intelligent navigation system, capable of detecting up to 200 types of obstacles, including the smallest ones, and has a suction capacity of 35,000 Pa. Regarding scrubbing, it has two rotating mops with the FlexiArm system to reach corners. In addition, the Saros 20 Sonic model has the VibraRise scrubbing system which generates up to 4,000 vibrations per minute. The charging base washes the mops with hot water at 100ºC and dries them afterwards. The two models will be available in 2026 at a still unknown price. New robotic lawnmower and more Roborock also renews its range of lawnmower robots with the new RockMow X1 LiDAR. It has four-wheel drive, which allows it to climb slopes of up to 80% and 8cm steps. The navigation system combines LiDAR and visual SLAM so as not to depend on satellite signal. It allows you to adjust the cut between 4 and 9 centimeters and can cut up to 2,000 square meters per day. Roborock has also renewed its Qrevo Curv series with the new Qrevo Curv 2 Flow. The main novelty is that instead of two rotating mops it has a roller for scrubbing that cleans itself as it rotates. It also extends 10mm to reach the wall. Finally we have the Roborock F25 ACE Proa vacuum cleaner and scrubber with a broom-type design that can be tilted up to 180 degrees to reach under furniture without problem. It comes with a self-cleaning base that washes and dries the rollers at 95ºC to eliminate bacteria. Like the rest of the products, it will be available this year, but we still don’t know what its price will be. Images | Roborock In Xataka | Roborock QV 35A, analysis: this robot vacuum cleaner costs half as much as its older brothers, but who would have thought

everything that is homey is bad for your health

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Christmas is many details: the endless advertisements, the lottery that does not play, the mantecados and the nougats, the posadas, the tíos, the red flowers or the festivals of lights. But one of the most characteristic, at least for me, is the smell of burning wood. I don’t know if it’s because of the hypnotic effect of the fire, the heat they generate or the aroma of burning wood, but a good fire makes a home. So much so that it has become part of the archetypal image we have of him. There is only one small problem: it kills us slowly. At this point, Sam Harris is right.. For some reason, people think that breathing winter air scented with burning wood is something radically different from lighting a cigarette or smelling car smoke. I don’t know, it’s like it has an aura of a “natural thing” that purifies it and makes it harmless. But no, nothing like that. If something is repeated over and over again in the scientific literature is the certainty that there is no amount safe of wood smoke to breathe. And this smoke has hundreds of carcinogenic, mutagenic, teratogenic or simply toxic compounds. The UN calculations It’s not just hysteria: children who live in homes with fireplaces are more likely to develop asthma, coughs, bronchitis, sleep problems and breathing disorders. What’s more, inhaling wood smoke (no matter how little) affects the lung immune system, increasing the likelihood of colds, flu and other respiratory infections. Come on, it’s bad for your health. As Harris pointed outIn 2000, the UN estimated that the use of fossil fuels in the home caused almost two million deaths premature. Almost double the number of traffic accident deaths. And yet, we do not take it for granted. Although it is true that most of these deaths occur in countries where cooking is still done with wood or charcoal, the truth is that there is no compelling reason to continue burning wood on a regular basis. (Matt Seymour/Unsplash) It is not that the problem of fireplaces is equivalent to that of cigarettes, it is that in some ways it is worse: the “passive smokers” are no longer those next to us, but the entire neighborhood. This is, without a doubt, a curious phenomenon: the idealization of a heating system that is severely harmful to health. Something that, furthermore, as Harris points out, is difficult to accept, that they are so normalized that we are not able to assume it without great efforts. Isn’t it time to retire chimneys once and for all? In Xataka | In its conquest of Christmas, Tartar has introduced a new tradition in Spain: the “Australian New Year’s Eve” In Xataka | One more Christmas, it’s time to talk about ‘The Holiday’ for what it is: one of the most influential films of the 21st century Image | Hayden Scott

We have been obsessed with the Mediterranean diet for decades. Turns out the Nordics had a much better solution

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If we go back to 2009, many of us will remember a program known as The Deadliest Warrior (Deadliest Warrior). The premise was to pit two combatants from different eras against each other to see who would win in a duel to the death. Although on the screen we saw the Viking measure his axes against a Samurai, and the Gladiator against an Apache, we never got to see the direct duel between the colossus of the north and the warrior of the Mediterranean. That “fight of the century” was left hanging on television, but in the field of nutrition, the Roman side (the Mediterranean diet) has been the undefeated champion for decades. However, science has decided to simulate that combat in the laboratory in 2025, and this time the Viking’s ax has nipped Mediterranean leadership in the bud. According to the latest studies, the Nordics have a much better solution. A new discovery. Given that we live in the Mediterranean area, it seems impossible to do without olive oil and wheat. But, as nutritionist Dawn Jackson Blatner explains in National Geographica “cousin to the Mediterranean diet in colder climates” has emerged that is demonstrating surprising results. Originally created in 2004 by a committee of scientists and chefs—under the premise that health is not incompatible with gastronomic pleasure—the “new nordic diet” It does not seek longevity, but rather does so with a focus on local sustainability that the Mediterranean model often ignores outside its borders. The most recent milestone is the study published in Frontiers in Endocrinology. After analyzing a young and middle-aged population, researchers led by Abdelgawwad El-Sehrawy found that those who strictly follow the Baltic Sea dietary pattern have a 42% lower risk of developing type 2 diabetes. If the strictest adherence index is used, protection rises to a staggering 52%. This finding is crucial because it shows that the benefits act as a preventive shield from youth, and not only in old age. A shield against modern diseases. The robustness of this diet is supported by an “artillery” of previous research that already pointed in this direction. As a 2024 study details published in Scientific Reportsthe Nordic diet is one of the best tools to combat non-alcoholic fatty liver, reducing its risk by 58%. Added to this is that the benefits do not remain in the metabolism. According to a 2022 meta-analysis published in Diabetology analyzed data from more than a million people, confirming that those who follow this lifestyle have a 26% lower risk of dying from cardiovascular disease, a 22% lower risk of premature death from any cause, and a 14% lower chance of dying from cancer. As Dr. David L. Katz states“all good diets are made up of real foods, mostly plants; the Nordic diet is a masterful variation on that same theme.” What does it mean to eat like a Nordic? Many will surely have thought that it would be something like “eating aranques every day”, but (happily) it is not like that. The mainstay is canola (rapeseed) oil, rich in omega-3 fatty acids and more affordable than olive oil, along with: Whole grains: Rye, barley and oats (essential due to their low glycemic index). Forest fruits: Blueberries, raspberries and wild berries. Tubers and cruciferous vegetables: Beets, carrots, cauliflower and cabbage. Fatty fish: Salmon, mackerel and herring. Fermented dairy: Like skyr or kefir. Beyond diet. One of the points to highlight about the diet is that, according to research by British Journal of Nutrition, Women who followed the Nordic diet reached old age with significantly greater physical performance, easily passing walking and strength tests. The Nordic diet has an ‘inevitable’ side effect: weight loss. And it does this by hacking the feeling of hunger. The NORDIET study put to the test to subjects with high cholesterol and the result was a drop in weight and blood pressure without the stress of measuring each gram. But the most compelling data came from the NND trial. in The American Journal of Clinical Nutrition: Participants with abdominal obesity lost an average of 4.7 kg by eating on demand, without quantity restrictions. Compared to the few kilos lost by those who followed a normal diet, the Nordic system appears to be much more efficient. A solution for everyone. What the north teaches us is that health is not the exclusive property of one geography. As dietician Joan Salge Blake points out,the success of this diet lies in its ability to add strength. It’s the mix of fiber, healthy oils and antioxidants that really matters, acting as a balm against inflammation. It is there, in that inflammation that fuels the diseases of our century, where the Nordic diet fights and wins its most important battle.” You don’t have to live in Oslo to benefit. The key, according to experts, is to prioritize whole foods, choose fatty fish (even if they are frozen or canned due to their affordability) and replace white bread with whole rye. The Nordics seem to have found the recipe for a long, strong and sustainable life. In 2025, the fight is over: the Viking knows how to take better care of himself. Image | Unsplash Xataka | Although it may not seem like it, chickens and pigs are not the most farm-raised animals. Prawns are

fusion energy no longer has a ceiling

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For four decades, nuclear fusion scientists have lived under the shadow of a figure: the Greenwald limit. Something that, in essence, is the “glass ceiling” of the reactors tokamak type and that supposedly prevents them from producing more energy than they could. But the one known as the China’s ‘artificial sun’ has broken this ceiling completely, and on top of it in a stable way (surpassing the European model). The Greenwald Wall. To understand the achievement, you must first understand the problem. In a fusion reactorthe power you generate depends on the square of the density, this way, The more density there is inside the reactor, the more energy it will produce.. However, in 1989 the physicist Martin Greenwald formulated a rule that has remained unbeaten: there is a maximum density. If this maximum density is exceeded, the plasma inside the reactor becomes unstable. What does this mean? Well, if this line is passed, the edge of the plasma cools down too much due to radiation, the electrical current contracts and the reactor suffers a disruptiona sudden stop that can even damage the reactor structure. Bordering the limit. In this way, nuclear physicists have always been very attentive to this limitsince exceeding it can generate great chaos in a nuclear power plant. But logically what is always sought is to get the most out of all the resources available, which is why they have always been working very close to this limit, but never without exceeding it. Until in the end it has been possible to overcome it and remove this limitation from the ‘speedometers’ of nuclear energy. The study. The researchers They have achieved this fact, as they have reported in their article published in Science Advancewhere they point out that they have managed to achieve stable densities of between 1.3 and 1.65 times the Greenwald limit. It was not by brute force, but by experimental “finesse”. Something that they have been able to achieve within the Chinese Artificial Sun. This means that the reactor has been able to work at 165% of its maximum theoretical capacity without suffering any disruption. It is as if we had discovered that an engine designed to go 200 km/h can travel at 330 km/h constantly and without overheating. How has he achieved it? The key has not been just to “put in more gas”, but to change the way in which the Artificial Sun interacts with its own walls. Unlike other reactors, the Chinese Artificial Sun has tungsten on its walls, which is a metal that withstands heat better and makes the plasma less dirty. In addition to this property of its walls, The researchers used high-power microwave waves to heat and “clean” the plasma just before ignition. This is in addition to the fact that they were able to validate a new theory that says that, under certain conditions, the plasma “organizes itself” to move away from the walls and remain stable, even if the density is extreme. Real energy. What China’s Artificial Sun has shown is that the “density-free” regime is real. This changes the rules of the game for ITER (the large international reactor being built in France) and for the future CFETRthe reactor with which China hopes to begin pouring fusion energy into the electrical grid before 2040. Its importance. With this new milestone, making giant reactors will no longer make sense, since with this new theory we no longer need gigantic machines to obtain the same energy. Furthermore, by operating in this new regime, the risk of plasma damaging the reactor is drastically reduced, since you will not be “playing” with the limit. But the most relevant thing is that it has been seen that the denser the plasma is, the closer we are to “ignition”, the point where the Artificial Sun generates more energy than it consumes. This may mean that we are closer to the longed for infinite energy. Images | Daniele La Rosa Messina POT In Xataka | China has discovered an energy source so massive it potentially lasts 60,000 years. The bad news: it’s thorium

This is one of the most complete controls with which you can turn your iPhone or Android mobile into a portable console

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If you usually play a lot on mobile and you are tired of doing it through the touch screen, having a good mobile controller is the best option. He Razer Kishi V3 It is one of the most popular and works for both iPhone and Android. Razer Kishi V3 – USB-C haptic gaming controller for iPhones and Android smartphones The price could vary. We earn commission from these links A very complete controller that offers a complete gaming experience on mobile This Razer Kishi V3 mobile controller is, without a doubt, perfect for playing with your mobile as if you were playing on a portable console. This is thanks to your full size controller designwhich allows you to comfortably play games on your mobile for hours. Offers mobile ergonomics iPhone and Android and features full-size TMR joysticks with interchangeable covers. In addition, you can perfect your aim with the anti-slip control levers high precision, superior to Hall effect designs. It also features dual mouse click rear buttons and pincer grip top buttons. Plus, thanks to Razer Neus Game Launcher, you can discover thousands of games for iOS and Android and save your games. The best thing about this controller is that it is Plug & Play typeso you just have to plug it in and start using it, without having to download any software. You may also be interested Utilify RGB Gaming Mobile Cooler with 2 Modes The price could vary. We earn commission from these links Logitech G G435 LIGHTSPEED The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | Razer In Xataka | Best controllers to play on the computer. Which one to buy and 10 recommended PC gaming controllers for all budgets In Xataka | The best mobile phones, we have tested them and here are their analyzes

The fight between Ryanair and Aena has left a trail of victims throughout Spain. But none as serious as Vigo

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This Sunday, January 4, Vigo airport closed its stage as an international terminal with the last Ryanair flight to London-Stansted, which took off at 9:30 p.m. The Peinador airport has thus become the only Galician airfield without connections outside of Spain, a situation that it already experienced between 2019 and 2023 after the first departure of the Irish airline. What does it mean for Vigo. The most populated city in Galicia loses its only air gateway to abroad after almost three years. Since the end of March 2023, the flight to London had returned the airport’s international status, but is now relegated to an exclusively domestic airport with routes to Madrid, Barcelona, ​​Gran Canaria and Tenerife, in addition to some specific flights to Mallorca. A stormy relationship. The divorce between Ryanair and the Vigo Council is consummated with crossed reproaches. The City Council imposed two sanctions on the company in 2025 for an amount greater than 67,000 euros, accusing it of suppressing 16 frequencies during the summer of 2024 and failing to comply with the agreed tourist promotion actions. “They are not serious people,” Mayor Abel Caballero even stated, according to collect Vigo Lighthouse. Although the contract ended in December 2025, Ryanair took advantage of Christmas to maintain the flight for a few more days. The goodbye numbers. Ryanair closes its second stage in Vigo after selling almost 1 million tickets in a decade of operations, according to The Voice of Galicia. In its first period (2016-2019), the airline received 4.4 million euros from the City Council for three years of presence. In this second phase, it received an additional 1.87 million for the three-year period that is now ending. According to account the mid-Atlantic, the route to London moved nearly 45,000 passengers in 2025 alone, its best record in these three years. Galician airports. The situation contrasts with Santiago de Compostela, which maintains twelve international destinations, and A Coruña, with four. Peinador exceeded one million passengers in 2025, although a good part of that traffic is due to Imserso trips, as collect Vigo Lighthouse. In this way, those who want to leave Spain from Vigo by plane will have to depend on other airports. It will be international again. The Vigo terminal will recover international connections in October, although in a timely manner: the Travelmakers agency has scheduled two planes to Egypt, as already happened in 2025 with charter flights to Morocco, as collect the middle. In addition, Aena and the Port Authority agreed to promote the arrival of cruise passengers at the airport in 2026 to reinforce Vigo’s role as a base port. But they are sporadic solutions, not stable routes. The battle for the north. The Peinador case has been a consequence of the pulse between Ryanair and Aena due to airport taxes, which has caused cuts of 80% in Galicia and also affected Asturias, Cantabria and the Basque Country. Other airlines such as Vueling, Volotea or Aer Lingus are occupying part of the gap left by the Irish in airports such as Santiago, Bilbao or Santander, but the recovery is not the same in all airports. Between the lines. Peinador also enters the list of the nine Spanish airports that operate exclusively in national territory, including Valladolid, Salamanca and Pamplona. For an airfield that in 2017 served eight international destinations and handled 1.5 million passengers in its golden age, the step backwards is significant. It remains to be seen if this status is maintained for long or if the airport will be able to attract new international flights in the future. Cover image | Wolfgang Weiser In Xataka | This is the DGT map to visualize where there are active V-16 beacons in Spain. There is another more useful unofficial map

It’s a warning signal from your brain.

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in a world where insomnia is the order of the dayhearing people saying the phrase ‘it’s like putting your head on the pillow and going cold’ can make you very envious. An attitude that in some cases is seen as a great skilland that certainly seems like an evolutionary advantage. However, science has a much darker reading: it is not efficiency, it’s debt. The thermometer of fatigue. In sleep medicine, the time between getting ready to sleep (such as turning off the light in the bedroom) and entering the first phase of sleep is called Sleep Onset Latency (SUN). A time that has been measured to establish how long is normal for a person, and science estimates it between 10 and 15 minutes. That is to say, between turning off the light and lying down until we start to sleep, the normal thing for an adult is that about 10 minutes pass. When we are below. If there is a range, being above or below it can trigger alarms, such as when the value in a blood test is not within the normal ranges. If it is below, the brain enters a state of “homeostatic hyperexcitability” according to research done for the Sleep Foundation. By this they mean that when the system is so desperate to recover, it ends collapsing when given the chance. And that is why we have three different stages depending on how long it takes us to sleep: The normal range is between 10 and 18 minutes. We speak of pathological drowsiness when it lasts less than 8 minutes. We refer to severe sleep deprivation when we spend less than five minutes. The brain shuts down very quickly. The idea, replicated by experts and based on principles of chronobiology, suggests that instant sleep is the response to chronic restriction. In this way, if for weeks or months you sleep less than necessary, the body accumulates a “bill” that tries to charge himself in every microbreak. Science has wanted to delve into this aspect, and that is why different studies that have been published in Nature and PMC link this ultra-short latency not only with fatigue, but with metabolic alterations and a decrease in cognitive performance. That is why the idea that falling asleep quickly is synonymous with better rest is completely wrong. In fact, research shows that people with this “short latency” often suffer from involuntary lapses of attention and accumulated fatigue which, in environments such as driving or precision work, can be fatal. A long process. The sleep debt is not erased with a night of ‘bingeing’ in bed and getting up at 3 in the afternoon, but studies suggest that this latency can persist during the day. It all depends on what sleep deprivation we have faced our body with. But logically you also have to be careful with this false belief of having rested a lot because the onset of sleep is very rapid. The quality of sleep is only measured by its phases, but in no case does the variable of how quickly I enter the sleep phase come into play. What needs to be done. In the case of a person who falls exhausted at the first yawn, the first thing is to check sleep hygiene. But also be attentive to other indicators such as a possible sleep apneasince this value of sleeping quickly or in any situation is an indication of the presence of this disease that can be really serious and difficult to diagnose. The important thing is that one of the initial symptoms What must be checked in these cases is this poor rest. Images | Shane In Xataka | We thought insomnia was just not being able to sleep. Now we know that there are five different disorders

South Korea has designed a rover with wheels that change size to explore them

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The dream of colonizing the Moon has been around since we set foot in it more than five decades ago. Settling on our satellite poses innumerable challenges; from how to get oxygen, what the food should be likeeven of course what is the best place to do it. We already have an answer to the latter: in caves. The problem is that you have to explore them first. A new rover. They count in Futurism that a team of South Korean scientists and researchers have designed a rover specially designed for the exploration of these lunar caves. The work has been published in Science Roboticswhich includes a video showing how the rover is capable of moving through difficult terrain, withstanding extreme temperatures and even being launched from a drone without suffering damage. The key is in the wheels. They are made up of metal sheets assembled to form a type of helix. The peculiar thing is that the wheels are soft and are capable of changing their diameter from 23 to 50 centimeters. This makes it much easier for you to overcome obstacles, enter smaller gaps when necessary, and also cushion falls. It is a very simple design, without hinges or bearings or complex parts; They simply fold or unfold by torsion, as if they were a spring. Moon cavesyes. As we said, there are many, but the main one is that the conditions are extreme. During the day, the temperature can reach 127ºC and at night it drops to -173ºC, which is not feasible. There is also the problem of long-term radiation. This is on the surface, but there is good news and that is that the Moon has a series of pits or caves where the temperature is much more stable, around 17ºC. A lunar tunnel. There is still more. By mid-2024 NASA discovered a huge cave in the Mare Tranquillitiatis crater, near the area where the Apollo 11 mission landed in 1969. It is estimated that the cave (actually a lava tube) measures about 45 meters wide and reaches up to 80 meters long, and the ground is also quite flat, so placing a settlement inside it could be viable. At the moment this cave has not been explored, although Solutions have already been proposed to do so. Artemis Program. Returning to the Moon is one of the most important space projects currently underway. Artemis It not only proposes setting foot on our satellite again, but also establishing our presence on it. The first unmanned mission was launched in 2022 and the plan is that Artemis II takeoff in February 2026. Artemis III will be the first manned mission, although this could still be missing several years. Image | Kaist In Xataka | We are sending cannabis samples to space. They are going to be key to knowing if we can colonize the Moon or Mars

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