promise

Six phones that already have a silicon-carbon battery and promise up to three days of use without being a brick

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The silicon-carbon batteries They are no longer theoretical or a thing of the future: they are here to stay. At the moment, it is the Chinese manufacturers that are betting on this technology, but it is normal that we will soon see mobile phones of all types with these batteries. And the most striking thing is that this technology is not reserved only for the high-end: There are options for less than 400 euros. Let’s first see what this technology consists of and what differences there are with lithium-ion batteries. Oppo Find X9 5G 16GB/512GB Black The price could vary. We earn commission from these links Carbon-silicon as one more detail to look at when choosing a mobile Although many aspects come into play, as a general rule, the greater the battery capacity, the greater the autonomy of a device. The “problem” is that the batteries that cell phones (and other devices) have been using until now, lithium ion onesuse graphite anodes, which has already reached its energy density ceiling. In other words: for one of these batteries to have more capacity, it has to be bigger. And that causes the device that uses it to become a hulk. This is why silicon-carbon is so important. These batteries, which use this material in the anode instead of graphite, can store much more energy without the need to increase the size of the battery. This means that we can have telephones with a thickness less than 8 millimeters with batteries that exceed 6,000 mAh. Just a year ago it was unthinkable; Today it is beginning to be an accessible reality. Small note here to keep in mind. If you start searching on the Internet for a mobile phone with silicon-carbon, you may find versions with different capacities. Example: the Vivo X300 Pro has an international version with a 6,510 mAh battery, while in Spain it has arrived with 5,440 mAh. Because? As our colleague explains Ivan Linaresit all boils down to saving costs, but not manufacturing costs, but transportation. For safety reasons, if batteries exceed a certain nominal capacity (UN3481 regulations speaks of 20 Wh for each cell), transporting the device becomes much more expensive. Three mobile phones with silicon-carbon batteries for less than 500 euros As we mentioned above, despite being a relatively new technology, silicon-carbon is not limited to very expensive mobile phones. It is true that manufacturers like Samsung, Google or Apple still do not use these batteries, but we have several Chinese manufacturers that do. Below, we leave you three examples that cost less than 500 euros right now. Xiaomi Redmi Note 15 Pro+ The cheapest option on this list is Xiaomi’s Redmi Note 15 Pro+ 5Ga device that is currently coming out 300.29 euros with the coupon ‘ESCD18’. It has a 6,500 mAh battery with a thickness of 8.47 millimeters, with enough autonomy for more than two days. It is not the most powerful option nor the one with the best camera, but it does have good fast charging (100 W), a 6.83-inch screen compatible with Dolby Vision and a speaker system that works well. XIAOMI REDMI Note 15 Pro+ 5G – 8+256GB Smartphone, 6.83″ 1.5K AMOLED Screen, Snapdragon 7s Gen 4, 200 MP Camera, 100W Hypercharge, Charger Not Included, Mocha Coffee (ES Version) The price could vary. We earn commission from these links POCO X8 Pro Max There are batteries with a lot of capacity on this list, but not as much as the one included in the POCO X8 Pro Max. It is impressive that a mobile phone that is 8.2 millimeters and weighs 218 grams has an 8,500 mAh battery, figures more typical of a tablet than a mobile phone. As we always say, it depends on the use we give it, but it is a capacity that will easily give you between two and three days of autonomy. In addition, it performs remarkably and has a good 6.83-inch screen. Costs 412.79 euros with the coupon ‘ESCD18’. Xiaomi POCO X8 Pro Max (12+256 GB) The price could vary. We earn commission from these links Realme 16 Pro+ 7,000 mAh battery in a thickness of 8.1 millimeters. That’s what this one has Realme 16 Pro+a device that has a telephoto sensor that is not present in the two previous options. Beyond this, it also offers good performance and a 6.8-inch screen that stands out for having a sustained brightness level of 1,800 nits. Translation: we will be able to see it perfectly even on those very sunny days. comes out for 361.24 euros with the coupon ‘ESCD18’. realme 16 Pro+ 5G Smartphone 8+256GB, 6.8 Inch Screen, Master Grey, 144Hz, 80W Ultra Charge, 7000mAh Battery, 300MP Camera, Snapdragon 7 Gen 4, IP69 The price could vary. We earn commission from these links Do you have a larger budget? So there are mobile phones with greater power, better cameras and premium finishes. Three mobile phones with silicon-carbon batteries for more than 500 euros If you are looking for mid-range or high-end mobile phones with silicon-carbon, you have a choice. There are very outstanding options that have just come out, such as the Vivo X300 Ultra either the Oppo Find X9 Ultrabut we are going to give you three options that are very interesting and that, since they have been available for a little longer, we can find something cheaper. Vivo X200 FE He Vivo X200 FE It is the mobile phone on this list that has been available the longest, hence we can find it at a very attractive price (582.79 euros with the coupon ‘ESCD18’). In this case, we have a device with a 6,500 mAh battery and 90 W fast charging, which is not bad at all. This device is highly recommended if you like compact mobile phones, since it is less than 8 millimeters thick (7.99 specifically) and has a 6.31-inch screen. Mobile – vivo The price could vary. We earn commission from these links Oppo Find X9 Although he has two … Read more

Universal quantum computers promise to change the world. Now they are closer thanks to giant super atoms

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The prototypes of quantum computers currently manufactured by IBM, Honeywell or Google, among other companies, are engineering prodigies. However, they have defectswhich currently greatly limits the range of applications in which it is possible to use them. The most important of all of them is that they make mistakes and they are still not able to correct them effectively. Scientists are working on developing advanced error correction systems, and if they achieve their goal, universal quantum computers capable of dealing with a wide range of problems will arrive. The Achilles heel of current quantum machines is the extreme fragility of their qubits. And they are very sensitive to disturbances from the environment. Their interaction with the space around them can cause quantum information to be lost or altered, preventing them from delivering a correct result. This phenomenon is known as quantum decoherence and it has the ability to degrade the quantum states that need to be protected in order to carry out operations with qubits. Currently, researchers are making an enormous effort to design effective strategies for isolating qubits from the environment. However, efforts are also being made to develop less fragile qubits, and therefore less sensitive to noise. This is the plan that several scientists at Chalmers University of Technology in Sweden are working on. And they have developed a completely new quantum system designed to protect quantum information and minimize interference from the environment. Its purpose is, neither more nor less, to pave the way for universal quantum computers or large scale. Less decoherence leads to more robust and higher quality quantum computers Quantum computing experts maintain that quantum computers that will have the ability to correct their own errors can be used to design exotic materials, and probably also to develop new drugs and in industrial optimization problems, among other tasks. These are some of the applications that the qubits implemented with giant superatoms proposed by the Chalmers University of Technology team led by applied quantum physics professor Anton Frisk Kockum could put in our hands. Giant Superatoms explore two ideas long known to quantum physicists: giant atoms and superatoms. Giant Super Atoms explores two ideas long known to quantum physicists: giant atoms and superatoms. Unlike isolated atoms, a giant atom in this context is an artificial qubit designed to interact with its environment using light or sound waves at multiple physically separated points. This peculiarity allows them to protect quantum states more effectively than conventional systems, reduce decoherence and remember past interactions. The problem with using giant atoms in quantum computers is that they have significant limitations when trying to entangle them. Entanglement is essential in quantum computing because it allows multiple qubits to share a single quantum state and act as a coordinated system. To solve this limitation, the Chalmers researchers have combined giant atoms and superatoms. A superatom is made up of several natural atoms that share the same quantum state and behave collectively as a single larger atom. Lei Du, one of Chalmers’ researchers, explains to us what is a giant super atom: “We can observe it as multiple giant atoms working together as a single entity, allowing them to exhibit a non-local interaction between light and matter. This allows quantum information from multiple qubits stored and controlled as a unit and without the need for increasingly complex surrounding circuits.” For the moment, giant superatoms are a theoretical proposal, but Professor Anton Frisk Kockum and his team are going to try to build a quantum system using them. If they succeed, they could have found a new type of qubit that is much more robust, and, therefore, suitable for use in the development of universal quantum computers. Image | Generated by Xataka with Gemini More information | ScienceDaily In Xataka | We already know what the chips that will arrive until 2039 will be like. The machine that will allow them to be manufactured is close

It is the promise of a Chinese startup that aims to revolutionize the sector

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There is a whole world in this synthetic fuels. And it is no wonder, since whoever can develop a renewable fuel, without harming the environment and with elements that we have in abundance, has won heaven. And in this regard, there is a Shanghai startup that promises to have taken a significant step. And if his claims hold up, it could change the rules of the game. We tell you the details. Context. China imports more than 70% of the crude oil it consumes, and a considerable proportion comes from the Middle East. If you have been paying attention to this region of the planet in recent weeks, you will have seen that the thing is not very there. And at a time when conflicts in the Persian Gulf generate volatility in the markets and threaten energy supply chains, Beijing has been looking for alternatives to conventional fossil fuels for years. It is in this scenario where Carbonology emerges. What exactly has he announced. Just like share SCMP, the company, co-founded in 2024 by a former Tesla vice president, claims to have developed a process to convert carbon dioxide (extracted from air and water) into synthetic fuel using solar and wind energy. The products it claims to be able to manufacture include gasoline, diesel, aviation kerosene and naphtha, all of them at competitive prices with those on the market. The company also reportedly announced that it is preparing a deployment to produce its product on a large scale in China. How this technology works. The process the startup describes is based on direct air capture, known in the industry as DAC (Direct Air Capture). This technique consists of extracting CO₂ from the atmosphere and combining it with hydrogen, in turn obtained through electrolysis of water using renewable energies, to synthesize liquid hydrocarbons. The result is fuels that are practically identical to those derived from petroleum, but whose carbon cycle is closed: the CO₂ they emit when burned is the same as that captured to manufacture them. It is really not a new process, as it has been developed for years in laboratories around the world and There are pilot projects underwaysuch as the Haru Oni ​​plant, in southern Chile, promoted by companies such as Siemens and Porsche. What is still unclear. The bad thing is that Carbonology’s claims lack details. According to the mediuma company spokesperson confirmed the information but declined to offer more information on the matter. As SCMP shares, the company has a registered capital of just over 14 million yuan (about $2 million) and completed a first round of financing last year. In January it opened a 300 million yuan R&D center in Shanghai, along with a synthetic kerosene production line. In any case, the company recognized that its future commercial operations will probably have to be located near large solar and wind energy facilities in western China, since it is a process with high energy demand. A problem that persists. Synthetic fuels produced from renewables remain expensive. The medium refers to paper published in January 2025 in the journal Energy Conversion and Management, where some of the obstacles to its commercialization were identified, including high capital intensity, low energy efficiency in the conversion and absence of infrastructure and regulatory frameworks that allow its large-scale deployment. About Repsol. In Spain, the main company that has promoted renewable fuels in its gas stations has been Repsol, although the concept in this case is different. Repsol comes from a process that reuses used cooking oilremains of agricultural processes and forestry waste to develop its Nexa fuel, which is already sold in hundreds of gas stations in the country. However, the company is also studying the DAC technique to produce synthetic fuels. It does this through a cutting-edge project in the Port of Bilbao (Petronor). At the moment what they have is a demonstration plant, so we will have to wait to see if it has an outlet. for the car. That a Chinese startup barely a year old claims to have solved the cost problem that has blocked the entire industry is, at the very least, interesting, but there is a lack of data to support it. DAC technology exists and is maturing, but most of the CO₂ captured so far is stored underground, not converted into fuel. That the announcement was made under these circumstances is curious, to say the least. So we will have to wait to see if this project ends up materializing and fulfills what it promises. Cover image | ADIGUN AMPA In Xataka | 115 million barrels released and a fear on the horizon: that gasoline in Spain will go to €2/liter

The Portuguese AVE has a much juicier promise than the connection with Madrid. One of 7,000 million euros

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When talking about trains and infrastructure, there is a country that rubs its hands every time a new project is approved: Spain. Our country has a network of construction companies and rolling stock manufacturers that are among the most leading in the world. And they are already taking positions regarding a new project. One that has 7,000 million euros at stake. The Portuguese AVE. We said a few days ago that Portugal continues to move into an internal high-speed rail connection and that, in fact, its plans go directly through connect Lisbon with the south of Galicia before with Madrid. There are two reasons for this: the movement between Galicians and Portuguese has always been very high but, in addition, it means connecting the two largest Portuguese cities, finally, with a high-speed train. The objective is for the AVE between Lisbon and Porto to be ready in 2033, as well as its connection with Vigo. A year later the link with Madrid should arrive. If the deadlines are met, we will be talking about close a chapter that opened more than 20 years ago. 61 kilometers. It is the distance that runs in the Aveiro-Soure section, which the Portuguese Government has put out to tender. Although, really, we should say that “it’s back in the competition.” And from Portugal they have already tried to award this section without success through a public-private tender. To this tender only The Portuguese company Mota Engil was presented but his project has finally been rejected. This company had already gotten the go-ahead to build the first section between Porto and Aveiro but this time it was not so lucky. 7,000 million euros at stake. They explain in elEconomista.esthat the Portuguese Government has republished this contest with the aim of attracting more companies and projects. And the attraction is clear: now the contract has a potential of 7,000 million euros. The contract is launched to build the high-speed section and the required connections, which requires an adaptation of the Coimbra station, modifying the Northern Line between Taveiro and the southern entrance of said station and building an electric traction substation in the area. But, above all, it has something more juicy: the maintenance of all infrastructure except the section of the Northern Line and the Coimbra station. They explain in the middle that the maximum amount of the award is 1,603.36 million euros but that, in addition, payments are contemplated for a total of 30 years that can reach 4,765 million euros. Added to this is that the project will be partially financed during its construction with 600 million euros. The sum of the project, therefore, is more than 7,000 million euros. The Spanish options. In the middle they also point out that from Spain there will be competition on two fronts. One of them will be Acciona, FCC and Ferrovial, a “team” that has already attended together on other occasions and that, in fact, they dropped out of the tender for the first section of this new high-speed line. Sacyr will also present itself to the project but will do so accompanied by DST and ACA Engenharia & Construção, Portuguese partners with whom it is also presenting itself to the projects in the neighboring country. Again, Sacyr is also another company that already has experience obtaining contracts related to Portuguese railway lines. Pointers. Portugal is the last scenario that Spanish companies will attend, but it is by no means the only one. In recent years, Spanish construction companies have taken over the business of what is known as “AVE to Mecca” and They have found a gold mine in Saudi Arabia for your accounts. They have also found a vein in Vietnam. Although on other occasions this expansionism across half the world has cost some of them some displeasure. CAF, which had been acquired “the contract of the century in Belgium”decided accept the construction of a light rail in Jerusalem. One that passed through Israeli colonies on Palestinian land, which ended up leave the company out of the competition on the new Barcelona Metro trains. Photo | Alex Azabache and Seoane Prado In Xataka | France has tried by all means to prevent CAF from winning “the contract of the century” for Belgian trains. There is good news

Supplements, medications and Silicon Valley vampires: the promise of living (well) over 100 years: Crossover 1×40

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A few weeks ago we brought Dr. José Hernández, an expert in longevity and rejuvenation, who told us about what it really means to get older And what technologies allow us to stop this curse? biological. Well, the thing did not stop there, because in the pipeline we had this second installment of an interview that now goes even further. Thus, on this occasion we focus especially on the drugs and medications that try to extend our longevity and let’s also do it with quality of life. There are some here usual suspectsand there has long been talk about how certain supplements can contribute to human longevity. We took the opportunity to talk about Mounjaro and Ozempic and how these medications “reprogram” the brain and what impact that strategy can have. But in addition, Jaume de la Hoz —who is “deep inside” this segment, as he says— reviews many other drugs and supplements in addition to taking the conversation to another fascinating terrain: that of the vampires of Silicon Valley and that of millionaires like Brian Johnsonwhich has become famous for its unique methods of rejuvenation. Without a doubt, an exciting topic in which, of course, AI can also play a fundamental role. Platforms like AlphaFold and their implications when it comes to proposing a potential revolution in biology are certainly promising, but here we have to be cautious: There are many expectations and, at the moment, few certainties. On YouTube | Crossover

Data centers in space promise to save the planet. And also ruin the earth’s orbit

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Wikipedia should update its page dedicated to the word “ambition” to include Elon Musk’s photo. The tycoon has announced a megaproject according to which his two companies SpaceX and xAI will work together to launch a constellation of one million satellites that will function as data centers in orbit. The problem is that although the idea It has its advantages, it also has an impact potentially terrible for the future of our planet. Energy efficiency. That is the great advantage of the space data centers that Musk proposes. In space, solar panels can perform optimally without the obstacles posed by Earth’s atmosphere and climate. According to SpaceX, the reduction in the cost of launching its rockets makes space a perfect alternative for AI data centers. The plan. He project that has been presented to the US Federal Communications Commission (FCC) consists of placing these satellites in sun-synchronous orbits between 500 and 2,000 km high. That would allow the satellites to act as interconnected nodes among themselves and also with the satellites of the Starlink network through optical laser links. The plan, of course, will have to overcome important challenges like refrigeration. Dissipating the heat generated by millions of chips in the vacuum of space is complex, since satellites act as “natural thermoses.” And radiation, what? The problem of cosmic radiation will also have to be solved. Advanced chips are very vulnerable to processing errors caused by energetic particles. It seems that AI processors are surprisingly resistant to this type of problembut the deployment of such chips on a massive scale in space could introduce new conflicts. On-site repair, nothing. In today’s data centers, if a problem arises, a technician can physically travel if necessary to solve it. In space, physical repair is not feasible, which would force a strategy of assuming that those chips that become functionally damaged will be completely lost. SpaceX would have to continuously launch substitutes to compensate for this “mortality” of components, which complicates logistics and costs. There are optimistic perspectives in this regard, and for some the bills do work out. Kessler syndrome. But above all there is a latent concern in the field of space security. Launching a million new satellites into already congested orbits multiplies the probability of chain collisions, validating the theory proposal in Kessler syndrome. A single major collision could generate a cloud of debris that would take decades to clear, further threatening climate monitoring missions or even global communications. There are already ideas to “regulate orbital traffic” by coordinating it, and SpaceX has its own “situational awareness” system, Stargazeto avoid problems, but of course, no system is completely perfect. air pollution. Without forgetting that the atmospheric impact is equally worrying. Some are estimated 25,000 Starship flightsand the re-entry of satellites that end their life cycle or die prematurely would cause metals and particles to be released into the upper atmosphere. According to experts, these chemical residues could damage the ozone layer and cause uncertain climate consequences. You can’t see anything. The astronomers, who They had already protested about Starlinkthey will have an even bigger problem with this new idea. The threat to astronomy is clear, because given the altitude and size of these satellites, it is likely that they form a bright band visible even to the naked eye, making scientific observation difficult and even changing the way we see the sunset. Orbital computing may have advantages, but before launching it we should remember that space—especially the space we see—is a shared and finite resource. In Xataka | Starlink’s dominance in space begins to move: another company already has permission for a constellation of 4,000 satellites

the new promise that a Singapore company proves

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There are short journeys that, even today, continue to depend on slow ships or air infrastructure that does not always make sense. In that middle space, a Singapore-based company has started to test a different alternative: a vehicle capable of moving at high speed without completely taking off from the water and without needing an airport. This is not an experimental concept, but rather an industrial program with a calendar, partners and routes being studied for 2026. What type of vehicle is it exactly? The proposal is specified in the AirFish Voyagera device developed by the Singaporean company ST Engineering AirX that does not quite fit into either the boat or airplane categories. It is a type vehicle wing-in-ground (WIG) that moves just a few meters above the surface thanks to the so-called ground effect, an aerodynamic phenomenon that compresses the air between the wing and the water, generating additional lift and reducing resistance. This principle promises to reach speeds of around 185km/h, and reduce resistance compared to conventional maritime options. The project advances. The public presentation took place at Singapore Airshow. According to the company, the vehicle is in the process of classification with Bureau Veritas since 2024, an international classification and certification society that must validate its safety before any regular operation, and whose resolution is expected in mid-2026. In parallel, the company has closed agreements with maritime transport operators to start services from the second half of that same year, always conditional on regulatory approvals. The first specific route on the map. The most immediate agreement places the operational debut on the route between Singapore and Batam, in Indonesia, where the operator BatamFast plans to use a unit of the AirFish Voyager. ST Engineering places this start in the second half of 2026. It is estimated that the vehicle could complete this journey in around 25 minutes thanks to speeds, well above the usual times of conventional ferries. If this schedule is confirmed, the connection would become the first commercial route in the world operated with WIG technology. The next deployment front is in India, where the operator Wings Over Water Ferries has announced its intention to lease and commission up to four units of the AirFish Voyager from the end of 2026. The initial strategy targets coastal states with strong tourism and regional transport demand, including Andaman and Nicobar, Lakshadweep, Maharashtra, Gujarat, Goa, Andhra Pradesh and Tamil Nadu. In addition to the operation, the agreement contemplates exploring local assembly, manufacturing, training and maintenance capabilities, in line with the industrial initiatives promoted by the program. Make in India. The regulatory and technical barrier. Beyond speed or agreements with operators, the determining factor continues to be the certification framework. The company proposes that the AirFish Voyager be governed by maritime standards, a decision that would reduce infrastructure requirements and facilitate its integration into existing coastal routes using conventional port facilities. However, as we say, you still need to complete your certification process, an essential step to start providing any commercial service. Images | ST Engineering AirX In Xataka | The Strait of Malacca is not enough: China’s new obsession is to prevent the US from confiscating its ships

collagen supplements are not delivering what they promise

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For years, we have been sold collagen as some kind of shortcut to youth. It seemed that it was enough to cast a tablespoon of coffee powder, take one capsule a day either join the latest fashion routine on networks to, supposedly, stop the clock. Creams, supplements and drinks have ended up making this protein the main protagonist of current anti-aging discourse. However, that narrative is beginning to crack. More and more scientific evidence, supported by dermatologists, agrees that collagen supplements do not work as we think. In many cases, there is not even clear evidence that they do anything. The gap between what marketing promises us and what science really says is today greater than ever. Collagen, under scientific review. The notice does not come from just any blog or from a passing criticism; It comes straight from academic dermatology. According to ScienceDailyspecialists insist that there is no conclusive evidence to support the use of these supplements to effectively combat skin aging. Dr. Farah Moustafa, dermatologist and professor at Tufts University, she is very clear about it: “Oral collagen supplements are not currently recommended to treat skin aging, although they may be considered alongside other more effective and better-studied interventions.” A good melon has opened. The debate does not center on whether or not there are favorable studies, but rather on what type of studies support these claims. As Moustafa explainsafter reviewing 23 clinical trials, a pattern that gives food for thought was detected: Studies with positive results were usually of low quality or paid for by the brands themselves. The most rigorous, independently funded studies found no real benefits from taking collagen. In other words, when the level of scientific demand is raised, the promised effect is diluted. Everything is born from a misunderstanding. Much of the success of collagen is based on an idea that seems logical but is false: “If I lose collagen, I eat it and get it back.” But the body is not a reservoir that is refilled like this. It is true that collagen is key since It represents 30% of our protein and supports skin, bones and tendons, and it is also true that over the years we make less, which brings wrinkles and sagging. The mistake is in believing that ingesting it means sending it directly to the face. At Tufts Universityremember that the digestive system It breaks everything down into small pieces (amino acids) before absorbing it. Once inside, the body distributes these pieces according to its biological priorities (such as organs or muscles), which do not always coincide with our desire to look better. There is no way to guarantee that this “material” end up in the dermis. Reformulation of the message. Seeing this biological obstacle, the message has been mutating. They no longer just sell plain collagen; Now they talk about hydrolyzed collagen, peptides, marine or even vegetable. The idea is to sell you that, if the body does not absorb the entire protein, perhaps it will make better use of these loose pieces. Even so, the data continues to be taken with a grain of salt. Although some studies find modest improvements in the hydration or elasticity of the skin, most of these works are small in size, analyze supplements that contain other added ingredients (vitamins, minerals) and do not allow the real effect of collagen to be isolated. Furthermore, even in the best case scenario, there is no control over where that newly synthesized collagen will be used. But there is an added problem. Beyond effectiveness, dermatologists warn about another less visible aspect: the safety and control of supplements. According to Dr. Moustafacollagen supplements, especially those of marine origin, can be contaminated with methylmercury. Added to this is a structural problem, supplements do not go through the same controls as medications. According to the American Academy of Dermatology, cited by ScienceDailymany of the supplements available do not have third-party verification, do not clearly detail their ingredients, and have not been previously evaluated for safety or effectiveness. However, this regulatory gap is not exclusive to collagen; we can also observe it in stem cell supplements in a strategy known as scienceploitation. So what do dermatologists really recommend? Experts do not say that you should stop taking care of yourself, but rather that you should go back to what has been proven. According to dermatologists consulted by ScienceDailythe best tricks are the usual ones: Use sunscreen daily to prevent UV damage. Regular application of topical retinoids at night. Balanced diet, rich in protein and vitamin C. Avoid tobacco and reduce sun exposure. Collagen as a cultural phenomenon. The rise of collagen cannot be understood from biology alone. This boom also responds to a increasing aesthetic pressureamplified by social networks, filters and discourses of constant self-optimization. The obsession with “staying young” does not affect everyone equally. The anti-aging industry disproportionately targets women, reinforcing the idea that aging is a flaw that must be corrected. In this context, collagen becomes not only a supplement, but a symbol of a social demand. While science advances cautiously, the market accelerates. The global skin care industry moves hundreds of billions of dollars, and constantly needs new ingredients, promises and narratives to sustain its growth. The end of a myth (or at least, an exaggerated promise). The current medical consensus does not state that collagen is useless, but rather that it is not the miracle it has been sold. It does not rejuvenate the skin on its own, it does not directly reach where it promises and, in many cases, it offers benefits that are difficult to distinguish from a good general diet. In the end, real health is less glamorous than a bottle of shiny powder: it’s about perseverance, good habits, and understanding that aging is not a mistake that can be solved with capsules. Perhaps the problem is not collagen itself, but our need to believe that youth can be bought and bottled. Image | Unsplash and freepik Xataka | The … Read more

There are fewer and fewer North Koreans fighting with Russia in Ukraine. An army has arrived with an irrefutable promise: Cubans

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For months, reports about foreign fighters in Ukraine indicated to North Korea as the main source of soldiers sent to support Russia. Then there was official confirmation by both nations. Quietly, however, that balance is shifting in surprising ways. On the board of the war in Eastern Europe, another country begins to displace Pyongyang in the role of largest supplier of troops to Moscow, an unexpected turn that reveals both the fragility of Russia and the depth of its authoritarian alliances. The Cuban front. What began as a regional invasion has transformed into a global war, in which Russia not only faces Ukraine and its Western allies, but also mobilize a network of regimes to sustain the war effort. Among them, Cuba emerges as an unexpected actor: according to Ukrainian estimates, up to 25,000 Cubans They could join the Russian front, becoming the largest foreign force in Ukraine, above the North Korean contingents. For the Kremlin, the usefulness of this formula it is evident: The casualties of foreign fighters do not generate internal protests, do not require compensation to Russian families and reduce the political cost of the conflict. In a country with more than one million estimated casualtiesattract soldiers overseas It is also a matter of strategic survival. A formula that is difficult to reject. The main motivation for many Cuban recruits is simple: economic. On an island mired in one of the worst crises in recent decades, where the average salary barely exceeds 20 dollars a month, the promises of charge $2,000 a month They fight any ideological objection. Some accept the contracts convinced, others are deceived with job offers in construction or factories, to discover upon arriving in Russia that their destination is the battle front. Analysts like Cristina López-Gottardi they point out that the economic attraction is irresistible, but they also highlight the political dimension: Havana obtains income from remittances from combatants and consolidates its alignment with Moscow, presenting it as a gesture of “revolutionary loyalty” and, incidentally, a symbolic challenge to Washington. Experts point out that the regime seeks reinforce your narrative anti-American, presenting participation as an act of internationalist solidarity, although in practice it is a source of foreign currency in times of hardship. Mercenaries, coercion and globality. The Cuban presence is part of a broader trend: the growing Russian dependence on foreign fighters. According to intelligence data, in 2025 almost half of the prisoners captured in Ukraine They were not Russian citizenswhen in 2022 they barely represented 1%. From Africans recruited under threats of deportation, until deceived students With false job offers in “shampoo factories”, including North Koreans sent as cannon fodder, Moscow turns to a whole mosaic of forced soldiers or mercenaries. In this sense, the Cuban contribution not only strengthens the Russian lines, but also magnify the image of a war waged by an international authoritarian axis that includes Iran, Venezuela, North Korea and now Cuba, sharing weapons, technology and experience on a battlefield converted into a laboratory for modern warfare with drones, electronic warfare and new combat tactics. Cuba as a diplomatic target. Cuban involvement in Ukraine has not gone unnoticed by the United States. The Trump administration has decided to use it as a central argument in his diplomatic offensive against Havana at the UN. An internal State Department cable, dated October 2, instructed US delegations to pressure allies to vote against the traditional annual resolution demanding an end to the US embargo on Cuba. Year after year, the measure has had overwhelming support (in 2024, 187 countries voted in favor and only the United States and Israel against), although Washington hopes to reduce that margin by presenting evidence that the Miguel Díaz-Canel regime has become in active accomplice of Russian aggression, with between 1,000 and 5,000 fighters deployed on the front. In the documents is underlined that Cuba “has failed to protect its citizens from being used as pawns” in the war, and the regime is accused of “undermining democracy” in the region, particularly through its alliance with Venezuela. The embargo and sanctions. Washington’s strategy seeks to disarm the Havana narrative, which presents the embargo as the root of all their evils. The diplomatic cable instructs to highlight the corruption and incompetence of the Cuban government, in addition to highlighting that the economic problems do not derive from the sanctions, but from its mismanagement. Trump, upon his return to the presidency, has hardened the restrictions: has reinstated Cuba to the list of countries sponsoring terrorism, has further limited financial transactions and has sanctioned third countries that collaborate with Cuban doctors abroad. Faced with this pressure, the Cuban regime accuses Washington of seeking a pretext for aggression and even instrumentalizing the anti-drug fight in the Caribbean as an excuse to increase tension. That said, the backdrop seems different: the combination internal collapse and military alliance with Moscow places Cuba at the epicenter of the geopolitical struggle between Washington and the authoritarian bloc. Military school. Beyond the diplomatic balances, what worries many analysts is that the war in Ukraine has become an involuntary academy for allied armies of Russia. Every foreign contingent that steps on the front learn first hand the techniques of the first great drone war in history: from swarm operations to electronic warfare. As warns Bill Colefounder of Peace Through Strength Institute“the real danger is not the thousands of Cubans or North Koreans sent, but what they learn and then export to other conflicts in Latin America, Africa or Asia.” This transfer of war knowledge turns war into a multiplier of global instability, with authoritarian regimes absorbing tactics and adapting them to their own scenarios. The Cuban paradox. The participation of thousands of Cubans in the Ukrainian war also reveals a paradox: while for the Havana regime it represents both a source of foreign currency and a reaffirmation of its anti-American identity, for Moscow it is a cheap solution and politically comfortable to internal wear and tear, and for Washington an opportunity to intensify diplomatic pressure … Read more

His new promise is based on reinforcing our immune system

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Messenger RNA vaccines (RNM) became known for their role in the fight against COVID. Years after pandemic, this technology is still subject to the interest of the scientific community, not only for its ability to fight viruses but also as a new hope against very different diseases. Diseases such as cancer. A step in the laboratory. Now, an experiment conducted in mice has shown the potential of a new formula against tumors. It is a HRNM -based vaccine capable of boosting the effects of inunotherapy on these rodents. Success is an impulse to a formula that could help us fight various types of cancer. A name, several diseases. We usually see cancer as a disease that can manifest itself in different parts of our body, but the most complex reality. To the point that it is more convenient to understand this disorder as a variety of diseases, each with its characteristics, but also with specific treatments. That is why finding a universal treatment against cancer is even today, a chimera. This vision, Explain the responsible team From this new vaccine potential, it applies to the way in which science seeks new treatments of this type. This can be done well causing these vaccines to focus on a “objective” protein expressed in the cancers of multiple people, well adjusting each formula to specific proteins, present in the tumors of each patient. Third way. The new treatment offers a kind of “third way.” Instead of focusing on proteins of the tumor, what it seeks is to strengthen our immune system, “as if they were going to fight a virus,” says the team. The formula starts from a previous work, in which a team of the same laboratory created an RNM vaccine capable of “reprogram” the immune system to attack glioblastoma (a brain tumor type particularly aggressive). This vaccine was based on a compound adjusted to the characteristics of the patient’s tumor to be treated. The new formula tries to “universalize” this answer. “Promising” results. The results when testing the new vaccine in melanoma mice were “promising” even in cases of tumors generally resistant to treatment. As explained by the team, the new formula combines the RNM formulation with a new drug based on immunotherapy called PD-1 inhibitor. This treatment is a monoclonal antibody that seeks, in Team words “Educate” the immune system to make you think that tuum is an external body to eliminate. The details of the study were Published in an article In the magazine Nature Biomedical Engineering. The new hope of the MNA. HRNM -based vaccines did not stay in the pandemic and have now become an important focus on oncological research. For now they are just a promise: the positive results in preclinical and clinical trials are hopeful but do not guarantee the arrival of new treatments in the short term. Nor do they guarantee the success of these new drugs. In Xataka | The patient who has survived 12 different tumors and hides the “holy grail” of the fight against cancer Image | Tankilevitch polyina

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