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a macro study reveals the exact heart rate to minimize the risk of stroke

May 11, 2026 by usatoday24

Nowadays we monitor our vital signs, such as heart rateon the wrist itself thanks to smartwatches and activity bracelets that constantly tell us how many beats per minute our heart beats at rest. This information is vital, since traditionally it is believed that having an excessively high number is an indication that something bad is happening in the heart. The middle point is the best. In medicine, both due to excess and scarcity, we can find a scenario that is pathological, and that is why, although we relate high heart rate as something very negative, we must keep in mind that having them excessively low It is not always positive. This is the main conclusion of a pioneering research presented at the European Stroke Organization Conference, and although it has yet to undergo review, its foundations are extraordinarily solid, based on the analysis of 460,000 participants over 14 years. Crossing data. Of all these people analyzed, the researchers were especially interested in their medical histories and the diseases they presented, highlighting the registration of a total of 12,290 cases of stroke during the decade and a half of follow-up. But what is truly important here is when these records were crossed with the resting heart rate data of the participants, discovering a very clear pattern by showing a risk graph in the shape of a ‘U’ and not a straight line. Its meaning. The fact that a graph with this shape has been generated tells us that the optimal heart rate level is between 60 and 69 beats per minute, since these people were the ones with the lowest risk of suffering from a stroke. The problem is that, when the heart rate at rest exceeds 90 bpm, the risk of suffering a stroke increases by up to 45%, both ischemic and hemorrhagic. But in the case of having excessively low heart rate, the risk also increases, so we cannot be completely calm if we have 50 bpm at rest. Atrial fibrillation. Until now, medicine was very clear that severe arrhythmias such as atrial fibrillation They were determining risk factors for suffering a stroke. But now this study adjusted the data specifically to separate people with and without atrial fibrillation, showing that resting heart rate is, on its own, an independent prognostic marker. Because? Although this study gives us a lot of information, the reality is that previous medical literature already offered a fairly rigorous explanation as to why a low or high heart rate had implications for strokes. In this case, an excessively low frequency can alter cerebral hemodynamics, causing blood to pass too slowly through the brain, and facilitating the formation of thrombi in certain contexts, especially when there are more risk factors. On the other side of the scale, when the frequency is chronically high, we have the layer of our blood vessels exposed to blood flow, exposed to constant mechanical stress that favors inflammation, hypertension and vascular damage, as has been shown in previous studies. Preventive medicine. These findings are good news for patients, especially older patients, since it is a new parameter that can predict the possibility of something as serious as a stroke occurring. This allows, especially in primary care, to better control the heart rate and not miss when it goes too fast or too slow, since the consequences can be fatal. Images | freepik In Xataka | We cannot predict a stroke, but we can avoid its main risk factors: reducing the danger is in our power

The chip crisis is leaving no stone unturned. Motherboards seemed untouchable, but their time has come

May 11, 2026 by usatoday24

The RAM memory crisis is no longer a RAM memory crisis. Emulating what happened at the end of 2020, we are immersed in a new component crisis that, unlike that of five years ago, has not been caused by a combination of factors but by something very specific, the AI industry. It is very difficult to buy any component with a NAND chip at a fair price and it is something that It is affecting all devices. The PC was already affected, but now the four largest motherboard manufacturers predict the worst. A shipment contraction of almost 30% on motherboards. Focused away from consumption. To understand why the crisis is impacting motherboards when, a priori, they could continue to be produced at the normal price, you have to look a little further. Nvidia and AMD are fully focused on the artificial intelligence segment, pausing their consumer GPU renewal plans for 2060. For example, the RTX 50 Super series neither is nor expected for this year and already speaks of some RTX 60 that would be released by 2028. Intel, for its part, also recently confirmed that consumer processors were taking a back seat in its priorities, since They were going to focus on the Xeon for servers and data centers. It is a strategy aligned with the great objective: become the great American foundry and sneak into the conversation they dominate TSMC and, at a good distance, Samsung. Update paused. With three manufacturers of the three key components having the focus away from the user and with the three main memory manufacturers (Samsung, Micron and SK Hynix) focused on memory for AI, what had to happen is happening: not only is buying new parts for a PC very expensive, but sometimes there is no stock, and the enthusiastic user who renews a PC every generation has no reason to do so, even if he had the deepest pockets in the world. That is why they are putting these PC updates on hold, clinging to current devices that they will have to get more out of because the market, directly, is broken. motherboards. And if PCs cannot be built and the companies that build computers themselves have already reported that they are having problems due to the price of RAM and storage, the foundation of the computer stops making sense. That’s where motherboards come in as those ‘foundations’. As we read in Tom’s Hardwarethe four main ones in the market (Taiwanese, too) are shipping units well below expectations. According to the media, ASRock will ship 37% fewer boards, Asus 33% less, MSI 24% less and Gigabyte 22% less. In total, the big four in this segment will ship 28% fewer units than they moved last year, which will push prices up for components that had not yet suffered the blow. In fact, the fact that the four companies are reviewing its shipping and sales predictions for this period could cause a parallel crisis. In a hypothetical scenario (because at the rate we are going it is very difficult for the crisis to be resolved in two days), if tomorrow it is possible to buy RAM and SSD memory at their normal price and people start building PCs again, what would be missing would be motherboards, so the shortage would cause price spikes. No end in sight. But hey, I already say that it is a hypothetical scenario because everything indicates that the NAND chip crisis is not even close to being resolved in the short term. The hyperscalers have the vast majority of the team unemployed full time, but they continue to demand new platforms to continue developing AI. That is why the entire segment has turned its head to look only at a market that is guaranteeing them an unprecedented peak in income. And no, don’t think that Asus, MSI, ASRock or Gigabyte are having a hard time, since they point that manufacturers are also offsetting declining profits in the user segment with growth in data center platforms. In the end, although ‘rare’, they are computers that need motherboards. When will the storm pass? Namely. There are sources that point to 2027 to start seeing green shoots, but others go to 2030 and Nvidia, which in the end has some hand in this mess, considers that there are seven or eight years of wild investment left. Image | Sitraka, Luis Gonzalez In Xataka | There is a shortage of RAM because of AI. That will make your next console much more expensive.

The day a small dispute over the Tab key ended up revealing the big difference between IBM and Microsoft

May 11, 2026 by usatoday24

There are companies that have lived so long that their story is no longer told only through big launches, acquisitions or business battles. It is also told in small details, in those seemingly minor scenes that, seen over time, end up explaining an era better than many official statements. Microsoft and IBM belong to that category. Their paths crossed when the personal computer It was still defining many of its rules, and some of those discussions, even the most minute ones, revealed something deeper than a technical difference. The scene has been recovered Raymond Chena veteran Microsoft engineer who has been linked to the evolution of Windows for more than three decades and who for years has gathered in The Old New Thing some of the most curious stories of the Windows and Microsoft ecosystem. Chen does not present the episode as his own experience, but as the memory of a colleague who was assigned to the IBM offices in Boca Raton, Florida, during the collaboration between both companies in OS/2. OS/2 was much more than just another name lost in software history. IBM and Microsoft presented it in 1987 as an operating system designed for the IBM PS/2 line and intended to take the PC beyond the limitations of DOS, with a more modern base and ambitions typical of computing that was beginning to look further afield. The collaboration came from a joint development agreement signed in 1985when the project was not yet called OS/2. In that context, any interface decision could have more weight than it seems today, because many conventions of the modern PC were still being established. Two very similar and also very different companies The problem is that that collaboration brought together two companies at very different times in their lives. Microsoft was still a young company, very attached to software and a more direct way of working, while IBM arrived with decades of history, a huge structure and the weight of a much more established corporate culture. Chen sums it up like a clash of perceptions: from Microsoft, IBM was seen as trapped in a meaningless bureaucracy, and from IBM, Microsoft was seen as undisciplined hackers. Its own nuance is important: there was probably something right in both readings. The specific anecdote begins in Boca Raton, where a colleague of Chen’s worked assigned to the IBM offices. At some point a discussion arose about which key should be used to move from one field to another within the dialog boxes. The Microsoft engineer made a decision that is almost invisible to us today because of how assumed it is: use Tab for that function. IBM was not convinced by the choice and asked that the matter will be escalated to the person responsible from that engineer in Redmond, a reaction that already hinted at the extent to which the discrepancy went beyond the key itself. In Redmond, the petition was not understood as an issue that deserved to be raised much higher. The engineer’s manager responded with a very clear idea: if Microsoft had sent someone to Boca Raton, it was so that they could resolve decisions like that there. Translated into a more institutional tone, the message that came back to IBM was that Microsoft supported the choice of the Tab key. IBM’s reaction was just the opposite. Instead of shutting down the discussion, the company elevated her up its own chain of command to a vice president, several levels above those who were programming. IBM had not only elevated the discussion, it also wanted a response to the same hierarchical height. If its vice president was against using Tab, Microsoft had to find someone equivalent to argue the opposite. Chen’s colleague then responded with a wonderful phrase, translated here into Spanish: “Bill Gates’ mother is not interested in the Tab key“It was a pretty nice way of saying that it wasn’t worth going up the corporate elevator anymore. It wasn’t necessary to go to the heights of Microsoft to decide how to move from one field to another in a dialog box. The phrase worked, at least according to Chen’s account: apparently, after that response, the discussion ended and Tab remained the key chosen to advance between fields. The detail is funny because today almost no one stops to think about it: we simply press Tab and wait for the cursor to jump to the next available space. But there was a time when that convention was not so closed. And what we see in this story is just that: a small interface decision turned into a clash between custom, hierarchy and technical criteria. The exact date, however, does not appear in Chen’s account. We know that the episode belongs to the years of collaboration between Microsoft and IBM around OS/2, whose joint development agreement dates back to 1985 and whose Public arrival occurred in 1987. This allows us to limit the context, but not to set the day or year of the discussion by Tab. There are many decisions behind the products and services we use every day. Some are huge and visible, but others fly under the radar: a key, a gesture, an interface convention that we learn once and repeat for years without wondering where it came from. Surely many have a story behind them, although most never transcend and others would not be particularly interesting. From time to time, however, an anecdote like this appears and allows us to peek into something we almost never see: how things are handled within the companies that build the technology we use. Images | Kaatvrtg (Wikimedia Commons) | In Xataka | In 1993 Microsoft created Encarta to revolutionize knowledge. Twenty years later it would be devastated by a tsunami

Some bones found in Mexico have revealed a new facet of the Mayans: traders of “exotic” dogs

May 10, 2026 by usatoday24

We knew that the Mayans wove important commercial networks and? they used to market with food or items as precious as jade, obsidian, cocoa either shells. What we did not know is that in their markets there was another good as or even more precious that led sellers to invest resources, time and effort in transporting it over hundreds of kilometers: dogs. Just as we are willing to pay large sums for certain pedigree species, the Mayans of the Classic period (200-900 AD) they traded dogs that they fed with care. At least that’s what it suggests. a new study. Some lost bones. Moxviquil and Tenam Puente They are two Mayan sites located in Chiapas where, some time ago, archaeologists found remains of bones. So far nothing surprising. The curious thing is that among the remains there were fragments that belonged to dogs and deer, a valuable material that has allowed Dr. Elizateb Paris, from the University of Calgary, to compare their chemical characteristics to find out where the animals came from. The conclusions has published them in Journal of Achaeological Science and they leave a few surprises. An isotopic map. What Paris basically did, with the help of the rest of the colleagues who signed he paperwas to analyze the remains of strontium preserved in bones and tooth enamel. The reason is very simple: for researchers it represents a key clue to understanding what humans (or animals, in this case) ate and drank when they were alive, which in turn reveals the places they passed through. Once this information was collected, Dr. Paris and her colleagues compared it with a isotopic map which shows the proportions of strontium in all of Mesoamerica. What did they discover? That while the deer bones showed strontium levels consistent with the area in which they were located, suggesting that they were probably wild animals hunted in the local forests; The skeletons of the dogs told a very different story. “We discovered that the dogs in our sample were not from the area, but came from Mayan kingdoms in very distant lowlands,” share the anthropologist. The second surprise. It wasn’t the only thing Paris found out. The bones located in Moxviquil and Tenam Puente held yet another surprise. By thoroughly analyzing the carbon and nitrogen isotopes of the bones, the researchers discovered that the dogs enjoyed a privileged diet. So much, in fact, that they largely ate the same foods as humans: corn and meat. The archaeologists admit that the dogs may have been searching through the remains of what their owners consumed, but they also believe that this protein-rich diet was the result of “deliberate feeding.” In summary: it is not only that the dogs identified in the Mayan sites had traveled long distances, their diet was also taken care of. The question is… Why so much effort? The answer: trade. For Paris and his colleagues, the explanation is clear. The remains of Moxviquil and Tenam Puente reveal that Classic Period Mayan societies “traded” live dogs. And they were even willing to move them hundreds of kilometers, such as those between the central regions of Chiapas and the north of the Yucatan Peninsula. This not only shows that pre-Columbian peoples had customs not so different from those we maintain in 2026. It also confirms that they created “solid” marketing networks in Mesoamerica. The great unknown. The study de Paris helps us better understand Mayan society (and trade), but it leaves up a fascinating question: Was there any race that was especially valued? To which did the bones located in Chiapas belong? From the University of Calgary they recognize that this is still a mystery that they have not been able to completely clear up. At least for now. Researchers are already working with DNA samples to clarify it, although they have a hypothesis. The anthropologist remembers that the Aztecs had several special races and among them was the Xolotizcuintli (xolo), a dog that can be found in various sizes, but is always characterized by the lack of hair and premolars. “This breed could be present in the Mayan site, since the selective breeding of these dogs causes mutations that give rise to a strange shape in the teeth, a characteristic that many dogs in Chiapas have,” reveals university before remembering that there are indications that dogs were “highly appreciated” creatures among the Mayans. And not only because of what we now know about the distances they traveled or their diet. They are preserved representations in which rulers appear in hammocks with small dogs. Images | Secretariat of Culture of Mexico City (Flickr) 1 and 2 and Alex Azabache (Unsplash) In Xataka | We had always thought that the Mayans disappeared due to an environmental “apocalypse.” Turns out we were wrong

Science has a new magic number (and a golden rule about how to give them)

May 10, 2026 by usatoday24

One of the mantras that has been repeated on numerous occasions is that yes or yes you have to take 10,000 steps a day in order to enjoy good health. Our activity bracelets are partly to blame, since they even give us prizes for reaching this goal or remind us that we have not managed to reach it. But this number was born as a marketing strategy in Japan in the 60s and now science is making more and more nuances with respect to this figure to give more importance to how it works. The study. The most recent evidence we have in this regard is found published in the prestigious magazine The Lancet in July 2025, which combined 57 studies and analyzed 31 different cohorts of people in order to reach the most robust conclusion possible. The results. In short, we can affirm that the mantra of taking 10,000 steps is more than dismantled, since already reaching 7,000 steps a day means having 47% less mortality from any cause, and 25% less risk of suffering from cardiovascular disease compared to those who only take 2,000 steps a day on average. This is what different reference organizations in the world of cardiology also point out, such as the American College of Cardiology, who claim that the health benefit follows a curve in which the biggest drop in mortality risk occurs before reaching 10,000 stepssetting the new goal at 7,000-8,000 steps per day. It’s not worth the walk. For many, all the steps on the physical activity counter are the same, whether they are the first ones in the morning to go to the bathroom or the ones we take while window shopping at the mall. But the reality is that they are not ‘productive’ steps, since to reach these 7,000 steps that do not ensure a reduction in mortality, the intensity of the walk matters much more than the number. How to get here. Here Harvard Health sums it up perfectly aim that walking becomes a moderate aerobic exercise only when we increase the intensity until we notice a higher pulse and more demanding breathing. To get an idea, if we are here, we can put ourselves in the situation where we can still speak, but only in short phrases. If we want to have a figure on the table, we can stick to reaching 100 steps per minute, which can be around 4.5 km per hour if we also want to do it on a treadmill in the gym. It’s important. Doing these steps daily is important, since it has been shown that adequate walking speed is directly linked to a significant reduction in cases of heart attack, stroke and heart failure, especially in people who already suffer from hypertension. Images | Drazen Zigic in Magnific In Xataka | Tell me how fast you walk at 45 and I’ll tell you how your brain ages: The science behind the ‘sixth vital sign’

The problem with eating chocolate at 11 at night is not the calories, it is what it does to your sleep

May 10, 2026 by usatoday24

There are people who follow authentic rituals before going to sleep, such as a good shower to release all the tension of the day, but also take a little black chocolate so you can sweeten your mouth before going to sleep. A practice that for many is something that is an aberration, but to know if it is really a bad idea to do it, we have to turn to science and the studies that exist about chocolate. A principle against. For the detractors of nighttime chocolate, the enemy is not sugar as such, but the chocolate itself and how rich it is in the methylxanthineswhich are alkaloids that stimulate the central nervous system. And here are two that stand out above others, such as the caffeinewhich is quite well known, and theobromine, which is the main stimulant in dark chocolate. Here the scientific reviews they point that these substances act by blocking the receptors where adenosine binds to act. And it is no wonder, because adenosine is the molecule that it accumulates in our brain throughout the day to generate “sleep pressure.” But if methylxanthines block the point where they have to bind to act, the brain does not receive the signal that it is tired. Your problem. Although it is true that theobromine is “milder” than caffeine, its half-life in the body is long. This means that that 11pm chocolate could still be blocking your desire to sleep at 2am, increasing sleep latency and causing more nighttime awakenings. The importance of time. Science has now stopped looking only at calories to focus on chrononutrition, since it is suggested that chocolate influences circadian rhythms depending on the time at which it is taken. Here the studies they point Because chocolate can be a great ally to resynchronize the biological clock if it is consumed during the active phase in the morning, but taking it outside of this phase, when the body is preparing for rest, makes it difficult to synchronize our peripheral clocks. In short, we are sending contradictory signals to the body. Not everything is negative. In science there are not only extremes, but we can find a great spectrum of grays in the middle. This is because there is also evidence that qualifies the message that chocolate causes insomnia, because in animal models cocoa can improve certain sleep disorders induced by chronic stress. This suggests that, in high-stress contexts, the antioxidant and neuroprotective components of cocoa could help adjust the sleep-wake rhythm. However, researchers warn that this benefit is observed when cocoa is part of the general diet, not necessarily when it is consumed as a “bomb” of sugar and stimulants just before turning off the light. It is not universal. The effect of chocolate does not occur in everyone in the same way, meaning that each person can experience it differently, depending on the amount of chocolate consumed and also on sensitization. We must keep in mind that each person metabolizes at a different rate, so there will be people who can eat a lot of chocolate and these molecules will not affect them at all. Images | freepik In Xataka | Something strange is happening with the chocolate crisis in Spain: households consume less, but business improves

two satellites have come within just 3 meters and no one knows why

May 10, 2026 by usatoday24

Two russian satellites They have been observed carrying out very sophisticated behaviors that attract attention for two reasons. On the one hand, due to its commendable technical difficulty. On the other hand, because they could have a hidden purpose that, for the moment, has only been possible to speculate on. It’s not a coincidence. The American space monitoring company COMSPOC has been the one that has caught red-handed Russia carrying out this curious maneuver. As they have explained in your X accountOn April 28, the Russian satellites COSMOS 2581 and COSMOS 2583 approached to within 3 meters of each other. This requires great precision, but also gives a lot of food for thought. More satellites involved. Both satellites were launched together with COSMOS 2582 into low Earth orbit last February 2025. All of them participated in the maneuvers that led to the approach on April 28. Even a subsatellite called Object F was also part of this satellite dance. However, it is true that COSMOS 2582 remained in the distance, just under 100 kilometers away. In a simulation carried out by COMSPOC the entire maneuver can be seen perfectly. spying on spies. Russia launched these satellites with some secrecy. At no time was it indicated what its function could be. However, now that this curious maneuver has occurred, there are certain suspicions. And, in reality, everything is reminiscent of what COSMOS 2542 was seen doing in 2020, another Russian satellite that was detected following a US spy satellite very closely. It is not clear if these new satellites are being tested for the same purpose, but it is undeniable that there could be military objectives behind the mission. If the suspicions are corroborated, considering how much they have improved in accuracy, they would be much more dangerous in that sense. Other countries. In reality, Russia is not the only country that tries this type of maneuvers. As explained from Spaceother great powers have satellites with similar capabilities. For example, Chinese or American satellites have been seen closely following satellites or probes from other nations. Basically, spies are spied on too. Other possibilities. It should be noted that, in reality, proximity maneuvers They can also have other purposes. For example, they can be used to carry out maintenance work from one satellite to another or to remove debris. In fact, it is a very useful maneuver to being able to clean up space debris that is a bigger problem in low orbit every day. In short, we have no idea what those Russian satellites were doing. There has been a lot of room for speculation, but it could be anything from a hidden military mission to something completely harmless. Image | Bill Ingalls In Xataka | Russia wants to know how trips to Mars will affect us, so it is going to launch a thousand flies and 75 mice on a rocket

The reality is that only 0.1% wins and almost everyone loses

May 10, 2026 by usatoday24

In recent years, so-called prediction markets such as Kalshi and, above all, Polymarket. Here you can bet on all kinds of things happening today and get rich, or that’s what they advertise. The reality is very different. 67% for the 0.1%. A Wall Street Journal analysis has revealed that in Polymarket, as in the world in general, only a small group shares most of the profits. The analysis, which covers 1.6 million accounts and took data from 2022, concludes that 67% of all profits generated have been distributed among only 2,000 users, which represents 0.1% of the total. In figures, we are talking about about 500 million dollars, so each of these users amounts to 250,000 dollars. Not bad. The rest. What is left over from the profits is much more competitive and is distributed among approximately a third of the total users analyzed. The striking thing is in the largest portion of the pie, which are users who not only are not earning, but are losing money. At Kalshi, a competitor of Polymarket, the ratio of profitable to unprofitable users is 1 to 2.9. That is to say, for every person who earns money, there are almost three who are losing. In other words, many finance the party of a few. The winners. Who is behind that 0.1%? They are not ordinary people with a good eye, but professional traders and ‘quant firms’ that work as a team and buy data sets in real time at very high prices. With this information they feed algorithms that execute tens of thousands of operations a day, hunting for price microvariations that a normal user would miss. Many also act as ‘market makers’: they constantly set purchase and sale prices, pay fewer commissions and even charge incentives for providing liquidity. The losers. The typical Polymarket user is in the red between $1 and $100, but of all of them there are 10% with losses of $4,000 on average. They are casual users who make decisions guided by intuition or by what they want to happen, based on superficial information. What ends up happening is that your money ends up in the hands of that small professional group. Disguised gambling addiction. Prediction markets like Polymarket have managed to give a financial appearance to what is essentially still a game of chance. Lifelong bets are presented as informed investments, disguising gambling addiction under trading language. We can call it whatever we want, but the reality is that for many users, the losses are very real. Image | Xataka with Gemini In Xataka | We have a problem with Polymarket: it has become the Bet365 of geopolitics without any regulation

Researchers point out that the first 1,000 days in a person’s life are key to our life and memory

May 10, 2026 by usatoday24

Something quite popular among society in general is that the youngest children are true sponges that absorb everything that is around them, this being fundamental for their adult personality. Here are some experts who specifically point out that the first 1,000 days of life are They are practically everythingsince a temporary window opens that can largely determine the intelligence, health and social skills of the future. But… is it like that? There are questions. Scientific evidence calls for pressing the brakes, since, although the overwhelming importance of these first stages of life is not denied, researchers are beginning to warn against absolute determinism. And all this because, although the first 1,000 days are a critical window, the next 1,000 days They are just as crucial. The first days. What happens up to two years in the brain, the truth is that it is fascinating, because here some research they point specifically because early feeding influences physical development and long-term metabolic health. But in addition, the attachment bond with an adult figure traces the physical, neural, cognitive and socio-emotional trajectories, meaning that, if this attachment does not exist, many problems can arise. But also, listening to caregivers, such as parents, speaking, singing and interacting, lays the foundations for the neural networks linked to language and the communication skills that we will have in the future. The effect on memory. We often think that memory is the adult ability to remember knowledge that we have ‘put’ in our brain ‘drawer’, but in childhood memory It is a basic neural learning mechanism and identity construction. In these cases, babies record constant sensory and emotional information, such as smells, voices, affective responses, and the receiving context. And precisely, experts point out that if at this stage the child is correctly stimulated and takes in the memories well, the brain “trains” its synaptic circuits, making learning new skills much easier in the future. It is literally as if a base is being generated (which we will not remember) to generate new skills in the future by generating very strong neural networks for future memory. We don’t have to be absolutists. Saying that only those 1,000 days determine cognitive and social development is a mistake, since the literature tells us that we are not facing a “closed window”, since human brain plasticity is amazing and does not have a switch that automatically turns off when two years have passed. From here, what surrounds the little ones in the house, the education they receive and also the social interactions continue to have a profound impact beyond 24 months. That is why simplifying the concept to the extreme can lead to a biological determinism that diverts attention from other equally important stages of childhood. Everything that happens. This is where the most recent evidence comes in so we have to focus on what they can be. the “next 1,000 days” which is the period that goes from 2 to 5 years. This preschool stage is not a maintenance period, but rather it is a new golden window of opportunity, since during these years complex motor skills are triggered when starting to walk, for example. But beyond this, language also goes from isolated words to a complex grammar and the ability to narrate and reason. And even social-emotional skills such as empathy or impulse control are also experiencing rapid growth. This is why promoting an environment of safe care and healthy habits in this period is capable of significantly altering and improving development, compensating for the deficits that may have occurred in the first years of life. Images | javi_indy on Magnific In Xataka | One baby, three (biological) parents: a promising fertilization technique that, for now, we will not see in Spain

in Córdoba they even make batteries

May 10, 2026 by usatoday24

Lithium-ion batteries dominate energy storage, from mobile phones to electric vehicles, but they have a big problem: they depend on materials that are scarce, are expensive and are conflictive from a geopolitical point of view. So science takes years looking for alternatives: with more abundant and cheaper elements like sodium or sulfur. In this scenario, a research team from the University of Córdoba has taken a turn of the screw to an agricultural waste to store energy: the pistachio shell. The invention. The Chemical Institute for Energy and the Environment of the UCO has developed a sulfur-based battery that does not require lithium or critical metals such as cobalt, nickel or copper. The cathode is made with pistachio shell converted into microporous carbon that at room temperature physically traps the sulfur inside, preventing it from dissolving in the electrolyte and degrading with use. This lithium-free battery reaches a specific capacity of approximately 803 mAh·g⁻¹ at 1C and withstands more than 1,000 complete charge and discharge cycles with stability. Compared to a commercial lithium ion battery it is capable of storing up to five times more energy per gram of active material. Why is it important. Because it solves the chronic problem of sodium – sulfur batteries: the shuttle effect, such as concludes this paper on the status of this type of batteries. With use, some of the sulfur dissolves in the internal liquid of the battery, passes to the other electrode and destroys the battery. This phenomenon also causes secondary reactions with the electrolyte that accelerate degradation and drastically reduce the useful life of the battery. Pistachio shell charcoal solves this elegantly: its pores are so small that the sulfur is physically trapped and cannot dissolve or migrate, achieving stability for more than 1,000 cycles. Beyond solving this technical challenge of this type of battery, its relevance lies in the fact that this battery does not need lithium, cobalt, nickel or any other critical metal to function. Sodium and sulfur are abundant resources around the world, making this technology a cleaner, cheaper and scalable alternative to conventional lithium-ion batteries, whose supply chain depends on scarce materials concentrated in very few countries. Context. The dependence on lithium and critical metals is not only a cost problem: it is a strategic vulnerability for Europe. Sodium and potassium are significantly more abundant than lithium, making sodium-sulfur systems more cost-effective and scalable for large-scale grid storage, an urgent need in the context of the global energy transition. Added to this is the agricultural context of the Spanish state: according to the Ministry of Agriculture, Fisheries and Food Spanish, pistachio production in Spain grew by 73% in the last year, also driven by the frosts of 2025 in Turkey and Iran, which devastated a large part of the harvest of the main world producers. Logically, this increase has generated an increasing volume of shells as unused waste. IQUEMA’s work not only proposes an alternative battery, but a circular economy model that transforms this waste into a material of high technological value. How have they done it. The manufacturing process of activated carbon follows a relatively simple synthesis route. From the pistachio shell treated with potassium hydroxide at high temperature, they obtain a carbon with a network of nanometric-sized pores, so small that they physically trap the sulfur molecules and prevent them from dissolving during the operation of the battery. The result is a microporous carbon with oxygen and nitrogen functional groups integrated into its surface, which not only retains sulfur mechanically but also interacts with it chemically, reinforcing the stability of the cathode for more than 1,000 cycles. The research team highlights that the synthesis is simple and scalable, which opens the door to its industrial manufacturing without the need for specialized equipment or difficult-to-access materials. Yes, but. The electrochemical results are tremendously promising, but on a laboratory scale. Sodium-sulfur batteries face to other challenges that this work does not resolve, such as the insulating nature of sulfur and sodium sulfide, the expansion of the volume of the cathode or the formation of metallic sodium dendrites in the anode and that would have to be solved for future commercialization. The practical application of these batteries remains limited by the rapid degradation of capacity and the low conductivity of sulfur and its reduced products. In short: the invention takes an important step, but there is work to be done on the anode and electrolyte before this technology can leave the laboratory. In Xataka | The pistachio has worked an unexpected wonder: generating thousands of jobs in the fields of Castilla-La Mancha In Xataka | The war in Iran is skyrocketing the price of pistachios. And that threatens to take down Dubai chocolate Cover | Theo Crazzolara and Newpowa

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