will not work miracles

Just do scroll a few minutes on TikTok or Instagram to come across a video teaching the great benefits of taking magnesium supplementationpromising to sleep better or make your muscles perform better than ever. This has caused magnesium to become almost something essentialbut the reality is that it does not work miracles. Like other supplements that had their great heyday in the past. Specific cases. The current scientific evidence is clear and fits perfectly with what nutrition experts warn: in the healthy population, the absolute priority is diet. Magnesium supplements are not a miracle pill and only make true sense when there are deficiencies or very specific clinical situations. The problem is that the general population falls into wanting quick benefits with a simple pill. This is something that can be seen in a medical consultation, where leaving without a prescription for a new medication seems crazy, since we do not welcome being prescribed a diet or a series of exercises. In the end we want a pill that cures absolutely everything and gives us the greatest fulfillment in terms of health. The effect of magnesium. This is what happens with magnesium, and it is normal when it is sold to us as something so good. But the question we must ask ourselves here is: do we really lack that much magnesium? The answer is varied, because intake data in Europe reveal that between 25 and 40% of adults are below the average requirement, being a relevant problem in women. However, going “just right” in magnesium does not mean that you have clinical hypomagnesemia (a drop in magnesium), nor does it mean that you need to buy the best supplement. The vast majority of these people could solve their problem by making small adjustments at the supermarket: eating more legumes, nuts, seeds, green leafy vegetables and whole grains. Which is supported. The European Food Safety Authority (EFSA) endorses that magnesium reduces fatigue and supports muscle and nerve function. But if we look at recent clinical trials, its miraculous effect is nuanced. For example, it has been seen that magnesium oxide used as an osmotic laxative for decades, and it is something that has been confirmed in the laboratory. Another effect with strong evidence behind it comes from a meta-analysis published in 2025 that shows that prolonged supplementation for between 12 and 16 weeks with doses of 250-450 mg per day improves blood pressure, lipid profile and reduces inflammatory markers. What is less clear. On the other side of the scale, there are some effects that do not have such strong evidence. For example, a mantra that has been heard is that supplemented magnesium is ideal for migraines. Something that has been demonstrated, but without very conclusive data. As an extra, magnesium is also sold as the ultimate and most natural sedative, but here is the data They are less spectacular than they seem. The reality is that it helps a little with insomnia and mild anxiety, but the quality of the evidence is limited, and the effect, according to trials, is not uniform. Where to click. If they have sold magnesium to avoid cramps while running or perform better in the gym, the truth is that it is smoke. An in-depth 2024 scientific review on magnesium and exercise concluded that the evidence for performance, recovery and cramps is minimal and, thus, its widespread use in athletes is not solidly supported. It is not the solution either for the famous hot flashes that exists when you reach menopause, since the trials here show that magnesium does not reduce the frequency or intensity of these. Yes, it is true that right now there are some studies underway with specific formulations to see if they act on other symptoms. They are not all the same. The most important thing here is to always consult your doctor so that he or she can determine if there really is a deficiency of this mineral (or others) through a simple blood test. If confirmed, you have to know how to choose well, with magnesium citrate being one of the favorites as it is the one that is best absorbed in the intestine. Be careful not to go overboard. Different institutions mark a very clear red line: they cannot be consumed more than 350 mg of magnesium in the form of a daily supplement. Overcoming this barrier, especially if more than 400 mg are taken daily, opens the door to the most common adverse effects such as diarrhea, nausea and abdominal cramps. Additionally, magnesium supplements are contraindicated in people with severe kidney failure, as their kidneys cannot filter the excess, which can cause severe muscle weakness and neuromuscular blockages. In Xataka | There are people obsessed with consuming magnesium as a supplement when the best way is to put it in your diet

Nvidia has become hostage of her own success. His record numbers know little when the world expects miracles

Nvidia has presented her Results of the second fiscal quarter. Technically beat all forecasts: Adjusted benefits of $ 1.05 per share compared to the 1.01 expected. Revenues of 46,740 million dollars against the projected 46,230 million. The company has also projected income of 54,000 million for the current quarter, slightly above the consensus of 53.4 billion. Why is it important. These seemingly solid numbers have not been enough for a market that has turned Nvidia into the fire test definitive of boom of the AI. The action has fallen 3% in the operations after closing, a reaction that reveals to what extent the expectations about the most valuable company in the world – with 4.4 billion capitalization – have reached almost impossible levels of satisfying. China’s problem. The great shadow on the results has been the total absence of sales of the H20 chip To China during the quarter. Nvidia has not included any sales forecast to China in its guide for the third quarter, despite the fact that the financial director, Colette Kress, has mentioned that they have between 2,000 and 5,000 million dollars in ready -to -send orders to send if geopolitical issues are resolved. The company is waiting for the Trump administration to clarify the regulations on the 15% cut they want to impose to Chips sales to China. Jensen Huang has been unusually direct during the Call with analysts: “The Chinese market estimates that represents about 50,000 million dollars of opportunity for us this year.” He added that half of the world’s researchers are in China … And that it is “quite important” that American technology companies can access that market. Between the lines. Huang’s frustration with the geopolitical situation is palpable. His comment that “we just have to continue advocating” before the Trump administration makes us glimpse a more tense negotiation than the official statements say. The CEO has suggested that they are working in a modified version of their Blackwell chips for China, with reduced performance, indicating that Nvidia is willing to make weight concessions so as not to lose that market. Striking in a company Today as powerful as Nvidia. Data centers disappoint. The data centers segment, which represents 88% of total income, has generated 41,1 billion dollars, slightly below the expected 41,290 million. It is the second consecutive trimester that this important segment does not reach expectations, a worrying signal when large technological ones such as goal, Google and Microsoft are investing tens of billions each quarter in AI infrastructure. “Everything is sold”. Huang has said during the call that “everything is sold”, referring so much to the Hopper chips current as the new Blackwell. Has added that the production of Blackwell Ultra It is “progressing at full speed” and that demand is “extraordinary.” However, these statements contrast with the fact that the income growth of 56% year -on -year is the slowest in nine consecutive quarters of growth greater than 50%. Growing pressure. The market reaction tells an uncomfortable truth: Nvidia has become hostage of its own success. With a weight of 7.5% in the S&P 500 – 3% in December -, Any stumbling block has the potential to drag the entire market. An important Nvidia failure would be a detonation for half -world bags. The contrast. Huang has promised that AI infrastructure spending will reach between 3 and 4 billion dollars for the end of the decade, but the immediate reality is that NVIDIA cannot freely access the second largest computer market in the world. The repurchase of 60,000 million dollars in shares approved by the Council – one of the largest in American business history – seems more an attempt to sustain the price of the action than a real confidence signal in the future without regulatory mosquadillas. In Xataka | Deepseek has suggested that Nvidia chips no longer needs. We believe to know who is buying them Outstanding image | Nvidia

The history of the iPod that saved it is a story of secrets and technical miracles

“Today it is almost impossible to imagine it, but there was a time when Apple was about to disappear”Thus, our new episode of ‘Xataka presents’ starts, with a direct squeak to the history of one of the most admired companies on the planet. And it is not just a good beginning: it is a reality that many people have forgotten. In this series we have already explored other curious stories of technology, Like Bonzi Buddythat purple virtual assistant who promised to help and ended up becoming a digital nightmare. When we think today in Apple, we think of leadership, in innovation, an ecosystem that many try to imitate. But there was a time when all that seemed a mirage. Apple was against the strings. And if he managed to survive, it was thanks to a series of decisions that, seen in retrospect, seem almost miraculous. What decisions were those? What product was so important that the company’s trajectory changed completely? And above all, how was it possible that A seemingly simple device (A music player) will end up being the turning point of an entire era? If you are passionate about technology as well as us, this video is a mandatory trip. Because we don’t talk only about iPod. We talked about vision, of risk, of moments when everything could go wrong. How a company without experience in pocket products, without know-how In lithium batteries or portable software, he threw himself to the unknown … and won. “The iPod was that product and it was a success,” says our partner Jota García in the video. But getting there was anything but easy. After the purchase of NextSteve Jobs had returned to Apple with a clear mission. The IMAC had already been a first blow on the table, but it was not enough. Napster stirred the foundations of the music industry. The CDs began to lose ground. The world asked for another way of consuming music. Jobs, as always, didn’t want to settle. “He didn’t want to make another partner of the pile. He wanted to do the best. The most elegant, the fastest, the simplest.” Hence an unusual piece: “A 1.8 -inch Toshiba hard drive, compact, light and with 5 GB of capacity.” And from there a phrase was born that would end up defining a whole generation: a thousand songs in your pocket. And did you know that the name “iPod” was not even Apple’s idea? Or that the project was almost secret and was about to be canceled more than once? In the video we break up step by step how Apple went from the “P-68” to the device that would change everything. “They had no experience by manufacturing pocket products. They did not handle lithium batteries, they did not have software for portable devices … ”. The Apple at that time was not the Apple now. It was a vulnerable company. And yet it was launched with everything. The rest is history … but a story with many nuances. Because when Jobs presented the iPod, not everything was ovation. “The day Apple presented the iPod … almost nobody cared.” It cost $ 399, it worked only with Mac, and many media criticized him openly. And yet, there was the magic: Apple’s story was beginning to rewrite, although few knew it yet. In the video we relive that moment, and also how, step by step, Apple broke his own rules to change his destiny. In addition, we navigate the history of the iPod until its disappearance and his legacy on the iPhone. But that story not only serves to understand the past, it also helps us to contrast two very different times. That Apple that improvised to survive Today is one of the most valuable companies in the worldbut still making strategic decisions not to be left behind. In full career for artificial intelligence, he has presented Apple Intelligence and has announced the integration of Chatgpt In their operating systems. All that, as then, with one goal: to continue in the race when the direction of technology changes again. Did you have an iPod? Do you remember the song you listened to most? Leave it in the comments. And give the play. Because if you ever thought that everything had already been told about Apple … You haven’t seen this video yet. Images | Xataka In Xataka | If Apple does not want to be left behind in the AI ​​race, you have a very obvious option at your fingertips: Buy Anthropic

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