We know more than Mars than the seabed. An expert helps us to understand why it is still an enigma and what mysteries keep

What if we told you that there is such a tiny creature that it can hunt generating a bubble at more than 100 km/h, with a temperature similar to the sun? What if the orcs were smarter than we believe, even capable of having bait traps or hunting the very blue whale? The bottom of the sea It is still a place full of mysteries. We think we know him because we have seen documentaries or movies, but we have barely scratched his surface. Science and separate With a new episode On our YouTube channelalso available as Podcast on Spotify and Ivoox. A space in which we address scientific issues from a close and informative approach. In this second installment, our partner Ángela Blanco talks with Álex Avelloethologist and disseminator, to explore the amazing behavior of marine animals and everything we still do not know about the ocean. The pistolera gamba is one of those animals that costs to believe that they really exist. It is tiny, but its way of hunting has nothing subtle: it closes one of its tweezers to more than 100 km/Hy generates a bubble whose temperature, according to some studies, could approach the surface of the sun. “This always caught with tweezers too, a little above, a little below,” says Alex. The click is so brutal that it can be detected by the sound of a submarine. If the puppets can submerge up to 3,000 meters is not only because of their size or strength, but by a fascinating biological mechanism. “It has an organ that is called sperm … I always say it is like a bag full of wax, a wax -full supermarket,” explains Álex. When they prepare to descend, they let cold water into that organ, which solidifies the wax and turns their heads into a natural ballast. “In this way they go down to every tablet,” he adds. While they descend, they emit clicks that bounce with everything they find, as a kind of sound. There is an idea that is repeated throughout the episode: we barely know what is in the depths. “We know 4% of all oceans,” says Alex. And that leaves a lot of room for imagination. “Today, to me someone comes to make sure Megalodon is impossible for it to exist …”Every time he gives a talk in schools, children ask him about mythical sea creatures. And his answer is not a resounding. Because the truth is that we have not yet reached there. Are dolphins smarter marine animals? Álex clarifies: “Orca is within the family of dolphins … but the orca is superior to the dolphin. In fact, the orcs hunt dolphins, the dolphins do not hunt orcas.” What comes later in the conversation ends up clarifying why. And it is worth listening. Not all animals eat what they are in front of them. Some know how to wait. “Have that ability to say: ‘Ok, I have this that I can eat it right now, But I can use it as a tool… ”, Recalls Álex when talking about an orca who saw in a video as a child. What he did with that fish is difficult to forget. He tells him in detail in the episode. This is not all. In the second episode of science and apart there are more stories that surprise, that make them think and that remind us of everything we do not know yet. You can see or listen to it. Where do you prefer. Images | Xataka In Xataka | There are thousands of people hooked to streaming. One to 3,900 meters deep full of marine curiosities (and memes)

In 2021 a volcano spent three days in eruption without anyone finding out. Now it helps us ahead of the silent volcanoes

Knowing how to read the signals that a volcano gives before erupting can make a difference between a scare and a tragedy. Some volcanoes make it easy for experts who know how to read these clues but others erupt without prior notice. Or maybe just we couldn’t decipher your signs. At least until now. A new tool. A team of researchers He has devised A new mechanism to model the behavior of some volcanoes. This tool, its creators stand out, will serve to more effectively monitor the eruptions of some volcanoes reducing the risk associated with these natural phenomena often so violent. Some special usefulness in the case of “silent” volcanoes. “Despite great advances in monitoring, some volcanoes erupt with minimally detectable or even without them precursors, significantly increasing the risk of nearby populations,” pointed in a press release Yuyu Li, co -author of the study. As explained by LI herself, some of these volcanoes are located not only near communities, also near important air traffic routes. Silent volcanoes. For the development of its tool, the team resorted to the Veniaminaf volcano, located in the North American state of Alaska. This is one of the so -called “silent” volcanoes, volcanoes whose eruption is not preceded by the signals that are generally associated with an imminent or close eruption, such as earthquakes or the deformation of the soil in the surroundings of the Magma Chamber. Veniaminof’s is just an example that We can find In this family of silent volcanoes that also includes some closer such as Stromboli in Italy or Popocatepetl in Mexico. Looking inside the volcano. But among all of them, the Veniaminof volcano is perhaps the most paradigmatic. Not because only two of the 13 rashes that have leaded since 1993 have been planned, but because in 2021 he achieved the milestone of erupting without anyone noticing Until three days later. The team responsible for the study analyzed the internal conditions that make it a silent volcano. Factors such as a slow supply of magma and a warm host rock are key in this regard. The monitoring of the volcano was carried out for three summers prior to one of the silent eruptions of the volcano, that of 2018. A model to get ahead of the eruption. The result, a model that conforms to the state of different variables that can condition the probability of the burst of the magma, such as the volume of the reserve, flow conditions of the magna, depth of the reserve or the form that it acquires is. Thus they could estimate what kind of conditions could be linked to a silent eruption and which ones were not. The team found that soil deformation could help prevent some eruptions of the volcano but that the relationship between underground magma and rashes were somewhat more complex than it might seem. The details of the study have been published In an article In the magazine Frontiers in Earth Science. The following steps. Monitoring the numerous silent volcanoes distributed throughout the world will not be an easy task. For now, the resolution gives a clue to what are the volcanoes to monitor more closely: volcanoes with small and warm reserves and slow magma flows, explains the team. In Xataka | In 2021 a volcano spent three days in eruption without anyone finding out. Now it helps us to unmask the silent volcanoes Image | Alaska Volcano Observatory Photo Gallery

Something is stealing our dream and they are not just the screens. A neurologist helps us understand what is really happening

We sleep, we dream, we forget. But do we really know what happens while we sleep? Sleep paralysis, déjà vusawakening in the early morning or that exhaustion that appears even after Sleep eight hours. In this new section of Xataka we enter all those questions that we have ever asked ourselves and that until now were still without clear response. Or worse: full of myths. We release ‘Science and Apart’, a new section in Our YouTube channelalso Available as Podcast on Spotify and Ivoox. A space where we propose to talk about science with experts in the field. In this first episode, our partner Ángela Blanco talks with the doctor Daniel Blanes Jacquartspecialist in neurology and member of the Spanish Sleep Society. “Dream is a vital function,” explains Blanes. “It helps us to prepare our internal environment and respond to demands From the external environment. ”Sleeping is not simply to rest: it is a biological need that occupies much of our life. Although we perceive it as a kind of blackout, during the dream there are fundamental processes for our body, such as internal reparation. And it is not necessary to be a scientist to intuit it. Just look at the data of a smart watch like the Apple Watch Series 10 or the Huawei Watch 5. Those graphs that divide the night into phases such as REM, deep, essential or vigil are not only decorative: they respond to real processes that fulfill very different functions with each other. In our dialogue with Blanes, concepts such as declarative memory, emotional memory appear, what they are and in which part of the dream are fixed. The talk also addresses ideas such as the relationship between what we remember and the quality of rest. “We all dream a lot, but most dreams are not fixed in memory.” Our guest explains why this happens and what does it mean if We dream very often And we can tell what we have experienced (or we think we have experienced). Angela asks how it is possible to wake up paralyzed, unable to move. “Sleep paralysis is an incomplete awakening,” says Blanes, and adds: “I am awake, I wake up, but I continue with the activation of the visual, auditory cortex, that is, you can see things or you can hear things that are not because in the background is still that part of the REM active and, in addition, the paralysis is complete.” Issues that are very present in everyday life are also addressed. Do we sleep worse than before? Are the guilty screens? Does blue light affect us more than we believe? Throughout the episode we talk about the impact of sleep hormones, why we hate Mondays, narcolepsia and even the collagen we produce at night. “We have a tool to make collagen that is the dream.” We invite you to discover all this and much more in ‘Science and apart’, which starts with a very interesting episode and that makes some key concepts about sleep clear. It will help us better understand this fundamental part of our life. Now we just have to choose the platform you prefer to enjoy this first episode. Images | Xataka In Xataka | The close (and far) that we are not sleeping at all: for the first time in history, we have a small way to try In Xataka | More and more people are going on vacation simply to sleep

We have been detecting a relationship between Herpes and Alzheimer’s years. Now we are discovering that treating one helps with the other

A few years ago the scientists detected A strange coincidencea relationship between herpes virus and a neurodegenerative and noncommissible disease: Alzheimer’s. What at the time seemed a spurious and casual relationship, it seems more and more proven and proven. Adding tests. Now a new study He has obtained evidence of this relationship. However, perhaps the most important fact that we can extract from the new analysis has to do with vaccines against infection. According to the study, antiviral treatments against herpes are related to a 17% lower risk of suffering from Alzheimer’s, suggesting that treatment against this virus can protect us against the appearance of this form of dementia. HSV-1. In study he linked again the infection by the Herpes simplex virus Type 1 (HSV-1) with the appearance of Alzheimer’s disease, a form of dementia that is characterized by accumulation in the brain of beta-amyloid plates. Today we do not have a clear idea of ​​how this relationship occurs “(Some) studies have indicated that inflammatory alterations in the brain caused by HSV infection are central to the development of (the disease),” Explain the team Resposable study. “It is pointed out that peptides (beta-amyloids (Aβ)) are deposited in response to HSV infection and protect host cells (…). Consistently, they threw antimicrobial properties against several pathogens, including HSV-1,” they detail. 344,628 matches. In his study, the team He turned to 344,628 participants with Alzheimer who were paired with two participants without diagnosis but with similar characteristics. They observed that among people with Alzheimer’s 0.44% had been previously diagnosed with HSV-1, while only 0.25% of the control group had the same previous diagnosis. The analysis indicates that, taking into account other relevant factors, the probability of finding a previous HSV-1 diagnosis was 80% higher among people with Alzheimer’s than in people without the disease. The details of the study were published In an article In the magazine BMJ Open. Not only HSV-1. The study focused on a variant of the herpes virus but also paid attention to other pathogens of the “family”, such as the HSV-2, Varicela Zoster, or Citomegalovirus. They found a relationship between two of them (HSV-2 and Vicela Zoster) and a greater risk of Alzheimer’s. Understanding the causes. New studies will still be necessary that Explain biochemical mechanisms that explain this type of relationship between infectious processes and noncommunicable diseases. Only in this way can we establish the underlying causal relationships and, hopefully, to find more effective treatments in the fight against disorders as serious as cancer and Alzheimer’s. “Although there is a lot of research ahead to find out the reasons and mechanisms that lead from infection to a process of dementia that manifests many years later, the accumulation of the evidence suggests that the management of these infections, with treatments that are effective for all herpes, or with vaccines such as herpes zoster, is an interesting tool to reduce the risk or delay dementia” explained to SMC María Jesús Bullido Gómez-Heres, head of the Research Group Pathogenic mechanisms of Alzheimer’s disease, who was not involved in the study. Not so non -transmissible diseases. This is not the only example of a noncommissible disease to which we have found a surprising relationship with past infections. A recent example We find it in colorectal cancer and its possible link with infections caused by bacteria Escherichia coli. In Xataka | We are getting closer to ahead of the arrival of Alzheimer’s. Knowing it can reassure us, but maybe too much Image | Matteo Vistocco / CDC/DR. Erskine Palmer

Exotic fruit that helps reduce blood cholesterol levels

Unknown by the vast majority, the Black Aroniaalso called Chokeberryit is today one of the fruits with the greatest amount of benefits on the human body. According to a study conducted by the researcher Yulin Renof the Ohio State Universitytogether with the National Library of Medicine from the United Statesthis small fruit of appearance is capable of achieving a direct impact on the decrease in the level of Blood cholesterol and level sugar in it. But how can a tiny size berry achieve this series of important results only with its consumption? The benefits of Black Aronia in health As revealed in the investigation, this food, from the region of North Americahas a series of important nutrients and benefits as: Low calories Fiber Vitamin c Vitamin K Manganese Iron Vitamin a Vitamin e To measure the impact of this fruit In the health of a person, the team of researchers had a group of people who took the Black Aronia For 6 weeks in a row. After the completion of the clinical trial, the scientists noticed that the pressure systolic bloodas well as the Blood cholesterol levels The participants were significantly reduced. Similarly, and in addition to its benefits to counteract this type of heart diseaseit was also discovered that the consumption of the Black Aronia helped Reduce the glycemia level In the blood. In addition to all of the above, and thanks to the series of studies carried out, it was also discovered that the Black Aronia Provides important amounts of folic acidin addition to being extremely useful when Improve the digestive process Due to his power anti -inflammatory. Niacin has been shown to reduce LDL cholesterol, its impact on the reduction of cardiovascular risk has been lower than expected.Credit: Redpixel.Pl | Shuttersock In the same way, it is able to nurture the muscles and support the arthritis prevention. The Black Aronia It also has other benefits such as: Antiproliferative: It has properties that help reduce the growth of cancer cells. ANTIMUTAGENICA: It houses various nutrients that can contribute to the care of the immune system. Regarding the form of consumption, it is recommended to eat the fruit in its natural form. Similarly, it can be enjoyed by freshly made milkshakes or juices. However, and like every new food, it is important to consult an expert in nutrition to make the best decision regarding its inclusion in a diet. Continue reading: The key fruit that can improve digestion, according to Harvard experts Saúco’s juice could be a “powerful tool” to control weight What fruits can you eat if you are diabetic and which is the best, according to experts (tagstotranslate) High cholesterol

The medicinal plant that helps protect the liver naturally

Among the variety of recommended products or foods to protect the livernaturally, the licorice It is perhaps one of the least mentioned. And for the vast majority, this element, member of the family of the Fabáceas cultivated in the north of Africa, Eastern Europe and southern as well as Tropical Asia And temperate, it is related to the candy industry. However, and according to various investigations, the licorice has a series of properties anti -inflammatory, Antioxidants and expectorantswhich makes it a beneficial food to relieve the Immune system, digestive And, in large part, the liver. Muelize has benefits on the digestive and immune system. Credit: Gate74 | Pixabay What benefits does the licorice have in the liver? He licoriceaccording to studies, has the ability to help in the function hepatic because it is able to eliminate, in a simple way, the accumulated toxic substances within the liver. Similarly, the sweet juices of the licorice They have a balancing, attenuator effect that provides a sedative action on the liverprotecting it from other discomforts and damage caused by poor diet or other factors. In addition to all of the above, the licorice It also has a series of properties that help reduce Body temperature since it fights dehydration and heat blows. It also grants a great barrier to avoid the entry of various microorganisms, so it is extremely recommended to strengthen the Immune system. He licorice It also has important benefits on the digestive system, since it is an anti -inflammatory, anti -anti -stomach and antispasmodic herb, it can prevent the stomach heaviness, Avoid indigestion and reduce flatulence. According to other studies, the consumption of licorice It also has direct benefits on other diseases such as depressionsince it provides a large amount of nutrients that act efficiently in the nervous system. The licorice helps reduce the inflammation of the oral, stomach and intestinal mucosa. Credit: Gokalp Iscan | Pixabay Even, and as revealed by smokerschew root of licorice It can be a good way to leave the cigar in the short term. He licorice can also help: Reduce inflammation of the oral, stomach and intestinal mucosa Reduce nausea and vomiting Calm conjunctivitis and eye discomfort Help regulate blood glucose levels Continue reading: Best home remedies for throat pain, according to experts The benefits of tea What to eat according to the blood type diet (tagstotranslate) liver

Hiba Abouk practices the training that tones the most and helps us age better

Along with Vanesa Lorenzo or Ariadne Artiles, Hiba Abouk is another of our celebrities athletes who also inspire their followers to overcome laziness and perform in the gym. Exercise is part of her life and we have seen her for years leading by example through ideal boxing sessions to reduce stress and increase self-esteem or ‘full body’ routines that work the entire body at the same time. The actress is also a great fan of strength training, highly recommended by experts because not only is it one of those that tones the fastest, it also optimizes our endocrine system, helps us age better and even prevents us from feeling hungrier after eating. © hiba_abouk_ Hiba Abouk’s strength training Dumbbells, weights, resistance bands, kettlebellskettlebells… There are many different accessories to work on strength and, under proper supervision (Hiba relies on the one known in networks such as 23toptraining), all of them help strengthen muscles and general health. To begin with, the technical director of JG fitness, Fran del Águila, highlights his ability when it comes to increase leptin sensitivity: “It is a hormone produced by fat cells that sends signals to the brain to indicate that we are full. When leptin levels are adequate, we feel less hungry and have more energy.” The opposite also happens, “Factors such as obesity, genetics and a sedentary lifestyle can alter the body’s sensitivity to leptinmaking it difficult to lose weight and maintain a healthy weight. The reason why weight work plays a fundamental role in the performance of this hormone is that “By burning calories and building muscle, it helps reduce fat percentage body, which in turn improves leptin sensitivity. © hiba_abouk_ An ally at all ages Although this type of weight training is associated with young people with a well-developed physical background, Technogym, a leading brand in fitnesswell-being, sports and health, they consider it critical for the elderly demographic“since it is the most effective way to combat the natural and age-specific tendency to body weakness, linked to the loss of muscle mass.” Its experts assure that “adding moderate/mild strength training sessions prescribed by a doctor and guided by a trainer to the routines of older people essentially decreases the likelihood of injury and allows them to lead an active life for longer. © Silou London As for those worried about gaining too much volume with this type of routine, Sara Álvarez, co-founder and creator of the RETO48 method, denies it: “The most widespread myth is that if you lift weights you will have a bulky bodyand women tend to avoid the weight room because they believe that cardio is the only way to lose weight and tone up.” The expert assures that “this idea is a product of ignorance of the benefits of strength training, especially its ability to build a healthy and fit physique. Finally, Álvarez recommends it as an ally to lose weight: “Do strength training guarantees muscle development, weight loss and greater flexibility. The best option? Incorporate both options into your exercise routines to have a slim, toned and healthy body.”

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