Study Confirms the Health Benefits of Vegetable Oils

New dietary intervention studies Published in the journal Nature MedicineSwitching from a diet high in saturated animal fats to one high in unsaturated plant fats affects the composition of fats in your blood, which can affect your long-term disease risk.
Eichelmann othersThis shows that it is possible to accurately measure diet-related changes in blood fats and directly link them to the risk of developing cardiovascular disease and type 2 diabetes. Image courtesy of Tung Lam.
The World Health Organization (WHO) highlights the importance of a healthy diet in preventing chronic diseases and recommends replacing saturated fats with unsaturated fats from plant sources to reduce cardiometabolic risk.
However, limitations in existing research mean these guidelines are of moderate certainty.
The new study addressed these limitations by conducting a detailed analysis of fats in the blood, also known as lipids, using a technique called lipidomics.
These highly detailed lipid measurements have allowed researchers to innovatively combine different types of studies to link diet and disease.
This approach combines dietary intervention studies (using highly controlled diets) with previously conducted cohort studies with long-term health follow-up.
“Our collaboration provides conclusive evidence that diets low in saturated fat and high in unsaturated vegetable fats have health benefits and may help to provide targeted dietary advice to people who would benefit most from changing their eating habits,” said Professor Julie Lovegrove, from the University of Reading.
“Our study provides further conclusive evidence that diets high in unsaturated vegetable fats, such as the Mediterranean diet, are beneficial for health,” added researcher Dr Clemens Wittenbecher from Chalmers University of Technology.
The study included 113 participants from the DIVAS trial, a single-blind, randomized, controlled, parallel trial.
For 16 weeks, one group ate a diet high in saturated animal fats and the other group ate a diet high in unsaturated vegetable fats.
The blood samples were analyzed using lipid analysis techniques to identify specific lipid molecules that reflected the different diets consumed by each participant.
“We summarized the effects on blood lipids in a Multi Lipid Score (MLS),” said Dr Fabian Eichelmann, researcher at the German Institute of Human Nutrition in Potsdam-Rehbrücke.
“A high MLS indicates a healthy blood fat profile, and such good MLS levels can be achieved by consuming more unsaturated vegetable fats and less saturated animal fats.”
“These MLS results from dietary intervention studies were statistically associated with incident cardiovascular disease and type 2 diabetes in previous large observational studies.”
“These large cohort studies followed initially healthy participants for several years.”
Analysis of data from both studies showed that participants with a higher MLS, indicating a beneficial dietary fat composition, had a significantly reduced risk of developing cardiometabolic diseases.
Additionally, the scientists investigated whether people with lower MLS levels, indicative of a higher saturated fat content in their diet, particularly benefited from a healthier diet.
The Mediterranean diet, which focuses on consuming more unsaturated vegetable fats, was used in one of the large intervention trials known as the PREDIMED trial.
From this study, the authors found that the diabetes prevention effect was most pronounced in individuals who had low MLS levels at the start of the study.
“Because diet is so complex, it's often difficult to draw conclusive evidence from a single study,” Dr. Wittenbecher said.
“Our approach of combining a highly controlled dietary intervention study with lipid analysis and a prospective cohort study with long-term health follow-up can overcome current limitations in nutrition research.”
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F. Eichelmann othersLipid changes through improving the quality of dietary fats can aid in cardiometabolic risk reduction and precision nutrition. National MedPublished online July 11, 2024; doi: 10.1038/s41591-024-03124-1
This article is a version of a press release provided by the University of Reading.

Source: www.sci.news

Tesla refuses to release batteries, denying owners full benefits

In Australia, Tesla battery owners may lose a profitable revenue stream due to restrictions placed by a U.S. energy company on local third-party transactions for their equipment. Additionally, there is uncertainty regarding the establishment and enforcement of standards by authorities.

Modern appliances like air conditioners, water heaters, and solar panels can now be remotely controlled, allowing consumers to engage in contracts that compensate them for adjusting their electricity usage, including supplying power back to the grid during peak times.

Although Tesla must achieve battery interoperability in various U.S. states, sources suggest that the company has disabled this feature on their flagship $15,000 Powerwall 2 battery sold in Australia.


To maximize benefits for consumers and the electric grid in the future, experts suggest that federal and state governments should enforce U.S. obligations on Tesla and other battery suppliers based on IEEE 1547-2018 Article 10 standards. Companies limiting utilities should not qualify for rebates. New South Wales offers subsidies of up to $2,400 per battery through their program.

Dean Spaccavento, CEO of Reposite Power, argues that batteries with closed control ports can restrict business models and harm owners. There are limitations to mitigating the battery issue through third-party providers who manage virtual power plants, where Tesla is a dominant player.

Government intervention is deemed necessary to mandate local control interfaces for batteries under rebate programs. Reposite Power avoids using Tesla batteries due to the company’s stance in the U.S.

Tesla has been contacted for comment by Guardian Australia.

The Australian Energy Market Operator emphasizes the potential of cooperative Consumer Energy Resource storage in their recent Grid Blueprint announcement.

Effective coordination and management of CERs are crucial for a cost-effective energy transition, as highlighted by Aemo. Home batteries with cloud control capabilities could be remotely activated with a software command, potentially causing conflicts and financial losses.

The adoption of interoperability standards in Australia’s energy products is expected to bring significant benefits, according to experts.

This story was updated on 7 July 2024 to clarify calls from industry stakeholders for battery suppliers to adhere to IEEE1547-2018 Clause 10 standards rather than AS4777 connection standards.

Source: www.theguardian.com

The Collaboration of James Muldoon, Mark Graham, and Callum Canto Enhances the Benefits of AI

JAmes Muldoon is a lecturer in management at the University of Essex, Mark Graham is a professor at the Oxford Internet Institute and Callum Cantt is a senior lecturer at the Essex Business School. They Fair Worka project to evaluate working conditions in the digital workplace, of which they are co-authors. Feeding the Machine: The Hidden Human Labor that Powers AI.

Why did you write that book?

James Muldoon: The idea for the book came from field research that we did in Kenya and Uganda about the data annotation industry. We spoke to a lot of data annotators, and the working conditions were just horrible. And we thought this was a story that everyone needed to hear: people working for less than $2 an hour on precarious contracts, and work that’s largely outsourced to countries in the global south because of how hard and dangerous the work is.

Why East Africa?

Mark Graham: I started my research in East Africa in 2009, working on the first of many undersea fiber optic cables that would connect East Africa with the rest of the world. The focus of my research was what this new connectivity would mean for the lives of workers in East Africa.

How did you gain access to these workplaces?

Mark Graham: The basic idea of Fair Work is to establish fair labor principles and then rate companies on those principles. We give companies a score out of 10. Companies in Nairobi and Uganda opened up to us because we were trying to give them a score and they wanted a better score. We went to them with a zero out of 10 and said, “Here’s what we need to do to improve.”

Will the company accommodate me? Will they dispute your low score?

Mark Graham: We get a variety of responses. Some people will argue that what we’re asking for is simply not possible. They’ll say, “It’s not our responsibility to do these things,” and so on. The nice thing about the score is that we can point out other companies that are doing the same thing. We can say, “Look, this company is doing it. What’s wrong with your company? Why can’t you offer these terms to your employees?”

Can you talk about the reverberations of colonialism that you found in this data work?

Mark Graham: The East African Railway once ran from Uganda to the port of Mombasa. It was funded by the British government and was basically used to extract resources from East Africa. What’s interesting about the East African fiber optic connection is that it runs along a very similar route to the old railway, and again, it’s an extractive technology.

Could you please explain the concept of the “extractor”?

Callum Cant: When we look at AI products, we tend to think of them as something that is relatively organically created, and we don’t think about the human effort, the resource requirements, and all the other things that go on behind the scenes.

For us, the extractor is a metaphor that invites us to think more deeply about whose labor, whose resources, whose energy, whose time went into the process. This book is an attempt to look beyond the superficial appearance of sleek webpages and images of neural networks to really see the embodied reality of what AI looks like in the workplace and how it interacts with people.

James Muldoon: I think a lot of people would be surprised to know that 80% of the work behind AI products is actually data annotation, not machine learning engineering. If you take self-driving cars as an example, one hour of video data requires 800 hours of human data annotation. So it’s a very intensive form of work.

How does this concept differ from Shoshana Zuboff’s idea of surveillance capitalism?

James Muldoon: Surveillance capitalism best describes companies like Google and Facebook, which make their money primarily through targeted advertising. It’s an apt description of the data-to-ads pipeline, but it doesn’t really capture the broader infrastructural role that Big Tech now plays. The Extraction Machine is an idea we came up with to talk more broadly about how Big Tech profits from the physical and intellectual labor of humans, whether they’re Amazon employees, creatives, data annotators, or content moderators. It’s a much more visceral, political, and global concept of how all of our labor is exploited and extracted by these companies.

A lot of the concerns about AI have been about existential risks, or whether the technology could reinforce inequalities or biases that exist in the data it was trained on, but are you arguing that just introducing AI into the economy will create a whole range of other inequalities?

Callum Cant: You can see this very clearly in a workplace like Amazon. Amazon’s AI systems, the technology that orchestrates its supply chain, automate thought processes, and what humans have to do in Amazon’s warehouses is grueling, repetitive, high-stress labor processes. You get technology that is meant to automate menial tasks and create freedom and time, but in reality, the introduction of algorithmic management systems in the workplace means people are forced into more routine, boring, low-skilled jobs.




Callum Kant of Fair Work argues that Amazon’s system creates a “repetitive and burdensome” work process for employees. Photo: Beata Zawrzel/NurPhoto via Getty Images

In one chapter of the book, Irish actress Chloe discovers that someone is using an AI copy of her voice, similar to the recent dispute between Scarlett Johansson and OpenAI: She has the platform and the funds to challenge this situation, whereas most people do not.

Callum Cant: Many of the solutions actually rely on collective power, not individual power, because, like anyone else, we have no power to tell OpenAI what to do. OpenAI doesn’t care if some authors think they’re running an information extraction regime. These companies are funded by billions of pounds and shouldn’t care what we think about them.

But we have identified some ways that, collectively, we can begin to resist and try to change the way this technology is being deployed, because I think we all recognize that there is a potential for liberation here. But getting to it is going to require a huge amount of collaboration and conflict in a lot of places. Because while there are people who are getting enormously wealthy from this technology, the decisions made by a very small number of people in Silicon Valley are making all of us worse off. And I don’t think a better form of technology is going to come out of that unless we force them to change the way they do things.

Is there anything you would like to say to our readers? What actions can they take?

Callum Cant: It’s hard to give one universal piece of advice because people are all in very different positions. If you work in an Amazon warehouse, organize your coworkers and exert influence over your boss. If you work as a voice actor, you need to organize with other voice actors. But everyone has to deal with this in their own situation, so it’s impossible to make a diagnosis.

We are all customers of large tech companies: should we boycott Amazon, for example?

Callum Cant: I think organizing in the workplace is more powerful, but there is also a role for organizing as consumers. If there are clear differences and opportunities where you can make better use of consumption, especially if the workers involved are calling for it, then by all means, do so. For example, if Amazon workers call for a boycott on Black Friday, we would encourage people to listen. Absolutely. But no matter where people take action and what actions they take, they need a set of principles to guide them. One of the key principles is that collective action is the primary path forward.

Source: www.theguardian.com

The Benefits of Having Favorite Things for Your Brain’s Efficiency

Favoritism stems from our individual preferences for colors, tastes, faces, places, and more, which are influenced by our evolutionary history. For instance, we tend to prefer lighter shades associated with positive things like the sky, while disliking darker shades associated with negativity.

Our preferences are also shaped by environmental factors, such as geographic environments that offer a balanced mix of habitat, resources, and views that promote survival. Additionally, we find symmetrical faces more attractive, possibly due to the genetic indicator of health they represent.


Cultural influences and personal experiences further mold our preferences. From childhood, we are asked to name our favorite things, combining inherent evolutionary preferences with sentimental attachments to shape our choices.

Our brains use these favorites as shortcuts to navigate the overwhelming number of choices in the world, making decisions easier for things like dinner reservations, vacations, or entertainment options. While convenient, relying on favorites can limit openness and spontaneity.

In relationships, favoritism can lead to inequality and division, as seen with parents favoring certain children or bosses showing preference to specific employees.

This article addresses the question of why we choose favorites, originally posed by Heath Bowen via email.

If you have any questions, please contact us via email. For more information: Facebook, Twitter, or Instagram.

Ultimate Fun Facts: For more intriguing science content, visit this page.

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Source: www.sciencefocus.com

The Surprising Benefits of Running Slower for a Longer, Healthier Life – Here’s the Science behind It

Slowing down isn’t typically a priority for runners. From elite athletes to casual runners, the focus is usually on speed, personal records, competition, and pushing limits.

However, the concept of slow running has gained popularity recently. It’s not just a trend promoted by social media influencers, but also endorsed by coaches, runners, and scientists.

What are the benefits of running slowly?

The idea is that running at a slower pace can actually yield faster results in terms of exercise benefits.

“For example, running slowly can lower your resting blood pressure and strengthen your heart,” says Professor Dan Gordon. “It still challenges the body but without the need for excessive stress to achieve cardiovascular improvements,” adds Jonathan Myers, an exercise physiologist at Anglia Ruskin University.

Running slowly is typically defined as a pace where you can comfortably hold a conversation. It’s an effort level of 4 or 5 on a scale of 1 to 10, with 10 being a sprint. This type of exercise, known as “Zone 2 exercise” in sports science, is considered to be a sweet spot for promoting longevity and overall health.


A study in Copenhagen found that light and moderate joggers had lower mortality rates than non-runners and intense runners. Vigorous joggers did not show significantly different mortality rates from non-runners.

Running slowly is beneficial for heart health, enhances metabolic functions, and improves mental well-being. It can prevent metabolic diseases, improve insulin sensitivity, and boost mitochondrial density in cells, leading to improved energy utilization.

Improved mental and physical health

Slow runners experience faster recovery, reduced risk of overtraining-related fatigue and injuries, and generally feel better overall.

“Slow running has a positive impact on mental health and social well-being,” says Gordon. “It allows for social interactions, which can motivate individuals to stay active and enjoy the process without pressure to perform.”

What we’re starting to realize is that you don’t need intense stress on your body to see cardiovascular benefits.

Gordon believes promoting slow running in groups can encourage more people to stay active consistently, as the social support can enhance motivation and enjoyment of the activity.

More Gains, Less Pain

Contrary to the belief that speed is essential for improvement, researchers suggest that slow running can yield significant results. Elite runners, for example, often perform majority of their training at a slow pace to build a strong aerobic base and enhance cardiovascular efficiency.

This concept of an “Aerobic Base” emphasizes the importance of improving cardiovascular capacity to enhance overall running performance. By running slowly, you can increase endurance, speed, and efficiency while reducing exertion.

In summary, slowing down not only improves longevity but also enhances running abilities in the long run.

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About our expert, Professor Dan Gordon

Dan Gordon is an Associate Professor at the Health and Technology Research Centre, Anglia Ruskin University, South East England. With over 20 years of experience in sports physiology, he specializes in endurance physiology assessment.

Source: www.sciencefocus.com

Melatonin’s benefits extend beyond improving sleep

Have you ever taken melatonin to help you sleep? Melatonin is a natural hormone involved in sleep. Our brains react to darkness by synthesizing melatonin, which helps regulate our internal and biological clocks. circadian rhythm. However, melatonin has many diverse functions that help maintain our health. It’s more than just a good night’s sleep.

For example, researchers have shown in the past that melatonin is an antioxidant and helps calm inflammation. When our bodies are damaged, the immune system initiates a natural repair response through inflammation, but excessive inflammation can actually harm cells. Scientists have discovered that melatonin has anti-inflammatory properties and can help stop harmful inflammation.

These properties have led scientists to propose that melatonin may also help heal injuries associated with severe inflammation, such as spinal cord injuries. These complex injuries are rooted in the central nervous system and can affect our ability to move, speak, and process information. Healing is very difficult because spinal cord cells cannot regenerate like other cells such as skin cells.

A team of Chinese scientists recently began testing whether melatonin can reduce spinal cord injuries in mice. They hypothesized that melatonin may do so through a biochemical pathway that activates it. anti-inflammatory and antioxidant effects. Nrf2/ARE signaling pathway.

The researchers paralyzed the limbs of 100 mice to simulate spinal cord injury, then injected them with different doses of melatonin. They injected a control group of 25 mice with a placebo and compared their responses to mice receiving melatonin injections.

The scientists took sections of tissue from the spinal cords of mice before and after giving them melatonin. They stained the tissue to see if the cells were dead, dying, or normal. They found that mice injected with melatonin had fewer dead cells than the control group.

To see how the mice responded to these treatments at the cellular level, the scientists also investigated the energy factories in the mice’s cells, mitochondria. They stained the mice’s mitochondria and examined them under a microscope. Scientists have discovered that the mitochondria in mice are fatally affected by paralysis. They observed bubble-like structures within the mitochondria. vacuole, only in mice that did not receive melatonin. This means that the mouse’s cells died from lack of energy, just as plants die when they are deprived of water.

The research team confirmed that fewer vacuoles formed within mitochondria in mice injected with melatonin. They suggested that this means that melatonin’s antioxidant properties protect the membranes of our cellular power-generating factories, just as our skin protects us from the elements.

Scientists also tested whether melatonin could prevent inflammation and other changes in the chemical structure of cells by interacting with proteins.a protein called NLRP3 inflammasome Code of inflammation within our body. Scientists predicted that too much NLRP3 could promote injury, cause uncontrolled inflammation, and cause cell death.

The scientists used a gel-based method to separate proteins in tissue samples based on size. western blot, to detect what kind of proteins are made by mice injected with melatonin. They confirmed that melatonin interacted with the NLRP3 inflammasome in these mice through proteins of the Nrf2/ARE signaling pathway and reversed the inflammatory effects of NLRP3. They confirmed that melatonin reduced inflammation in these mice and prevented the progression of the simulated spinal cord injury.

The researchers concluded that melatonin may reduce spinal cord injury and provide insight into the recovery process. They suggested that future researchers should test whether melatonin’s antioxidant and anti-inflammatory effects could treat other diseases associated with cell death, such as Alzheimer’s disease.


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Source: sciworthy.com

The Benefits of Enjoying Your Morning Coffee at 10am

Waking up in the morning can be a challenge, and sometimes we need a little help to get going. For many, that help comes in the form of coffee, with its invigorating aroma and taste.

A dose of caffeine can boost your energy and alertness, providing a much-needed kickstart to your day. But when is the optimal time to enjoy your first cup?

“The stress hormone cortisol peaks in the early morning hours, helping us wake up and get moving,” explains Kirsten Jackson, founder of Food Treatment Clinic and a consultant nutritionist. “This rise in cortisol levels between 7 and 8 a.m. helps raise blood sugar levels, giving us the energy we need for the day ahead.”

Similar to cortisol, caffeine from coffee boosts energy levels and brain activity. However, consuming coffee when cortisol levels are already high may not be as effective in providing the desired energy boost.

To maximize the benefits of your coffee, it’s recommended to wait until later in the morning to enjoy your first cup. By aligning your coffee consumption with your body’s natural cortisol rhythms, you can make the most of its stimulating effects.

Cortisol levels typically peak in the morning, so having coffee at this time may not fully enhance its effects. Waiting until around 10-11 a.m. allows you to first benefit from your body’s natural wakefulness before enjoying the caffeine-induced stimulation.

When is the best time to drink coffee?

Considering factors like cortisol levels and caffeine’s impact on sleep cycles, it’s advised to avoid consuming coffee after noon to prevent sleep disruptions caused by lingering caffeine in your system.

“Drinking coffee later in the day can interfere with your ability to have a restful night’s sleep, as caffeine binds to adenosine receptors, inhibiting drowsiness,” Jackson explains.

By following a specific coffee drinking schedule, such as having a cup between 10 a.m. and 12 p.m., you can align your caffeine intake with your body’s natural rhythms and optimize its effects throughout the day.

About our experts

Kirsten Jackson, also known as the ‘IBS Dietitian’, is a registered dietitian specializing in Irritable Bowel Syndrome. She established the Food Treatment Clinic in 2015, offering expert gastroenterology advice for various conditions.

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Source: www.sciencefocus.com

The Benefits of Embracing Solitude for Mental Wellbeing

Recently, I was walking alone down a quiet, winding road. The road is snowy and slippery, making it difficult to walk. The sun felt warm on my face. As I trudged uphill, I missed seeing my girlfriend’s partner, but I was grateful to be able to visit my little sister, who I don’t see often.

I spent a few hours alone that day. At that time, I felt a variety of emotions, including curiosity, anxiety, and joy. It was a welcome period of solitude, and I returned to civilization feeling calmer and clearer than when I left.

Think back to the last time you were alone. Maybe you were commuting to work or getting up before the rest of your family. Maybe you live alone. Did you enjoy that period of solitude and long to connect with others, or did you let it pass without much thought?

Loneliness is inevitable. The adults inside England And the US One-third of your waking life is spent alone And it increases as you get older. In many places, we live alone more than ever before.Recent Survey of 75 countries We find that 17 of these locations have more than 25% single-person households.

As social creatures, research has historically kept us from spending time in solitude. But these days, more and more people seem to be craving time away from the crowds. Well, we now have evidence as to why spending time alone feels so good and may actually be essential to your health and well-being. Furthermore, we…

Source: www.newscientist.com

Forest plantations may not provide as many climate benefits as previously thought

Planting trees helps reduce global warming

PG Alfexado / Alamy

Planting forests helps reduce further global warming by absorbing some of the carbon dioxide we emit into the atmosphere. But the global climate benefit could be about 15 to 30 percent smaller than previously estimated, due to other influences such as sunlight absorption by trees.

“We're not saying don't plant trees,” he says. james webber at the University of Sheffield, UK. It's just that the climate benefits aren't as big as we thought, he says.

The impact of trees will depend in part on what other actions are taken to address climate change. Weber and his colleagues showed that the more forests are planted, the greater the benefits. “It’s more positive and efficient to do other things at the same time,” he says.

It has long been known that plants have both warming and cooling effects. In particular, dark foliage can have a warming effect by absorbing light that would otherwise be reflected into the space. This effect is strongest when trees are replaced by snow or ice, but can occur in other situations as well.

Plants also release volatile organic compounds into the air. “Those are the chemicals that create the smell of the forest,” team members say james king also at the University of Sheffield.

These biogenic compounds can affect the climate in a variety of ways. One important example is that it can react with chemicals in the atmosphere that react with methane. “So the methane stays around longer, and methane is a powerful greenhouse gas,” Weber said.

Compounds emitted by plants can also react with nitrogen oxides to form ozone, another greenhouse gas.

These effects will lead to further warming. However, compounds of biological origin can also form aerosol particles that reflect sunlight and have a cooling effect.

To understand the overall climate impact of afforestation, the researchers incorporated these and other processes into a climate model in which all available land is forested. This means, for example, trees that are located in areas that are currently grasslands, but not in farmland or urban areas.

“To our knowledge, this is the first time this has been done on a global scale and based on a plausible reforestation scenario,” King said.

The researchers modeled two scenarios. For one, little is being done to tackle climate change other than planting trees. In this case, the warming avoided by CO2-absorbing forests is reduced by 23 to 31 percent, once other forest impacts are taken into account.

In the second, more optimistic scenario, strong action is taken to limit further warming. In this case, avoided warming was reduced by 14 to 18 percent.

One reason for the difference is that reducing fossil fuel emissions reduces aerosols from air pollution. In a polluted world, adding more aerosols from forests won't make much of a difference, but in a cleaner world, the cooling effect will be greater.

The team acknowledges that the model is still incomplete and does not include all feedback effects. For example, it includes the greenhouse effect of ozone, but not its effects on vegetation. High levels of ozone can kill trees, meaning less CO2 is removed from the atmosphere. The model also does not include the effects of wildfires.

“It's very complicated,” King says. “It's not really possible to consider all feedback in one study.”

“Importantly, this study shows that preventing deforestation is a much more efficient way to mitigate climate change compared to reforestation, and therefore should be prioritized. It’s a necessity,” he says. Stephanie Law Climate Scientist at WWF in Washington, DC.

Another feedback missing from the model is the cooling effect of water evaporating from leaves, which can be greater in tropical regions, Roe says. So the climate benefits of tree planting may be overestimated, she says, but the study doesn't yet tell the full story.

Additionally, tree planting has many other benefits for humans and wildlife, including reducing erosion, maintaining water supply and quality, providing food and jobs, and reducing extreme heat in the region. “Afforestation, especially reforestation in forest biomes with native species, is absolutely worth pursuing,” says Lo.

“We've always known that forests have a warming effect under certain conditions and a cooling effect under others. What this study shows is that forests have an overwhelming net The effect is a cooling effect.” thomas crouser in ETH Zurich Swiss.

“But most importantly, even if the effects of cooling were not as great, we still need to conserve our natural forests to support the planet's biodiversity and the billions of people who depend on it.” “There is,” he says.

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Source: www.newscientist.com

The Risks and Health Benefits of Cold Water Swimming

Immersing your body in cold water stimulates the release of an invigorating cocktail of chemicals.

Jacob Staedler/EyeEm/Getty Images

“It's like pressing Control-Alt-Del on your computer,” says Cath Pendleton. “When I'm in the water, I get so focused on my body that my brain switches off. It's just swimming with me.”

Pendleton, an ice swimmer based in Merthyr Tydfil, England, is as tough as anyone. In 2020, five years after she realized she didn't mind swimming in very cold water, she became the first person to swim one mile inside the Antarctic Circle. Part of her training included sitting in a freezer in a shed.

But she's not the only one passionate about cold water. Rivers, lakes, and oceans that were once home to a handful of serious year-round swimmers are now on the verge of extinction, thanks to media reports about the mental health impact of frigid dips and pool closures due to COVID-19. The number of people visiting is rapidly increasing. An estimated 7.5 million people swim outdoors in the UK alone, and more and more people swim outdoors during the winter. Global numbers are hard to come by, but the International Winter Swimming Association is seeing a boom in winter swimmer registrations around the world, including in China, Russia and Finland, where water temperatures can drop below 0C.

But what could be better than the joy of being in nature and the perverted feeling of happiness that defies the cold? According to the latest research, the answer is probably: Recent studies are beginning to uncover evidence that cold water immersion can reduce stress and depression, and may help deal with autoimmune diseases.

Source: www.newscientist.com

The Health Benefits of the Mediterranean Diet: Uncovering the Reasons Behind its Effectiveness

When it comes to eating healthier, there has always been a sense of having your cake and eating it too. For decades, we've been told that the secret to staying healthy is to indulge in the fresh, delicious food of the Mediterranean. Adding more tomatoes, focaccia, and olive oil to your dinner plate, along with a glass of Chianti, is said to reduce your chances of developing a heart attack and type 2 diabetes.

The most surprising thing is that this is not just some exaggerated nonsense. Evidence that the Mediterranean diet can actually improve health in many ways has been growing for more than 50 years. “We are conducting large, long-term clinical trials that result in difficult clinical events,” he says. miguel martinez gonzalez at the University of Navarra in Pamplona, ​​Spain.

And there are not so many diets that are on the UNESCO list. Ten years ago, this United Nations agency Adding the Mediterranean diet to the representative list of intangible cultural heritage of humanity.

But despite all this praise, it was difficult to understand what it was about the diet that led to such benefits. First of all, nutritionists cannot agree on the exact form it should take. Additionally, family meals, home cooking, and other non-dietary factors should be considered. The good news is that over the past decade, we've begun to understand which components of our diets provide the greatest health benefits and why. This means we are now better able than ever to offer you the best advice…

Source: www.newscientist.com

The potential benefits of vibrating tablets in managing obesity by promoting a feeling of fullness in the stomach

The tablet contains a vibration motor powered by a small silver oxide battery. When stomach acid reaches the intestines, the outer layer of stomach acid dissolves. This closes the electronic circuit and begins to vibrate.

Shriya Srinivasan, Giovanni Traverso, MIT News

A vibrating drug that tricks the brain into thinking it’s full could one day treat obesity. This approach is significantly less invasive than gastric bypass surgery, and may be cheaper and have fewer side effects than drugs such as Wegovy and Ozempic.

Giovanni Traverso Researchers at the Massachusetts Institute of Technology have developed a pill that is about the same size as a standard multivitamin. The tablet contains a vibrating motor powered by a small silver oxide battery that is safe to swallow. When the tablet reaches your intestines, stomach acid dissolves the outer layer of the tablet. This closes the electronic circuit and begins to vibrate.

In experiments with pigs, some of the animals were given the tablets 20 minutes before being fed. These pigs ate about 40 percent less than pigs that were not given the tablets. They also had higher levels of hormones in their blood that typically signal a feeling of fullness.

Researchers believe the pill has potential as a treatment for obesity and hope to test it in humans “soon,” Traverso said. “This is a huge health problem, affecting more than 40 percent of the U.S. population, for example.”

He says the pill’s vibrations activate the same receptors that sense when the stomach lining expands after a large meal, sending a signal to the brain that you’re full. The prototype version vibrates for 30 minutes until the battery dies and passes on its own.

Traverso said future versions could be adapted to stay in the stomach semi-permanently and be turned on and off wirelessly as needed. She said people will likely react differently to the device, but it typically turns on automatically for short periods of time each day to reduce appetite, or is controlled by a smartphone app to suppress hunger pangs. It is also possible to do so.

Previous research by the same group found that Electrical stimulation of the stomach lining can actually cause hunger pangs, may lead to the treatment of anorexia in cancer patients. “I think this is really exciting because we’re just learning what we can do by stimulating different parts of the gastrointestinal tract in different ways.” [gastrointestinal] Traverso says. “When we eat, we feel full, but the question is can we induce that feeling of fullness? Can we create that illusion?

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Source: www.newscientist.com

High-speed rail benefits from Hyperloop’s setbacks

In 2013, Elon Musk published the following paper: white paper It teased the idea of ​​traveling at high speed from Los Angeles to San Francisco in just 35 minutes through a vacuum-sealed tube (a system he called Hyperloop). The idea was “born out of his hatred of California’s proposed high-speed rail system.” according to to his biographer Ashley Vance.

A decade later, Hyperloop One, the most high-profile startup to try to follow in Musk’s footsteps, close the door. News of its demise came less than two weeks after the Biden administration took office. announced Provides $6 billion in funding for high-speed rail projects across California.

This is a huge victory for public transit advocates, many of whom have struggled for decades to improve not just high-speed rail, but rail service overall. (Biden’s announcement includes Numerous other railway projects across the country.) But it’s by no means a complete victory.

First, many cities and states were fooled by the hyperloop’s siren song and then left adrift. In 2018, I reported on a story about the collapse of Arrivo (another hyperloop startup founded by one of Hyperloop One’s co-founders), and when I called the Colorado Department of Transportation to ask about the company’s bankruptcy, I finally got a response over the phone. I still vividly remember what I noticed. they didn’t know it happened.

Colorado wasn’t alone.Hyperloop One once promised to be built in West Virginia $500 million testing and certification facility state. They also built a test track near Las Vegas, where they briefly took some people through tubes. Clearly, that was enough for then-CEO Jay Walder. Claim It was “the first new means of mass transportation in over 100 years.”

Other hyperloop projects and companies remain, but most are located outside the United States. Thankfully, the country was already regaining momentum in investing in its rail system with a focus on faster trains.

The most high-profile initiative is Brightline, a company that recently expanded its existing service in Florida. all the way to orlandopassengers can travel there from as far away as Miami.

Brightline is also building what it calls “the nation’s first true high-speed rail network” between Los Angeles and Las Vegas. The project is supported by $3 billion in funding recently announced by the Biden administration and is expected to break ground in early 2024.

Building high-speed rail is about more than just money.There is deep-rooted problems Years of deregulation are getting in the way. With a project of this size, it’s difficult to stay on time and on budget.of other A big recipient of the newly announced federal funding (another $3 billion) is the high-speed rail project slated to run down the spine of California, a source of Mr. Musk’s ire.

Could the return of high-speed rail risk a rematch with the world’s richest man? Perhaps rail fans can take solace in seeing how distracted Musk has become since his 2013 white paper.

Moreover, aside from a few engineering competitions held by SpaceX, Musk has only enjoyed his Hyperloop project on a superficial level.

Musk once tweeted that he had received “verbal government approval.” build “New York-Phil-Balt-DC Underground Hyperloop” It was never built. In April 2022 he claimed His tunneling effort, The Boring Company, will “attempt to build a practical hyperloop.”The next day, the company tweeted “Full-scale testing of Hyperloop will begin later this year.” That also never happened.

Mr. Musk has spent the past decade with little involvement in Hyperloop, essentially outsourcing his efforts to abolish high-speed rail. The death of Hyperloop One casts a cloud over that premise, and the billionaire looks increasingly forced to make a decision: Will he be willing enough to find the time to finish the job himself?

Source: techcrunch.com