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1,204 news posts in Mind and body

Health

01 Oct 2021

Discussing the future of aging research with Specialty Chief Editors, Drs. Morten Scheibye-Knudsen and Richard Siow

Image: BlurryMe/Shutterstock.com In honor of the international day of Older Persons (October 1st) we spoke to the first onboarded Specialty Chief Editor of Frontiers in Aging, Dr. Morten Scheibye-Knudsen, and the most recently joining Specialty Chief Editor Dr. Richard Siow. Given Frontiers in Aging’s 1st Year anniversary we look forward to the future of the field of aging research, and its goals.   Dr. Morten Scheibye-Knudsen is the Specialty Chief Editor of the Interventions in Aging section, within Frontiers in Aging, and Associate Professor of DNA damage and interventions in aging, at the University of Copenhagen, Denmark. With the mission “to discover interventions leading to healthier, happier and more productive lives“, the Scheibye-Knudsen Lab is working on understanding the impact of DNA damage on a cellular and organismal level. This can then lead to the development of interventions to improve, not only our lifespan but importantly our health-span, towards a future of healthy aging.   Dr. Richard Siow is the Specialty Chief Editor of the newly launched Nutrition in Aging and Healthy Longevity section within Frontiers in Aging, and the Director of Aging Research at King’s (ARK), King’s College London, United Kingdom. Dr. Siow graduated in Nutrition and his research over the past 20 years has focused on cardiovascular aging and better understanding the role of diet and nutrigenomics on molecular pathways in aging and healthy longevity. The mission of ARK is to increase knowledge of aging mechanisms in collaboration with international academic and industry partners, allowing a multi-disciplinary understanding to be built around the many aspects of human aging and healthy physical, mental and financial longevity, ranging from cellular mechanisms […]

Health

30 Sep 2021

Living at high altitudes may lower chance of having a deadly stroke

By Conn Hastings, science writer A town in the Ecuadorian Andes mountains. Image: ireneuke/Shutterstock.com Researchers in Ecuador are the first to investigate the risk of stroke-related death and hospitalization in people living at four different altitude ranges. They found that those living at higher altitudes have a reduced risk of death or hospitalization because of a stroke, and tend to experience strokes at a greater age. This protective effect was greatest between 2,500 and 3,500 meters.  Could living at high altitudes affect your chance of suffering a stroke? This intriguing question is at the heart of a new study in open-access journal Frontiers in Physiology. The study is the first to examine the incidence of stroke-related hospitalization and death in people living at four different elevations in Ecuador, and includes data gathered over 17 years on more than 100,000 stroke patients. Strikingly, the study finds that people living at higher altitudes have a lower risk of stroke and stroke-related death, and that this protective effect is strongest at between 2,000 and 3,500 meters. ► Read original article► Download original article (pdf) Having the right altitude Stroke is a leading cause of death and disability worldwide. A stroke typically occurs because of a […]

Psychology

28 Sep 2021

Deep dive into global Twitter posts reveals possible drop in negativity towards Covid-19 pandemic

By Colm Gorey, Frontiers science writer Image: Sattalat Phukkum/Shutterstock.com An in-depth analysis of more than 120m Twitter posts across the globe has shown that users’ perception of the Covid-19 pandemic became less negative as it has progressed. In a paper published to Frontiers, its authors found a significant decrease in negativity in countries which rolled out extensive vaccination programs, such as the US, the UK, and Canada. The devastation and distress brought by the Covid-19 pandemic to millions of lives goes without question, but trying to gauge an entire planet’s changing perception of the disease over time can seem an almost impossible task. Yet with some estimates showing that almost 4.5bn people now use some form of social media online, researchers are tapping into this vast resource in an attempt to create a clearer picture of how the perception of this life-changing event has shifted since early 2020. Now, publishing their findings in Frontiers in Psychology, scientists from Vanderbilt University in the US and the Federal Technological University of Paraná in Brazil have tapped into one enormous dataset of Twitter posts (tweets) to show that the number of negative posts about Covid-19 is dropping, especially in countries which rolled out […]

Microbiome

23 Sep 2021

Bat guts become less healthy through diet of ‘fast food’ from banana plantations

By Tania Fitzgeorge-Balfour, science writer Pallas’s long-tongued bat (Glossophaga soricina) feeding on banana flowers. Image credit: Julian Schneider New research reveals there is a stark difference between the gut bacteria of nectar-feeding bats foraging in conventional monoculture banana plantations and those bats who forage in their natural forest habitat or organic plantations. This is the first study to show an association between habitat alteration, sustainable agriculture and the gut microbiota of wildlife. Nectar-feeding bats foraging in intensively managed banana plantations in Costa Rica have a less diverse set of gut microbes in comparison to bats feeding in their natural forest habitat or organic plantations, reveals new research published today in Frontiers in Ecology and Evolution. This the first study to show an association between habitat alteration, sustainable agriculture and the gut microbiota of wildlife. “Organic and conventional monoculture banana plantations both provide a very reliable food source for some nectar-feeding bat species. However, bats foraging in the intensively managed plantations had a reduced diversity of gut microbes, which could be a sign of gut dysbiosis, an unhealthy imbalance of its microbial symbionts,” explains Priscilla Alpízar, first author of this study, a doctoral student at the Institute of Evolutionary Ecology and […]

Life sciences

21 Sep 2021

Human whistled languages may offer model for how to study dolphin communication

By Peter Rejcek, science writer Image credit: Ricardo Canino / Shutterstock More than 80 cultures still use whistled language to communicate over long distances by simplifying words, syllable by syllable, into whistled melodies. Researchers trying to decode how bottlenose dolphins, highly social mammals with the second largest brain relative to their body size after humans, communicate are leveraging insights from studies looking at how human whistled speech is structured and organized. This model may provide new algorithms for helping understand how dolphins’ whistles encode information. Whistling while you work isn’t just a distraction for some people. More than 80 cultures employ a whistled form of their native language to communicate over long distances. A multidisciplinary team of scientists believe that some of these whistled languages can serve as a model for elucidating how information may be encoded in dolphin whistle communication. They made their case in a new paper published in the journal Frontiers in Psychology. Whistled human speech mostly evolved in places where people live in rugged terrain, such as mountains or dense forest, because the sounds carry much farther than ordinary speech or even shouting. While these whistled languages vary by region and culture, the basic principle is […]

Life sciences

16 Sep 2021

Scientists pretend to be Neanderthals to explore how they caught birds in caves for food

By Mischa Dijkstra, Frontiers science writer Image credit: Gorodenkoff / Shutterstock.com From fossil evidence and through scientific role-play, researchers reconstruct that Neanderthals probably used fire and tools to dazzle, corral, and catch choughs, communally roosting birds, inside caves at night. The choughs would not only have contributed welcome calories and micronutrients to the Neanderthals’ diet, but may also have yielded elements for their personal decoration. Neanderthals, our closest relatives, became extinct between 40,000 to 35,000 years ago. Since the discovery of the first Neanderthal fossil 165 years ago, scientists have learned more about Neanderthals – including their culture, sociality, ecology, diet, control of fire, production and use of tools, physiology, and even their genomic code – than about any other non-human hominin. Here, Spanish researchers use a highly original approach – scientific “role play” – to reconstruct a likely novel element of Neanderthal behavior: cooperating with group members while using fire and tools to catch choughs, birds from the crow family, from their night roosts inside caves. Their findings are published in Frontiers in Ecology and Evolution. Neanderthals are known to have eaten plants, fungi, shellfish, roasted pinecones, and flesh from stranded dolphins. At the same time, they were important […]

Life sciences

10 Sep 2021

Regular exercise may lower risk of developing anxiety by almost 60%

By Colm Gorey, Frontiers science writer Image: BGStock72/Shutterstock.com The findings of a study published with Frontiers suggests that those who engage in regular exercise may lower their risk of developing anxiety by almost 60%. Using data on almost 400,000 people spanning more than two decades, the authors from Lund University in Sweden were also able to identify a noticeable difference in exercise performance level and the risk of developing anxiety between males and females. A quick online search for ways to improve our mental health will often come up with a myriad of different results. However, one of the most common suggestions put forward as a step to achieving wellness – and preventing future issues – is doing some physical exercise, whether it be a walk or playing a team sport. Anxiety disorders – which typically develop early in a person’s life – are estimated to affect approximately 10% of the world’s population and has been found to be twice as common in women compared to men. And while exercise is put forward as a promising strategy for the treatment of anxiety, little is known about the impact of exercise dose, intensity or physical fitness level on the risk of […]

Health

21 Aug 2021

How well did the EU respond to the first wave of the Covid-19 pandemic? Experts now give their verdict

By K.E.D. Coan, science writer Alexandros Michailidis / Shutterstock.com During the first wave of the pandemic, the European Union’s COVID-19 response highlighted ongoing limitations of the agencies put in place to prepare for such health crises, shows a recent study. According to a panel of health experts, national interests conflicted with coordinated Europe-wide health regulations. To prepare for the future, the panel recommends better funding and empowerment of these institutions. A new study in Frontiers in Public Health presents a review of expert opinions on the achievements and shortcomings of the European Union’s (EU) COVID-19 response. The aim: to draw lessons for future pandemics. In 2004, the EU created the European Centre for Disease Prevention and Control (ECDC), precisely with the goal of coordinating cross-border disease surveillance and guidelines. However, the interviewed public health experts largely agreed that, although there were some successes, individual countries’ interests often superseded EU-wide responses. “The EU’s Joint Procurement Mechanism was recognized as a great achievement and a valid instrument for crisis management,” says lead author Marie Gontariuk, of Maastricht University in the Netherlands. “But experts also agreed that further improvement was possible specifically regarding the timeliness and efficacy.” “During the current pandemic specifically, the […]

Health

20 Aug 2021

World Mosquito Day: How the pest’s diet could lead to discovery of new antimalarial drug

By Suzanna Burgelman/ PhD student and fellow Trizah Koyi Milugo, ICIPE PhD student and fellow Trizah Koyi Milugo. Image: Trizah Koyi Milugo A preventable disease, malaria still threatens millions of people around the world. World Mosquito Day raises awareness about malaria and its transmission via mosquitos. Researchers such as PhD student Trizah Koyi Milugo focus their research on malaria control and prevention and, in her case, is researching the development of a novel tool for controlling malaria transmission. In 2019, 229m clinical cases of malaria occurred and 409,000 people died of the disease, most of them children in Africa. The disease is found in more than 100 countries worldwide, but roughly 70% of the world’s malaria burden is concentrated in Africa and India. Humans get infected with the malaria virus through mosquito bites. Other than malaria, mosquitos carry an array of dangerous diseases, such as dengue, zika, and west Nile virus. Mosquitos are the world’s deadliest creature. World Mosquito Day raises awareness about the dangers of mosquitos and the devastating consequences of malaria. Trizah Koyi Milugo, a PhD student at the International Center of Insect Physiology and Ecology (ICIPE), is currently researching the development of a novel tool for controlling […]

Life sciences

17 Aug 2021

Microplastics hinder the growth of microscopic marine animals

By Tania Fitzgeorge-Balfour, science writer Example of marine dinoflagellates (Dinophysis sp., not the species studied in the paper). Image credit: Rattiya Thongdumhyu/Shutterstock.com Plastic pollution is not just a problem for larger marine animals. Dinoflagellates, which are single-celled marine predators, can also ingest microplastic which in turn limits their growth and consequently their overall abundance. This has implications for the larger animals that feed on these microscopic predators, in terms of available food and the transfer of energy up the food chain. Microscopic marine predators can ingest microplastic, which in turn lowers their growth and overall abundance, finds a recent study published in Frontiers in Marine Science. This has implications for the larger marine animals that feed on these tiny predators, both in terms of available food and the transfer of energy up the food chain. “The plastic pollution of our oceans isn’t just affecting whales and sea turtles, it also impacts the small, microscopic animals towards the bottom of the food chain,” says Susanne Menden-Deuer, coauthor of this research and a professor at the Graduate School of Oceanography, University of Rhode Island, US. “Our study shows that some single-celled marine predators called dinoflagellates ingest microplastic particles, and when they do, […]

Health

12 Aug 2021

Are enteroviruses behind mysterious outbreaks of chronic fatigue syndrome?

By Prof Maureen Hanson, Cornell University Image: Andrea Piacquadio/Pexels.com Chronic fatigue syndrome is a long-term illness with a wide range of symptoms, no known treatment, and undetermined origins. However, with as many as 65m people across the world living with the illness, researchers continue to search for answers. Now, Prof Maureen Hanson of Cornell University discusses how she and graduate student Adam O’Neal searched through the research archives to see whether a genus of RNA viruses called enteroviruses are the most likely culprits and whether the findings have implications in future ‘long Covid’ research. Like SARS-CoV-2, which causes Covid-19, viruses, enteroviruses (EVs) are RNA viruses that can lead to cause serious illness and death. One type of EV causes poliomyelitis, which is now largely conquered through near-universal vaccination. But no vaccine exists against many other types of EVs, which are free to circulate widely. Indeed, the Centers for Disease Control and Prevention estimates between 10m-15m enteroviral infections occur each year in the US. EVs have long been suspected as causal agents in outbreaks of an illness that is now usually named ME/CFS (myalgic encephalomyelitis/chronic fatigue syndrome). Outbreaks have been documented since the turn of the previous century and may have […]

Health

11 Aug 2021

Tiny ‘maniac’ robots could deliver drugs directly to central nervous system

By Conn Hastings, science writer Image credit: Life science / Shutterstock.com A new study investigates tiny tumbling soft robots that can be controlled using rotating magnetic fields. The technology could be useful for delivering drugs to the nervous system. In this latest study, researchers put the robots through their paces and showed that they can climb slopes, tumble upstream against fluid flow and deliver substances at precise locations to neural tissue.     Would you let a tiny MANiAC travel around your nervous system to treat you with drugs? You may be inclined to say no, but in the future, “magnetically aligned nanorods in alginate capsules” (MANiACs) may be part of an advanced arsenal of drug delivery technologies at doctors’ disposal. A recent study in Frontiers in Robotics and AI is the first to investigate how such tiny robots might perform as drug delivery vehicles in neural tissue. The study finds that when controlled using a magnetic field, the tiny tumbling soft robots can move against fluid flow, climb slopes and move about neural tissues, such as the spinal cord, and deposit substances at precise locations.              Diseases in the central nervous system can be difficult to treat. “Delivering drugs orally or […]