Eating walnuts may not lead to weight gain

Agencies
October 18, 2018

Los Angeles, Oct 18: A diet rich in walnuts may not lead to weight gain or increase the risk of obesity, a study conducted in healthy elders claims.

The study, published in the journal Nutrients, found that healthy elders consuming nearly 300 calories of walnuts daily did not show any negative effects on body weight and composition.

The findings by researchers at Loma Linda University (LLU) in the US also expand the knowledge of how nuts can affect the independently living, predominantly healthy, elderly people.

"There is a widespread fallacy that the fats in nut cause weight gain, and therefore could lead to issues such as obesity, or other weight-related health issues such as heart disease or diabetes," said Edward Bitok, an assistant professor at Loma Linda University.

"The research, however, shows that nuts are a healthful snack," Bitok said.

During the study, healthy elders -- with mean age of 69 years and 67 per cent women -- were randomly assigned to walnut or control diets.

Subjects in the walnut group received packaged walnuts, about 28–56 grammes per day, to incorporate into their habitual diet, while those in the control group abstained from walnuts.

After two years, no significant differences were noticed between the control and walnut groups regarding body weight or body fat, researchers said.

"Because of their high energy content, many people have believed the misconception that nuts cause unwanted weight gain, and avoid them altogether," said Bitok.

"This study helps us understand more about good fats versus bad fats and disproves the idea that the fats in nuts are unhealthy and cause weight-gain," he said.

The study was a sub-study of the Walnuts and Healthy Aging Study (WAHA), the first large study to test if walnuts play a part in healthy ageing.

The WAHA study tested how daily consumption of walnuts was associated with age-related cognitive decline and macular degeneration in seniors.

Prior studies examining walnut consumption and body weight have focused on younger individuals and for shorter durations, researchers said.

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News Network
February 28,2020

Feb 28: The best economic tonic for the coronavirus shock is to contain its spread and worry about stimulus later, said Raghuram Rajan, former head of the Reserve Bank of India.

There’s little central banks can do, and while more government spending would help, the priority should be on convincing companies and households that the virus is under control, he said.

“People want to have a sense that there is a limit to the spread of this virus perhaps because of containment measures or because there is hope that some kind of viral solution can be found,” Rajan told Bloomberg Television’s Haidi Stroud Watts and Shery Ahn.

“At this point I would say the best thing that governments can do is to really fight the epidemic rather than worry about stimulus measures that comes later,” said Rajan, who is currently a professor at the Chicago Booth School of Business.

The spread of coronavirus is pushing the world economy toward its worst performance since the financial crisis more than a decade ago.

Bank of America Corp. economists warned clients Thursday that they now expect 2.8% global growth this year, the weakest since 2009.

“We have moved from extreme confidence in markets to extreme panic, all in the space of one week,” said Rajan, who previously was chief economist at the International Monetary Fund.

The virus outbreak will force companies to rethink supply chains and overseas production facilities, he said.

“I think we will see a lot of rethinking on this, coming on the back of the trade disruption, now we have this,” Rajan said. “Globalization in production is going to be hit quite badly.”

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Agencies
July 24,2020

Colorado, Jul 24: A new study has found that physical stress in one's job may be associated with faster brain ageing and poorer memory.

Aga Burzynska, an assistant professor in the Department of Human Development and Family Studies, and her research team connected occupational survey responses with brain-imaging data from 99 cognitively normal older adults, age 60 to 79. They found that those who reported high levels of physical stress in their most recent job had smaller volumes in the hippocampus and performed poorer on memory tasks. The hippocampus is the part of the brain that is critical for memory and is affected in both normal ageing and in dementia.

Their findings were published this summer in Frontiers in Human Neuroscience under the research topic 'Work and Brain Health Across the Lifespan.'

"We know that stress can accelerate physical ageing and is the risk factor for many chronic illnesses," Burzynska said. "But this is the first evidence that occupational stress can accelerate brain and cognitive ageing."

She added that it is important to understand how occupational exposures affect the ageing of our brains.

"An average American worker spends more than eight hours at work per weekday, and most people remain in the workforce for over 40 years," Burzynska said. "By pure volume, occupational exposures outweigh the time we spend on leisure social, cognitive and physical activities, which protect our ageing minds and brains."

Physical demands at work

Burzynska explained that the association between "physical stress" and brain/memory were driven by physical demands at work. These included excessive reaching, or lifting boxes onto shelves, not necessarily aerobic activity. This is important because earlier work by Burzynska and her colleagues showed that leisure aerobic exercise is beneficial for brain health and cognition, from children to very old adults. Therefore, the researchers controlled for the effects of leisure physical activity and exercise.

As expected, leisure physical activity was associated with greater hippocampal volume, but the negative association with physical demands at work persisted.

"This finding suggests that physical demands at work may have parallel yet opposing associations with brain health," Burzynska explained. "Most interventions for postponing cognitive decline focus on leisure, not on your job. It's kind of unknown territory, but maybe future research can help us make some tweaks to our work environment for long-term cognitive health."

She added that the results could have important implications for society.

"Caring for people with cognitive impairment is so costly, on economic, emotional and societal levels," Burzynska said. "If we can support brain health earlier, in middle-aged workers, it could have an enormous impact."

The researchers considered and corrected for several other factors that could be related to work environment, memory and hippocampus, such as age, gender, brain size, educational level, job title, years in the occupation and general psychological stress.

One piece of the puzzle

"The research on this topic is so fragmented," Burzynska said. "One previous study linked mid-life managerial experience with greater hippocampus volume in older age. Another showed that taxi drivers had larger hippocampi than a city's bus drivers, presumably due to the need to navigate. In our study, job complexity and psychological stress at work were not related to hippocampal volume and cognition. Clearly, our study is just one piece of the puzzle, and further research is needed."

The magnetic resonance imaging (MRI) data used for the study was collected at the University of Illinois Urbana-Champaign between 2011 and 2014.

CSU researchers now can collect MRI data with the new 3T scanner at the University's Translational Medicine Institute.

With this new capability, Burzynska, along with Michael Thomas and Lorann Stallones of CSU's Department of Psychology, is launching a new project, "Impact of Occupational Exposures and Hazards on Brain and Cognitive Health Among Aging Agricultural Workers," which will involve collecting MRI brain scans and identifying risk and protective factors that could help the agricultural community age successfully. The project recently obtained funding as an Emerging Issues Short-Term Project from the High Plains Intermountain Center for Agricultural Health and Safety.

The Department of Human Development and Family Studies is part of CSU's College of Health and Human Sciences.

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News Network
July 20,2020

The International Cricket Council (ICC) today confirmed the ICC Men’s T20 World Cup in Australia 2020 has been postponed due to the ongoing COVID-19 pandemic

At today’s meeting of the IBC Board (the commercial subsidiary of the ICC), windows for the next three ICC men’s events were also agreed to bring clarity to the calendar and give the sport the best possible opportunity over the next three years to recover from the disruption caused by COVID-19.

The windows for the Men’s events are:

1. ICC Men’s T20 World Cup 2021 will be held October – November 2021 with the final on 14 November 2021

2. ICC Men’s T20 World Cup 2022 will be held October – November 2022 with the final on 13 November 2022

3. ICC Men’s Cricket World Cup 2023 will be held in India October – November 2023 with the final on 26 November 2023

The IBC Board agreed to continue to monitor the rapidly changing situation and assess all the information available in order to make a considered decision on future hosts to ensure the sport is able to stage safe and successful global events in 2021 and 2022.

The IBC Board will also continue to evaluate the situation in relation to being able to stage the ICC Women’s Cricket World Cup 2021 in New Zealand in February next year. In the meantime, planning for this event continues as scheduled.

The Board will also continue to evaluate the situation in relation to being able to stage the ICC Women’s Cricket World Cup 2021.

ICC Chief Executive Manu Sawhney said: “We have undertaken a comprehensive and complex contingency planning exercise and through this process, our number one priority has been to protect the health and safety of everyone involved in the sport.

“The decision to postpone the ICC Men’s T20 World Cup was taken after careful consideration of all of the options available to us and gives us the best possible opportunity of delivering two safe and successful T20 World Cups for fans around the world.

“Our Members now have the clarity they need around event windows to enable them to reschedule lost bilateral and domestic cricket. Moving the Men’s Cricket World Cup to a later window is a critical element of this and gives us a better chance of maintaining the integrity of the qualification process. This additional time will be used to reschedule games that might be lost because of the pandemic ensuring qualification can be decided on the field of play.

“Throughout this process we have worked closely with our key stakeholders including governments, Members, broadcasters, partners and medical experts to enable us to reach a collective decision for the good of the game and our fans. I would like to thank everyone involved for their commitment to a safe return to cricket.”

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