NewsMakers
Using technology during mealtimes may decrease food intake, study finds
Being distracted by technology during mealtimes may decrease the amount of food a person eats, nutrition scientists suggest in a new study.
Being distracted by technology during mealtimes may decrease the amount of food a person eats, nutrition scientists suggest in a new study.
When 119 young adults consumed a meal while playing a simple computer game for 15 minutes, they ate significantly less than when they ate the same meal without distractions, said lead author Carli A. Liguori.
Liguori conducted the research while earning a master’s degree in food science and human nutrition at the University of Illinois at Urbana-Champaign. The findings were published recently in the Journal of Nutrition.
Participants’ food consumption was evaluated on two separate occasions – one day when they played the game while eating and on another day when they ate without distractions.
The game, called Rapid Visual Information Processing, tests users’ visual sustained attention and working memory and has been used extensively by researchers in evaluating people for problems such as Alzheimer’s disease and attention-deficit disorder.
The game randomly flashes series of digits on the computer screen at the rate of one per second. Participants in the study were instructed to hit the space bar on the keyboard whenever they saw three consecutive odd numbers appear.
“It’s fairly simple but distracting enough that you have to really be watching it to make sure that you don’t miss a number and are mentally keeping track,” Liguori said. “That was a big question for us going into this – how do you ensure that the participant is distracted? And the RVIP was a good solution for that.”
The participants, who had fasted for 10 hours before each visit, were told to consume as much as they wanted of 10 miniature quiches while they were either playing the game or eating quietly without distractions for 15 minutes.
The food was weighed and counted before and after it was given to each person.
After a 30-minute rest period, participants completed an exit survey that asked them to recall how many quiches they had been given and the number they had consumed. They also rated how much they enjoyed the meal as well as their feelings of hunger and fullness.
Liguori hypothesized that, in keeping with prior research, when people ate while using the computer game they would not only consume more food but would have poorer memory of what they ate and enjoy it less.
Instead, she found that participants ate less when they were distracted by the computer game. Moreover, participants’ meal memory – their ability to recall how much they had been served and eaten – was less accurate when they were distracted than when they ate quietly without the game.
However, participants’ consumption on their second visit was affected by which activity they had performed during their initial visit. The people who engaged in distracted eating on their first visit ate significantly less than their counterparts who did not experience the distracted eating condition until their second visit.
Moreover, when participants who engaged in the distracted eating on their first visit were served the quiches on their next visit, “they behaved as if they were encountering the food for the first time, as evidenced by a lower rate of consumption similar to that of those who began” with the non-distracted meal, according to the study.
“It really seemed to matter whether they were in that distracted eating group first,” said Liguori, who is a visiting faculty member in health and physical activity at the University of Pittsburgh. “Something about being distracted on their initial visit really seemed to change the amount they consumed during the nondistracted meal. There may be a potent carryover effect between the mechanism of distraction and the novelty of the food served.”
The results suggest that there may be a difference between distracted eating and mindless eating. Although the terms are often used interchangeably, Liguori hypothesized that they may be distinctly different behaviors with nuances that need to be explored.
Mindless eating may occur when we eat without intending to do so, Liguori hypothesized. For example, we grab a handful of candy from the jar at the office as we walk by or start snacking on chips because they happen to be in sitting front of us.
Conversely, distracted eating may occur when we engage in a secondary activity such as watching TV or answering emails while we are deliberately eating – for example, when we’re eating dinner, she said.
Although prior research indicated that people eat more when distracted, Liguori hypothesized that the differing results in her study may have been associated with examining within-person differences – comparing individuals’ consumption under the , rather than comparing individuals’ behavior to that of peers.
Or, she said, her findings could have been influenced by factors such as the type of distraction that was used, the type of food served or by using college students as the study population, limiting the diversity in participants’ age, race, food preferences and motivation to regulate their consumption.
The study was co-written by U. of I. food science and human nutrition professor Sharon M. Nickols-Richardson, who is also director of Illinois Extension and Outreach; and then-graduate student Cassandra J. Nikolaus.
NewsMakers
5 Tips to upgrade your sleep
Sleep contributes to better brain function, memory, concentration and lower stress. According to the National Institutes of Health, most adults need 7-9 hours of sleep every night to achieve maximum health benefits.
Good sleep isn’t just about waking up feeling rested and ready for the day. Quality sleep, and plenty of it, is important for your overall health. While you sleep, your body naturally recharges itself, which puts you at lower risk for cardiovascular problems and chronic conditions like diabetes, as well as improving your immune system.
Sleep also contributes to better brain function, memory, concentration and lower stress. According to the National Institutes of Health, most adults need 7-9 hours of sleep every night to achieve maximum health benefits.
If you’re falling short of the recommended amount of sleep, you may be able to make some adjustments that help you reap the health benefits of better rest. Learn what you can do to improve your sleep with these tips from the experts in safer, healthier sleep at Naturepedic.
Reduce Light Exposure
Your body’s natural circadian rhythms are closely aligned with light and dark. When your body senses light, it sends signals to your brain that it’s time to be awake. Light also suppresses your body’s production of melatonin, a hormone linked to sleep. Cutting back on bright lights and avoiding devices at least an hour before bed can tell your body it’s time to wind down, and sleeping in a dark room promotes better rest.
Invest in the Right Mattress
Your mattress plays a major role in your comfort through the night, so making sure it fits your needs is an important step toward getting better rest. Take control of your comfort with a quality mattress such as Naturepedic’s EOS (Ergonomic Organic Sleep) mattress, which is handcrafted and made without polyurethane foam, formaldehyde, flame retardants or fiberglass. The breathable layers of certified organic cotton, wool and GOTS-approved latex ensure better temperature regulation while naturally contouring the body. An added feature is the ability to customize each side of the bed by opening the zippers and adjusting the layered components for the perfect comfort combination.
Find the Right Sheets
Sheets that are too stiff, scratchy or otherwise unpleasant make it nearly impossible to settle in for a good night’s rest. Higher thread counts tend to be softer, higher quality sheets. However, you may need to experiment to find which material suits you best.
Set a Comfortable Temperature
When you’re too hot or cold, your mind tends to focus on those sensations rather than allowing you to slip into a slumber. Set your thermostat at a comfortable temperature, adding fans or adjusting the layers of bedding as necessary to achieve the perfect level of cozy comfort.
Use a Sound Machine
If you’re a light sleeper, noise can wreak havoc on your rest. Many people find sound machines offer two key benefits: They provide a soothing sound, such as rain or ocean waves, that allows you to relax and ease into slumber and constant background noise, so additional sounds are less disruptive.
Find more solutions for achieving better sleep at Naturepedic.com.
NewsMakers
What you should know about IBD
Two common conditions are irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). They’re often confused for one another, but these are actually two different GI disorders.
It may not be something you like to talk about, but if you have gastrointestinal (GI) problems, your symptoms may be far more common than you think. According to data from the American Gastroenterological Association, 60-70 million people living in the United States have gut health concerns.
Two common conditions are irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). They’re often confused for one another, but these are actually two different GI disorders.
IBS is a syndrome; it is defined by a group of symptoms, does not cause inflammation and rarely requires hospitalization or surgery. IBD, on the other hand, is an umbrella term used to describe disorders that cause chronic inflammation of your GI tract.
The disease is more common than you may realize; a study led by the Crohn’s & Colitis Foundation found nearly 1 in 100 people living in the U.S. have IBD. The two most common forms of IBD are Crohn’s disease and ulcerative colitis.
Understanding IBD Symptoms
Because it poses serious health risks and can cause permanent damage to your intestines, it’s important to be aware of what IBD is and recognize the symptoms. Your primary care doctor or gastroenterologist can help if you have concerns about these symptoms:
- Intense, crampy pain that doesn’t go away in a day or two or has been present on and off for weeks or longer
- A notable change in bowel movement frequency, whether more or less often
- Frequent diarrhea over several weeks, or loose stools multiple times a day
- Frequent constipation, or constipation alternating with diarrhea
- Urgency on a regular basis or inability to hold back the bowel movement before reaching the bathroom
- Blood with bowel movements
- Mucus in your stool regularly or paired with pain or other symptoms
- Always feeling as though you aren’t fully emptying your bowels
Other symptoms that may have a variety of causes but need extra attention especially if you notice them along with any of the symptoms above include pain outside of the gut, fatigue, loss of appetite and weight loss. In addition, children with IBD may have delays in growth and the onset of puberty.
Diagnosing IBD
No single test can confirm a Crohn’s or ulcerative colitis diagnosis. Your medical history and information obtained from diagnostic testing can exclude other potential causes of your symptoms, since gastrointestinal symptoms are common and can have a variety of causes.
Your first tests will likely include blood and stool laboratory tests. Further testing could include imaging studies of your gastrointestinal tract or a look inside your GI tract through an endoscope.
Identifying Treatment Options
Once an IBD diagnosis is confirmed, you can partner with your doctor to manage your disease. Treatment plans are highly personalized, as what works for one person may not for another. Medication and managing your diet and nutrition are two common treatment recommendations. In some cases, surgery can help improve your quality of life.
Clinical trials may also be an option for treating your IBD. Through clinical trials, researchers find new ways to improve treatments and quality of life. In fact, clinical trials represent the final stages of a long and careful research process to make new and improved treatment options for patients available.
However, an important part of clinical trials for IBD is patient participation. Without the enrollment of patients in clinical trials, new treatment options for IBD can be delayed or never become available.
Equally important to this process is having a diverse representation of patients that considers race, age or other categories. This helps researchers develop treatments that meet the needs of a vast IBD patient community.
If you’re interested in participating in a clinical trial, ask your doctor to help you find a trial that is right for you, and visit crohnscolitisfoundation.org to learn more about IBD and treatment options, including clinical trials.
NewsMakers
Unlocking the science of sleep: How rest enhances language learning
Getting eight hours of sleep every night helps the brain to store and learn a new language.
Sleep is critical for all sorts of reasons, but a team of international scientists has discovered a new incentive for getting eight hours of sleep every night: it helps the brain to store and learn a new language.
A study led by the University of South Australia (UniSA) and published in the Journal of Neuroscience has revealed that the coordination of two electrical events in the sleeping brain significantly improves our ability to remember new words and complex grammatical rules.
In an experiment with 35 native English-speaking adults, researchers tracked the brain activity of participants learning a miniature language called Mini Pinyin that is based on Mandarin but with similar grammatical rules to English.
Half of the participants learned Mini Pinyin in the morning and then returned in the evening to have their memory tested. The other half learned Mini Pinyin in the evening and then slept in the laboratory overnight while their brain activity was recorded. Researchers tested their progress in the morning.
Those who slept performed significantly better compared to those who remained awake.
Lead researcher Dr Zachariah Cross, who did his PhD at UniSA but is now based at Northwestern University in Chicago, says sleep-based improvements were linked to the coupling of slow oscillations and sleep spindles – brainwave patterns that synchronise during NREM sleep.
“This coupling likely reflects the transfer of learned information from the hippocampus to the cortex, enhancing long-term memory storage,” Dr Cross says.
“Post-sleep neural activity showed unique patterns of theta oscillations associated with cognitive control and memory consolidation, suggesting a strong link between sleep-induced brainwave co-ordination and learning outcomes.”
UniSA researcher Dr Scott Coussens says the study underscores the importance of sleep in learning complex linguistic rules.
“By demonstrating how specific neural processes during sleep support memory consolidation, we provide a new perspective on how sleep disruption impacts language learning,” Dr Coussens says. “Sleep is not just restful; it’s an active, transformative state for the brain.”
The findings could also potentially inform treatments for individuals with language-related impairments, including autism spectrum disorder (ASD) and aphasia, who experience greater sleep disturbances than other adults.
Research on both animals and humans shows that slow oscillations improve neural plasticity – the brain’s ability to change and adapt in response to experiences and injury.
“From this perspective, slow oscillations could be increased via methods such as transcranial magnetic stimulation to accelerate aphasia-based speech and language therapy,” Dr Cross says.
In future, the researchers plan to explore how sleep and wake dynamics influence the learning of other complex cognitive tasks.
“Understanding how the brain works during sleep has implications beyond language learning. It could revolutionize how we approach education, rehabilitation, and cognitive training.”
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