from the world's big
Getting more sleep curbs sugar cravings, study finds
Studies have also shown that two weeks of sleep deprivation increases the consumption of excess calories, particularly from energy-dense, high-carbohydrate snacks.
Sleeping more improves people’s diets, especially when it comes to cutting down sugar. These are the results of a study published in The American Journal of Clinical Nutrition.
Other research has also identified links between sleep, health, and obesity, with diet as a mediating factor. After performing a meta-analysis of previous intervention studies, the researchers found that partial sleep deprivation caused a 385-kcal increase in energy intake with no compensatory effects on energy expenditure. If sleep deprivation is sustained, this net positive energy balance may easily lead to weight gain and eventually obesity.
Studies have also shown that two weeks of sleep deprivation increases the consumption of excess calories particularly from energy-dense, high-carbohydrate snacks. The current study reports similar findings but is unique because it is the first to test healthy adults under free living conditions for the duration of four weeks.
The scientists recruited 42 participants who are habitual short sleepers and put them in two groups. The control group maintained their sleep habits, while the intervention group went through a personalized sleep consultation session with the goal of extending time in bed by 1-1.5 hours per night.
The consultation was conducted with a health psychologist and focused on improving the participants’ sleep hygiene practices which include avoiding excessive caffeine intake late in the day, avoiding going to bed too full or too hungry, and others that were relevant to the participant’s lifestyle.
The intervention group was also asked to identify barriers to achieving their selected behaviors, and were assisted to create implementation intentions. Implementation intentions are a useful self-regulatory strategy that helps people plan for unexpected challenges in achieving their goals by writing out “if-then” scenarios. In the end, the participants were prescribed a recommended bedtime, which was outlined in a “behavioral contract.”
As a result of the sleep advice, 86 percent of the group increased time spent in bed and half increased their sleep duration (ranging from 52 minutes to nearly 90 minutes). After four weeks, the sleep extension group had reduced their intake of sugar by an average of 11.8 g/day, equating to approximately one-third of the UK dietary guidelines’ daily allowance. There was also a trend towards a reduced fat intake.
There were, however, no significant differences between the two groups when it came to levels of physical activity, energy expenditure, or body weight. It appears that the quality of our sleep affects the overall quality of our diets, with sleep extension leading to a tendency to select foods with lower fat and higher protein contents.
"We hope to investigate this finding further with longer-term studies examining nutrient intake and continued adherence to sleep extension behaviours in more detail, especially in populations at risk of obesity or cardio-vascular disease," the authors say.
The scientists point out that the sleep extension strategy they used is effective and easy to implement, so sleep hygiene guidelines should be used in public health messages.
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Construction of the $500 billion dollar tech city-state of the future is moving ahead.
- The futuristic megacity Neom is being built in Saudi Arabia.
- The city will be fully automated, leading in health, education and quality of life.
- It will feature an artificial moon, cloud seeding, robotic gladiators and flying taxis.
The Red Sea area where Neom will be built:
Saudi Arabia Plans Futuristic City, "Neom" (Full Promotional Video)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="c646d528d230c1bf66c75422bc4ccf6f"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/N53DzL3_BHA?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Are we genetically inclined for superstition or just fearful of the truth?
- From secret societies to faked moon landings, one thing that humanity seems to have an endless supply of is conspiracy theories. In this compilation, physicist Michio Kaku, science communicator Bill Nye, psychologist Sarah Rose Cavanagh, skeptic Michael Shermer, and actor and playwright John Cameron Mitchell consider the nature of truth and why some groups believe the things they do.
- "I think there's a gene for superstition, a gene for hearsay, a gene for magic, a gene for magical thinking," argues Kaku. The theoretical physicist says that science goes against "natural thinking," and that the superstition gene persists because, one out of ten times, it actually worked and saved us.
- Other theories shared include the idea of cognitive dissonance, the dangerous power of fear to inhibit critical thinking, and Hollywood's romanticization of conspiracies. Because conspiracy theories are so diverse and multifaceted, combating them has not been an easy task for science.
A growing body of research suggests COVID-19 can cause serious neurological problems.
- The new study seeks to track the health of 50,000 people who have tested positive for COVID-19.
- The study aims to explore whether the disease causes cognitive impairment and other conditions.
- Recent research suggests that COVID-19 can, directly or indirectly, cause brain dysfunction, strokes, nerve damage and other neurological problems.
Brain images of a patient with acute demyelinating encephalomyelitis.
COVID-19 and the brain<p>A growing body of research reveals alarming neurological complications among COVID-19 patients. On Wednesday, for example, researchers from University College London published a <a href="https://academic.oup.com/brain/article/doi/10.1093/brain/awaa240/5868408" target="_blank">study</a> in the journal Brain that describes how some patients have suffered temporary brain dysfunction, strokes, nerve damage, and other neurological problems concurrent with COVID-19.</p><p>Some patients suffered brain inflammation as a result of a rare disease called acute disseminated encephalomyelitis, which can cause numbness, seizures, and confusion. One patient in the study even hallucinated monkeys and lions in her home.</p>
Photo by Mario Tama/Getty Images<p>A separate study published in the <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7198407/" target="_blank">Journal of Clinical Neuroscience</a> notes that some COVID-19 patients have also suffered neurological complications like impaired consciousness and acute cerebrovascular disease. The study notes that past viruses like MERS and SARS also seemed to cause neurological problems.</p><p>A troubling finding among this growing body of research is that some patients seem to suffer neurological damage even when respiratory symptoms aren't obvious. Additionally, scientists aren't sure whether damage from the disease will be permanent.</p><p style="margin-left: 20px;">"Given that the disease has only been around for a matter of months, we might not yet know what long-term damage COVID-19 can cause," Dr. Ross Paterson, joint first author of the University College London study, said in a <a href="https://www.eurekalert.org/pub_releases/2020-07/ucl-iid070620.php" target="_blank">press release</a>. "Doctors needs to be aware of possible neurological effects, as early diagnosis can improve patient outcomes."</p><p>If you've been diagnosed with COVID-19 and want to enroll in the study, visit <a href="https://www.cambridgebrainsciences.com/studies/covid-brain-study" target="_blank">cambridgebrainsciences.com/studies/covid-brain-study</a>.</p>
Coronavirus layoffs are a glimpse into our automated future. We need to build better education opportunities now so Americans can find work in the economy of tomorrow.