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Sleep Deprivation

All articles tagged with #sleep deprivation

Damon’s Odyssey Prep Demands a Full-Life Makeover
entertainment4 days ago

Damon’s Odyssey Prep Demands a Full-Life Makeover

Matt Damon says preparing for Christopher Nolan’s The Odyssey required a complete lifestyle change in his 50s, including adopting a gluten-free diet and intense training to reach his high-school weight, plus long filming days that often cut into sleep. The production pushed actors through physical discomfort across locations in Italy, Greece, Iceland, Scotland, and Western Sahara, with Zendaya facing freezing conditions, and Damon calling the role one of the great experiences of his career.

via Business Insider|
#entertainment#gluten-free-diet#matt-damon
Poverty's Brain Footprint: Socioeconomic Status Shapes Developing Minds More Than Expected
science29 days ago

Poverty's Brain Footprint: Socioeconomic Status Shapes Developing Minds More Than Expected

Analysis of nearly 12,000 children reveals socioeconomic status accounts for about 16% of variability in brain structure and function—outpacing IQ and parenting. SES-linked brain patterns cluster in sensory-motor networks and appear driven by daily tiredness and stress linked to sleep, and when SES is accounted for, many brain–IQ associations vanish. The differences are modifiable: improving sleep and reducing chronic family stress could reshape neurodevelopment, underscoring the potential of community and policy interventions.

via Neuroscience News|
#brain-development#mri-neuroimaging#science
Teens Sleep Less Than Ever, Study Finds
health1 month ago

Teens Sleep Less Than Ever, Study Finds

A Pediatrics study using Monitoring the Future data shows record-low sleep for U.S. teens, with only 22% of older teens getting seven hours. Sleep declines with age and disparities by race/ethnicity and parental education are widening. Causes include screen time, pandemic-era stress, and relentless academic pressure; researchers urge structural fixes and a culture that values sleep, including delaying high school start times to better fit teens’ biological rhythms.

via The Guardian|
#education-policy#health#mental-health
Sleep Deprivation Slows Brain Signals by Thinning Myelin, New Study Finds
health2 months ago

Sleep Deprivation Slows Brain Signals by Thinning Myelin, New Study Finds

A study combining MRI data from 185 sleep-deprived adults with animal experiments shows sleep loss thins brain myelin and disrupts cholesterol delivery, slowing interhemispheric signal transmission and leading to attention, memory, and motor impairments. Restoring myelin-related processes in animals by boosting cholesterol suggests a biological target for intervention. To protect brain health when sleep is limited, aim for 7–9 hours of sleep, consume healthy fats to support myelin, take short naps, optimize the sleep environment, and maintain regular exercise.

via Yahoo|
#brain#brain-imaging#health
Soha Ali Khan Seeks Doctor’s Tips to Stop Sleep Divorce
wellness2 months ago

Soha Ali Khan Seeks Doctor’s Tips to Stop Sleep Divorce

Soha Ali Khan talks with an expert about the ‘sleep divorce’ trend on her podcast. The doctor emphasizes that 7–8 hours of sleep are essential for memory, emotional health, and immunity, and explains how sleep deprivation can cause tachycardia, cognitive fog, and metabolic issues. To avoid sleep divorce, she suggests checking for sleep apnea with a doctor, avoiding alcohol before bed, and sleeping on one’s side. The piece also notes that while sleeping pills can be safe intermittently, frequent use should be guided by a clinician.

via NDTV|
#sleep#sleep-apnea#sleep-deprivation
Caffeine Could Reverse Sleep-Deprivation Memory Deficits, Mouse Study Finds
science3 months ago

Caffeine Could Reverse Sleep-Deprivation Memory Deficits, Mouse Study Finds

Researchers in Singapore found that caffeine can both prevent and reverse social-memory deficits caused by sleep deprivation in mice, by acting on the CA2 region of the hippocampus and dampening adenosine signaling. Regular caffeine exposure before sleep loss preserved social recognition, and applying caffeine to brain tissue from sleep-deprived mice improved CA2 signaling. While the results illuminate a mechanism linking sleep, memory, and caffeine, they are in mice and must be tested in humans to assess relevance for dementia risk and cognitive health.

via ScienceAlert|
#caffeine#hippocampus#memory
Creatine Super-Dosing: Promising for the Brain, Not a Silver Bullet
health4 months ago

Creatine Super-Dosing: Promising for the Brain, Not a Silver Bullet

The piece examines rising interest in higher creatine doses (around 20–25 g/day) for potential cognitive benefits, especially during sleep loss. While traditional dosing of about 5 g/day remains effective for most, some studies suggest higher doses may boost memory and brain energy in certain groups and blunt cognitive decline after sleep deprivation. For healthy individuals, 5–10 g/day is typically enough, and a cautious 20–25 g dose before a sleepless period might be worth a short trial, though GI upset can occur and more robust research is needed. The author, noting low cost and strong safety, suggests testing the approach over a few weeks to see if it helps in real life.

via Men's Health|
#cognition#creatine#dosing
Sleep deprivation triggers brain–gut signals that damage gut stem cells
health4 months ago

Sleep deprivation triggers brain–gut signals that damage gut stem cells

New research in Cell Stem Cell shows sleep deprivation in mice activates a brain-to-gut signaling cascade via the vagus nerve, triggering a surge of serotonin in the gut that damages intestinal stem cells and impairs the gut’s regenerative capacity. The study links insomnia to gut dysfunction and suggests acetylcholine from the vagus nerve drives serotonin release, highlighting potential therapeutic targets to protect gut health in sleep-disordered individuals.

via Live Science|
#gut-stem-cells#health#inflammatory-bowel-disease
Sleep Debt Triggers Wakeful Brain Cleanup at Attention's Expense
science5 months ago

Sleep Debt Triggers Wakeful Brain Cleanup at Attention's Expense

MIT researchers found that after sleep deprivation, brief attention lapses coincide with cerebrospinal fluid moving out of the brain—an event normally seen during sleep to clear waste. The brain appears to enter a sleep-like state during wakefulness to restore function, trading attention for fluid flow, with slowing breathing, lower heart rate, and pupil constriction; EEG/fMRI data from 26 volunteers point to the noradrenergic system, and findings were published in Nature Neuroscience.

via SciTechDaily|
#attention#cerebrospinal-fluid#glymphatic-system
Sleep Banking: Can Extra Rest Be Stored for a Future Wake-Up?
health5 months ago

Sleep Banking: Can Extra Rest Be Stored for a Future Wake-Up?

The BBC explores whether “sleep banking”—extending sleep in advance of anticipated deprivation—really helps alertness and performance. Early military studies suggested benefits, and some doctors and athletes have reported improved performance after extra sleep. Yet researchers remain divided: some argue sleep can’t be stored like a bank and that improvements may reflect avoiding debt rather than storing surplus. Most agree seven to nine hours of nightly sleep is optimal, and while 30–60 extra minutes or short naps before a busy period can help, sleep banking isn’t a long-term solution and shouldn’t replace regular sleep.

via BBC|
#cognitive-performance#health#naps