Articles tagged with Sleep Deprivation
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Research at St. Lawrence University found that pulling all-nighters leads to lower grade-point averages among college students. The study of 111 students indicates inadequate sleep quality and quantity negatively impact academic performance.
Research suggests that children's brain responses can accurately predict the impact of sleep loss on their ability to pay attention during the day. A study found that brain activity accounted for 44% of predicting visual attention scores after one week of reduced sleep.
A study of 1,362 Chinese adolescents found that sleep deprivation was significantly associated with increased risk of smoking and drinking. Sleeping less than eight hours at night, nightmares, and difficulty initiating sleep were key factors linked to these behaviors.
Airport baggage screeners may struggle to detect low-prevalence targets during sleep deprivation, impairing their performance. A study found that as time awake increases, errors rise while speed of detection accelerates, suggesting decision-stage impairments.
A study presented at SLEEP 2007 found that even a single night of sleep deprivation affects drivers' ability to coordinate eye movements with steering. The results suggest that sleep deprivation can lead to acute and chronic reductions in eye-steering coordination, potentially increasing the risk of accidents.
A study of 289 night shift nurses found 56% were sleep deprived, leading to increased error rates and safety risks. Experts recommend 7-8 hours of sleep per night for optimal health and performance.
Researchers found that sleep-deprived individuals can only process a small number of objects at a time, leading to memory decline. The brain's visual areas are also impaired, making it difficult to focus attention.
A study published in SLEEP found that sleep deprivation can adversely affect decision-making at a gambling table by elevating the expectation of gains and making light of losses. Brain imaging revealed selectively more active anticipation of reward in the nucleus accumbens, while attenuated response to losses in the insula.
Researchers found that BiP levels increase after prolonged wakefulness and decline during recovery sleep, affecting the need for additional rest. The study suggests that protective mechanisms against cellular stress may be attenuated after sleep deprivation, requiring animals to sleep more to recover.
A new study published in the journal Sleep found that sleep disturbance increases spontaneous pain in women. The study, conducted by Michael T. Smith and colleagues, used polysomnography to assess 32 healthy females and found that fragmented sleep profiles led to impaired natural pain control mechanisms.
Researchers found that people with a specific variation of the PERIOD3 gene, which regulates morning and evening activity levels, experience poor attention and working memory during early morning hours when kept awake. Those with this gene variant spend more time in slow-wave sleep when allowed to sleep normally.
A new study published in the journal SLEEP found that sleepy driver near-misses may be dangerous precursors to actual accidents. The study analyzed 35,217 individuals and reported that near-miss accidents associated with sleepiness were common, occurring in 18.3% of the sample.
A study published in SLEEP found that sleep deprivation significantly affects the ability to integrate emotion and cognition for guiding moral judgments. Continuous wakefulness has a particularly debilitating effect on judgment and decision-making processes.
A recent study by University of Missouri-Columbia professor Daniel Vinson found that patients who reported feeling sleepy were less likely to be injured. This contradicts the commonly accepted theory that sleep deprivation increases injury risk, suggesting a possible link between daytime sleepiness and reduced physical activity.
Researchers have identified amylase, an enzyme in saliva, as a biochemical marker linked to sleep loss. Flies subjected to prolonged sleep deprivation showed increased amylase levels, similar to humans who were kept awake for extended periods. The discovery aims to develop diagnostic tools and improve understanding of sleep disorders.
Psychological and behavioral therapies are considered an effective treatment for insomnia, producing reliable changes in several sleep parameters. The studies found that treatments such as cognitive behavioral therapy and relaxation conditions were effective for primary insomnia, with benefits well sustained over time.
Shorter nightly sleep in childhood may be a contributing factor to the growing obesity epidemic. Research suggests that insufficient sleep can disrupt normal metabolism and increase the risk of obesity, insulin resistance, and cardiovascular disease.
A new study at the Université de Montréal found that caffeine taken before a night shift or studying significantly hurts recovery sleep the next day. Caffeine makes daytime sleep episodes too shallow to override the biological clock, reducing sleep efficiency and duration.
Researcher Dr. Sean Drummond studied the effects of sleep deprivation on decision making, attention, and working memory performance. After 64 hours without sleep, volunteers' brains were unable to recruit help, highlighting the need for better understanding of sleep deprivation's consequences.
A new study published in the American Journal of Epidemiology found that middle-aged adults spend an average of 6.1 hours asleep per night, despite spending 7.5 hours in bed. The study also revealed significant racial and socioeconomic disparities in sleep duration, with African-American men sleeping only 5.1 hours a night.
A new IOM report emphasizes the significant impact of sleep disorders on public health, citing links to cardiovascular disease, obesity, and diabetes. The National Heart, Lung, and Blood Institute supports research and education initiatives to address these issues.
A new guide for junior doctors suggests that napping as short as 20-45 minutes can provide positive benefits for shift workers. This guidance aims to improve the survival and recovery of medical professionals working night shifts, ensuring better patient care.
A new CU-Boulder study found that morning grogginess can cause diminished short-term memory, counting skills, and cognitive abilities. Cognitive deficiencies following 24 hours of sleep deprivation have previously been shown to be comparable to the effects of alcohol intoxication.
The EU-funded sleep restriction project aims to characterize the effects of sleep loss on performance, mood, and quality of life. Researchers from five countries are working together to provide funding for doctoral and post-doctoral researchers and a high-level research training program.
A study of 34 young pediatric residents found that working long hours and overnight shifts impairs their attention, judgment, and driving abilities. The researchers compared the effects of heavy work shifts with those of consuming three to four alcoholic drinks, revealing similar impairments in both cases.
A new drug, CX717, has been shown to reverse the negative effects of sleep deprivation on brain activity and performance in monkeys. The drug targets AMPA receptors involved in cell-to-cell communication, restoring normal brain patterns and improving cognitive function.
Research suggests high school start times deprive teens of sleep, affecting cognitive performance and mood. Students perform better in the afternoon, but early morning classes report being wearier and less alert.
Scientists at the University of Wisconsin-Madison have identified a key gene involved in regulating sleep duration, which could lead to new approaches to treating sleep irregularities. The study found that mutations in this gene affect the amount of sleep individuals need and can even impact life span.
A new study reveals that sleep loss significantly increases cardiovascular disease risk in alcoholics, disrupting heart rate and sympathetic catecholamine levels. Behavioral treatments may help alleviate sleep abnormalities and related physiological issues.
A new study suggests that insufficient sleep may be a contributing factor to weight gain and the development of metabolic syndrome. This condition increases the risk of serious diseases such as diabetes and cardiovascular disease.
Research subjects who slept only four hours a night experienced an 18% decrease in leptin and a 28% increase in ghrelin, leading to a 24% increase in appetite. The study also found that sleep-deprived individuals tend to crave more sugary and salty foods.
Researchers discovered that migrating birds sleep less during migration periods and still perform normally. However, they experience impaired performance when not migrating, similar to humans with sleep disorders. The study provides an intriguing model for studying mechanisms of seasonal mood disorders.
A multi-institutional study reveals that medical residents experience significant adverse effects from sleep loss and fatigue on their cognitive abilities, relationships with patients and staff, and daily life. The study highlights the need for more education and countermeasures to address this critical issue in resident well-being.
Research reveals that sleep deprivation impairs certain brain areas, including the cerebral cortex, but also activates others, such as the cerebellum. This study sheds light on the complex role of sleep in cellular function and suggests new possibilities for treating sleep disorders.
Researchers found that sleep deprivation zero to five hours after learning impaired spatial orientation and recognition of physical surroundings, but not recollection of specific facts or events. The findings suggest that sleep helps regulate neuronal function in the hippocampus during memory consolidation.
A study of pediatric residents found that sleep deprivation significantly impair their ability to drive safely, with difficulty maintaining lane position and speed. Researchers suggest implementing strategies like planned naps and taxi services to mitigate the effects of fatigue on resident safety.
A study found that adding an extra hour of sleep to children's daily routine significantly improved their neurobehavioral functioning, including finger-tapping speed and reaction time. In contrast, reducing sleep by one hour had the opposite effect, with decreased night-wakings and increased percentage of sleep.
Researchers investigated sleep regulation in mice lacking cryptochrome molecules, revealing a new model for understanding sleep mechanisms. The study found that these mice did not exhibit increased non-REM sleep duration after sleep deprivation.
A new animal study reveals regional differences in brain activity during sleep, contradicting previous theories on sleep deprivation. The study found that different parts of the brain regulate sleep intensity, with frontal cortex involvement and hemispheric asymmetries playing a crucial role.
Researchers have identified two genes that play a crucial role in sleep function, found in both fruit flies and humans. These genes control the internal clock and protect against stress, highlighting the importance of sleep in maintaining overall health.
A study of 729 teenagers aged 12-17 found they slept an average of 8.5 hours during the week and 9.5 hours on weekends, with nearly half reporting daytime sleepiness. The later wake times among older teens suggest starting school later may improve attendance and academic performance.
A NASA-funded study is investigating the effects of reduced sleep on astronauts in space, with a focus on finding optimal combinations of anchor sleep and daily naps. The research aims to mitigate cognitive impairments, improve reaction times, and enhance overall well-being among space travelers.
Researchers from the University of Pennsylvania have identified a gene called CREB that plays a role in regulating rest's rejuvenating effects. The study found that CREB activity is inversely related to the physiological urge for sleep and that blocking this activity increases the need for sleep after a period of wakefulness.
Research in Occupational and Environmental Medicine shows that prolonged wakefulness impairs reaction times, accuracy, coordination, and attention span, similar to levels of alcohol intoxication. The effects are thought to be cumulative and pose a serious risk to safety, particularly in transportation settings.
A study published in Occupational and Environmental Medicine found that prolonged wakefulness impairs cognitive performance similarly to moderate alcohol consumption. The researchers tested 39 adults who worked in transportation, finding reaction times slowed by up to 50% after 17-19 hours of waking.
A new study published in Developmental Psychology found that older preteen children (6th grade) are at risk of chronic partial sleep deprivation, leading to increased daytime sleepiness. Family stress, parental education, and age may contribute to this issue, highlighting the need for better sleep habits and support.
Insomnia is a prevalent and serious condition that can have serious consequences. Effective treatments include identifying underlying causes, such as lifestyle habits, medical conditions, or medications, and adopting good sleep hygiene practices, like restricting bedtime, avoiding naps, and increasing exercise.
Researchers found that fruit flies exhibit behavioral and molecular changes similar to those observed in mammals, suggesting they may be capable of sleeping. The study provides new insights into the functions of sleep and could lead to the development of new treatments for human sleep disorders.
A study using fMRI scans found that sleep-deprived subjects displayed increased activity in the prefrontal cortex, while verbal learning tasks activated the parietal lobes, which showed better memory performance. The brain's compensation for sleep deprivation varies depending on the cognitive task.
Researchers found that patients with more extreme daily mood swings experienced greater improvements in therapy outcomes, regardless of treatment type. This suggests that increasing patient sensitivity to stimuli may be a more effective approach than finding the best therapy for each individual.
Researchers found that chronic sleep deprivation can lead to changes in glucose tolerance and hormone secretion, resembling the effects of advanced age or early stages of diabetes. Sleep deprivation also altered thyroid-stimulating hormone production and cortisol levels, with significant consequences for overall health.
Researchers found that a single night of disrupted sleep increases levels of interleukin-6, leading to daytime fatigue and decreased well-being. Healthy young men with normal sleep patterns experienced increased IL-6 secretion during the day after missing a night of sleep.
Research highlights the importance of sleep in managing childhood chronic pain, including its effects on physical health and mental well-being. Behavioral treatments such as relaxation techniques and distraction methods can also help improve children's sleep and reduce pain symptoms.
The Narcolepsy Network is launching a nationwide initiative to raise awareness about narcolepsy, a chronic neurological sleep disorder that affects an estimated 125,000 Americans. The 'Wake Up to Narcolepsy' program aims to educate people with the condition and their physicians about symptoms, diagnosis, and treatment options, helping ...
Researchers identified two critical periods of high error rates: before dawn and mid-afternoon. By understanding these patterns, workplaces can design jobs that exploit human strengths while protecting against attentional lapses caused by sleep deprivation.
Researchers investigate melatonin's potential to alleviate insomnia in patients with depression undergoing antidepressant treatment. The study aims to determine the optimal dose of melatonin to restore normal sleep patterns.
A new study reveals that hospital noise significantly disrupts the sleep of elderly patients in critical care units. The research found a strong correlation between peak sound levels and sleep arousals, with many patients spending hours awake at night.