Articles tagged with Sleep Deprivation
Researchers have identified brain cells in fruit flies that regulate sleep drive, which becomes more active when flies are kept awake. These findings may offer insights into human sleep disorders and potential new strategies to promote long-lasting sleep for those with chronic insomnia.
A study from the University of Pennsylvania found that sleep deprivation impairs protein production in the hippocampus, a brain region crucial for memory. By manipulating a gene involved in regulating protein synthesis, researchers were able to prevent these deficits and restore memory formation in mice.
Researchers found that sleep loss reduces gene expression involved in cholesterol transport, leading to lower levels of good cholesterol. The study also discovered that sleep-deprived individuals have fewer high-density HDL lipoproteins, which increases the risk of cardiovascular disease.
A study at Florida Atlantic University identifies a gene, translin, that regulates sleep and metabolism, linking it to sleep deprivation and metabolic disorders like diabetes and obesity. The researchers used fruit flies to test the gene's role in sleep regulation, finding that it is essential for modulating sleep in response to metabo...
The SleepHealth app tracks users' sleep quality, duration, and related health issues, providing insights for research and a personalized tool to improve well-being. The app aims to accelerate treatments and interventions for sleep disorders, impacting public health.
A study found that adolescents who slept only five hours a night for seven nights experienced significant cognitive degradation, including decreased sustained attention and working memory. Even after recovery sleep, residual effects persisted.
A study published in SLEEP found that sleep deprivation amplifies the joy of eating, particularly sweet and salty high-fat snack foods. Sleep-restricted participants ate nearly twice as much fat as those with normal sleep, despite minimal energy needs.
A groundbreaking study from Michigan State University found that sleep-deprived individuals are 4.5 times more likely to sign false confessions than those who have slept eight hours the night before. This raises complex questions about police interrogation practices and the use of sleep deprivation in interrogations.
A study found that two consecutive nights of extended sleep can counteract the increased risk of diabetes associated with short-term sleep restriction during the work week. Insulin sensitivity and diabetes risk returned to normal after two nights of extended sleep.
A Johns Hopkins surgeon calls on hospitals to end preventable bouts of food and sleep deprivation in emergency rooms and surgical units. The expert argues that acute malnutrition and sleep deprivation have increased with busier hospitals and an aging population, leading to delayed healing and readmissions.
A new study finds that high school students lose an average of 32 minutes of sleep per night following the springtime change to daylight saving time. This leads to increased daytime sleepiness and decreased vigilance, posing a risk to teen drivers. The study suggests that this can further restrict their already limited sleep schedules.
Researchers at Washington State University discovered that altering the timing of an animal's sleep can have a significant impact on its immune response and overall sleep quality. The study found that mice with disrupted circadian cycles had blunted or overactive immune responses, making them more susceptible to illness.
A new study by UC San Francisco researchers found that people who sleep six hours a night or less are four times more likely to catch a cold compared to those who spend more than seven hours in slumber. The study used objective sleep measures and found that short sleep was the most significant factor in predicting illness.
A new study confirms that insufficient sleep is connected to a greater likelihood of catching a cold. Adults who slept less than six hours a night were four times more likely to catch the cold compared to those who got more than seven hours of sleep.
Scientists discovered that the brain chemical GABA acts as a 'brake' to regulate wakefulness and sleep, leading to hyperactivity in mice without GABA. The study has implications for developing new drugs to promote better sleep and treat conditions like mania and bipolar disorder.
Researchers at the University of Pennsylvania found that sleep deprivation significantly reduces aggression in fruitflies, impairing their mating success. They also identified a molecular pathway involving octopamine signaling that governs recovery of aggressive behaviors.
Researchers found that sleep loss for one night altered the regulation and activity of clock genes in human tissues, particularly in adipose tissue and skeletal muscle. This could suggest a link between disrupted circadian rhythms and impaired glucose tolerance and metabolic pathologies.
A study suggests that sleep deprivation can prevent the consolidation of traumatic memories, reducing flashbacks. Participants who slept normally experienced more intrusive memories than those who were sleep-deprived.
A new study suggests that bright light exposure at the end of a night shift may enhance driving performance, particularly in low light environments. Bright light significantly suppressed melatonin levels, but did not immediately improve subjective alertness or psychomotor vigilance performance.
A new study suggests that one night of partial sleep deprivation promotes biological aging in older adults by activating gene expression patterns consistent with increasing damage accumulation. The findings support the hypothesis that sleep deprivation may be associated with elevated disease risk by promoting molecular processes involv...
A new study found that refraining from late-night calories helps prevent some of the decline in neurobehavioral performance during sleep restriction. Subjects who fasted performed better on reaction time and attention lapses than those who had eaten during late-night hours.
A new study reveals that young U.S. veterans with post-traumatic stress disorder (PTSD) are at a higher risk of developing obstructive sleep apnea (OSA). The study found that the severity of PTSD symptoms is strongly associated with an increased risk of OSA, and that nearly 70% of participants had a high risk for sleep apnea.
A WSU study reveals that sleep deprivation can lead to catastrophic decisions in crisis situations, affecting doctors, first responders, and military personnel. The experiment simulated real-world scenarios, showing that sleep-deprived individuals struggle to adapt to changing circumstances.
A new RAND Corporation study reveals persistent sleep problems among service members, negatively affecting mental health and operational readiness. The study recommends education and awareness programs to shift cultural attitudes and develop policies to promote healthy sleep habits.
A recent survey of 236 cardiologists found significant gaps in their knowledge about heart-healthy diets, with only 13.5% feeling adequately trained to discuss nutrition with patients. Dark chocolate was also shown to have health benefits in sedentary older adults, improving energy levels and exercise stamina.
New research suggests that day-to-day variations in sleep duration, rather than overall sleep duration, can impact food intake in teenagers. The study found that teens who slept more or less on any given night consumed an average of 201 more calories per day, with higher rates of nighttime snacking and increased carbohydrate consumption.
Researchers found common biomarkers of sleep debt in humans and rats, indicating a link to metabolic disorders such as weight gain, diabetes, and cardiovascular disease. The study also identified potential biomarkers, oxalic acid and diacylglycerol 36:3, which could serve as indicators of sleep quality and quantity.
A new study found that sleep-deprived individuals consume more fat and less carbohydrates, while displaying increased connectivity in the salience network, which is linked to emotional responses and bodily sensations. This unique approach examines changes in brain activity's impact on eating behavior following sleep deprivation.
Researchers examined 50 years of sleep research to investigate whether improving sleep early in life can delay or reverse age-related changes in memory and thinking. The findings suggest that sleeping well in middle age predicted better mental functioning 28 years later.
A new study reveals that US workers are prioritizing paid work time over sleep, with short sleepers working longer hours and traveling more. Flexible work start times could be a solution to address this issue and promote better sleep habits.
Scientists at MCW found a link between sleep loss and cell injury, particularly in the liver, lung, and small intestine. Recovery sleep from deprivation restores balance and decreases cell injury, elucidating previous research on sleep abnormalities as risk factors for diseases like cardiovascular disease and cancer.
A Penn-led team discovered that a specific set of cells in the brain are responsible for memory problems after sleep loss. By increasing levels of a signaling molecule, they prevented mice from having memory deficits.
A study published in The Lancet Neurology found that astronauts suffer from significant sleep deficiency during spaceflight, with average durations of less than six hours per night. This is despite NASA's scheduled 8.5 hours of sleep, and the build-up of sleep deficiency begins long before launch.
Researchers identified a gene mutation associated with short sleep duration and resistance to sleep deprivation in humans. The BHLHE41 variant allowed some adults to function normally on less than six hours of sleep per night.
Research found that sleep-deprived individuals who viewed photos of a crime and then read false information were more likely to report remembering the false details. The study suggests that chronic sleep deprivation may increase susceptibility to false memories, with implications for eyewitness reliability.
A study by Michigan State University researchers found that sleep deprivation can lead to errors in memory, particularly in simulated crimes, with those getting less than five hours of sleep more likely to misremember event details.
A new study published in PNAS found that metabolic processes are significantly increased during sleep deprivation, with 27 metabolites found at higher levels. This discovery could be crucial when looking at the best time of day to test for diseases such as cancer and heart disease.
A twin study found a strong association between socioeconomic deprivation and decreased sleep duration, even after accounting for genetics and shared family environment. The study suggests that improving neighborhood-level factors may lead to better sleep habits.
A comprehensive study found that children who consistently received less than the recommended hours of sleep during infancy and early childhood had increases in both obesity and adiposity at age 7. Lower sleep scores were associated with higher levels of all body measurements reflecting obesity and adiposity, including abdominal fat.
Researchers found that prior sleep deprivation enhances immune system response and recovery from infection in fruitflies. Flies with adequate recovery sleep after infection showed better survival rates compared to those without it.
A new study published in The Journal of Neuroscience found that extended wakefulness can result in neuronal injury and loss of brain cells, particularly in the locus coeruleus (LC) neurons. Chronic sleep loss may be more serious than previously thought and may even lead to irreversible physical damage.
Researchers at Temple University found that chronic sleep disturbance can trigger the onset of Alzheimer's disease. The study used a transgenic mouse model to show that sleep deprivation impairs memory and tau metabolism, leading to accelerated brain pathology.
Aging disrupts sleep patterns in fruit flies, leading to increased protein misfolding and cellular stress. A molecular chaperone treatment restored youthful sleep patterns, suggesting a potential therapeutic approach to addressing age-related sleep disorders.
A new study from Uppsala University reveals that one night of sleep deprivation can increase morning blood concentrations of NSE and S-100B in healthy young men. These molecules are typically found in the brain and may indicate a loss of brain tissue. The findings suggest that good sleep is crucial for maintaining brain health.
Research reveals sleep deprivation's detrimental effects on pancreas function, glucose homeostasis, and insulin secretion, with age exacerbating these issues. Older mice were more susceptible to the negative impact of sleep deprivation on blood sugar control.
Researchers discovered that sleep loss affects specific genes involved in the regulation of the immune system, triggering an inflammatory response. This link was confirmed in a population study, suggesting that chronic sleep deprivation may contribute to the development of inflammatory diseases.
Researchers found that irregular bedtimes disrupt natural body rhythms, causing sleep deprivation and undermining brain maturation. Children who switched to regular bedtimes showed improvements in behavior, while those with inconsistent schedules had worsening behavioral scores.
A new study found that sleep deprivation leads to increased food purchasing the following day, with participants buying more calories and grams of food. Additionally, ghrelin levels were higher after total sleep deprivation, but this increase did not correlate with food purchasing behavior.
A new study reveals that sleep deprivation causes noticeable changes in facial appearance, including more hanging eyelids, redder eyes, and paler skin. These changes can have social consequences, affecting how others perceive and interact with individuals who are sleep-deprived.
A new UC Berkeley study reveals that sleep-deprived brains prefer unhealthy snacks and junk foods over whole grains and leafy greens. The researchers found impaired activity in the frontal lobe but increased activity in deeper brain centers that respond to rewards.
A meta-analysis of studies found that women working shifts experience a higher rate of menstrual disruption (33% increase) and subfertility (80% increase), while night shift work only increases the risk of miscarriage. The study suggests that altering circadian rhythms can lead to short- and long-term biological disturbances.
Researchers found that patients at low risk of clinical deterioration can safely forgo overnight vital sign monitoring without negative effects. The study suggests tailoring vital sign collection based on patient risk to improve patient experience and safety in hospitals.
Researchers found that sleep deprivation triggers excessive anticipatory anxiety by activating the amygdala and insular cortex. Innate worriers are more vulnerable to this impact, suggesting that sleep therapy could be a potential treatment for anxiety disorders.
Researchers found that two proteins affect responses to wakefulness and sleep deprivation. The study suggests that assessing quality of wakefulness before bedtime could lead to new ways of treating sleep disorders.
A new study found that one night of sleep deprivation increases men's perceptions of both women's interest in and intent to have sex. Sleep-deprived men rated women as having higher sexual intent and interest than well-rested men, reversing the initial perception gap.
Scientists have identified a human gene, ITGA5, that becomes more active after sleep deprivation, offering a potential new marker for detecting sleep loss. The discovery was made through cross-translational research with fruit flies, which allowed the researchers to identify genes in humans and then test them in flies.
Researchers found that partial sleep deprivation led to less healthy vascular function and impaired breathing control. After a short period of normal sleep, vascular function returned to baseline, suggesting an adaptive response. The study suggests a mechanism behind the connection between sleep loss and cardiovascular disease.
Researchers at WSU will study the effects of fatigue on attention and decision-making to improve 24-hour operations and safety. The study aims to develop an individualized fatigue prediction model and identify genetic markers that explain person-to-person differences in responding to fatigue.
Researchers found that participants with preclinical Alzheimer's disease had poorer sleep efficiency and spent less time asleep than those without markers of the disease. Early evidence suggests a possible connection between sleep loss and brain plaques, a hallmark of Alzheimer's disease.
Scientists have identified a molecular mechanism underlying sleep homeostasis in nematode worms, which may have implications for human health. The study found that loss of sleep led to the migration of a stress-related protein into the nucleus, activating stress genes and triggering a behavioral response.