Articles tagged with Sleep Deprivation
Research shows that parvalbumin-expressing neurons in the cerebral cortex activate when sleepiness increases, leading to rebound sleep. The activation of CaMKII protein causes rebound sleep by activating these neurons. This study sheds light on the molecular and neural mechanisms of sleep homeostasis.
Researchers have found that social memories lost due to sleep deprivation can be restored in mice using a drug used to treat asthma, while spatial memories can be reversed with a drug used to treat erectile dysfunction. These findings suggest potential for reversing human forgetfulness.
Research by UCLA Health confirms that Tai Chi reduces inflammation and improves anti-viral defenses in breast cancer survivors, while cognitive behavioral therapy shows greater increases in anti-viral gene transcripts. The study found significant reductions in inflammatory biomarkers among Tai Chi participants.
Two studies from University of Michigan reveal that sleep helps form and update memories, including spatial awareness. Sleep deprivation impairs memory by reducing neuron reactivation and replay, leading to long-term detrimental effects on memory consolidation.
A new study from Ohio State University found that virtual reality technology can accurately record shooting performance and track individuals' progress over time. The research team used the VirTra V-100 simulator to measure 21 relevant variables, including accuracy, decision-making, and reaction time.
Researchers from Mount Sinai presented three studies on obstructive sleep apnea (OSA) at SLEEP 2024, exploring its effects on thalamic activity, overnight memory performance, and symptom improvement with CPAP treatment. The findings suggest that OSA can impair cognitive function and that hypoxic burden may predict clinical improvement.
A new study published in Nature found that sleep weakens new brain connections forged during wakefulness only during the first half of a night's sleep. The researchers suggest that this 'reset' prepares the brain for learning and new connections the next day.
Researchers found that popular teens sleep less than their peers, with popular girls experiencing more insomnia symptoms. This study suggests that social context and emotional investment may contribute to sleep difficulties in popular teenagers.
The review found women report lower sleep quality, more fluctuations, and higher likelihoods of developing restless legs syndrome and sleep-related eating disorder. Women's brains respond differently to food images after sleep deprivation, with increased emotional processing and activation.
A systematic review and meta-analysis found that sleeping less than seven hours a day increases the risk of developing high blood pressure, with females facing a greater risk. The study pooled data from 16 studies and found that short sleep duration was significantly associated with a higher risk of hypertension.
Women experience disruptions in sleep patterns and heightened feelings of anger before their period, with reduced sleep efficiency and increased emotional distress. The study highlights the importance of considering hormonal fluctuations when addressing sleep disorders and emotional distress in women.
A new biomarker developed by researchers at Monash University and the University of Birmingham can accurately detect when someone has not slept for 24 hours. The test has a 99.2% probability of being correct and could inform future tests to identify sleep-deprived drivers, reducing the risk of accidents and fatalities.
A new study examined three decades of malpractice claims and found that medical incident severity and payment decisions were higher during daylight saving time compared to standard time. The results suggest that the spring transition to daylight saving time has a significant impact on healthcare outcomes and costs.
A new study from Uppsala University found that adults who sleep only three to five hours a day are at higher risk of developing type 2 diabetes. Chronic sleep deprivation cannot be compensated by healthy eating alone.
The ICNIRP panel states that research on SWL exposure is inconsistent, with some studies indicating possible effects on alertness or sleep and others not supporting such effects. The panel also notes that potential long-term adverse effects of SWL exposure are unclear, particularly regarding its impact on chronic diseases and conditions.
Researchers found that certain Google searches occurred up to an hour earlier after DST switch and later after standard time return. This suggests a strong connection between the internal body clock and sleep/health-related search terms.
A study synthesizing over 50 years of research found that even mild sleep deprivation causes measurable negative changes in how people react to everyday events. Sleep loss results in fewer positive emotions, increased anxiety symptoms, and blunted arousal in response to emotional stimuli.
A comprehensive review of 50+ years of research on sleep deprivation and mood found that disrupted sleep leads to fewer positive emotions and increased anxiety symptoms. The study's findings suggest that even short periods of sleep loss can negatively impact emotional functioning.
Stress activates neurons in the preoptic hypothalamus during non-rapid eye movement sleep, causing microarousals that interrupt sleep cycles. Suppressing these neurons may be a promising target for therapies to treat stress-related sleep disorders like insomnia and PTSD.
Research by Hungarian researchers found that flat-faced dogs, like French Bulldogs, sleep more due to increased daytime sleepiness and longer REM sleep phases. Their EEG patterns showed signs of white matter loss and distorted brain function.
A new study published in Frontiers found that working night shifts is associated with a higher occurrence of disordered sleep, particularly among young adults with lower education. The study revealed that 51% of people working nights scored positive for at least one sleep disorder.
Repeated, chronic jet lag negatively impacts student-athlete health and performance in academics and sports. Strategies to reduce consequences include preadaptation before travel and sufficient time for circadian adjustment after arrival.
A study from the University of Ottawa found that sleep deprivation significantly impacts decision-making processes, reducing neural responses to winning and losing outcomes. This can lead to diminished positive emotions in response to winning and negative emotions when faced with losses.
A study by the University of Portsmouth reveals that moderate-intensity exercise improves cognitive performance in people who are sleep-deprived and have low oxygen levels. The research found that even when participants were exposed to hypoxia, exercise continued to enhance their ability to perform mental tasks.
A team of researchers from Kyoto University found that the pituitary vasopressin system is crucial for building a robust circadian clock in the suprachiasmatic nucleus. This discovery has led to the development of potential treatments for jet lag, which currently target only the suprachiasmatic nucleus.
A new study found that curtailing sleep by 90 minutes for six weeks increased insulin resistance in women, particularly postmenopausal women. Insulin resistance was also linked to an increased risk of developing type 2 diabetes.
Scientists at University of Leicester investigate sleep's impact on ageing epigenetics using jewel wasp model, finding potential reversible effects on DNA methylation. This study aims to understand the molecular basis of sleep-regulated ageing and its potential for therapeutic intervention.
Acute sleep loss in mice increases dopamine release and enhances synaptic plasticity, leading to a rapid reversal of depression for several days. The prefrontal cortex plays a crucial role in this process, with neurons forming tiny protrusions that change in response to brain activity.
A new study suggests that combining therapeutic touch and music can significantly improve sleep quality, reduce menopause symptoms, and enhance overall quality of life in women undergoing menopause. The study involved over 100 menopausal women who experienced significant improvements after four weeks of treatment.
A study published in Nature Communications found that sleep disruption leads to heightened pain sensitivity by affecting a brain region and neurotransmitter. Administering a specific chemical messenger, N-arachidonoyl dopamine, reduced this pain sensitivity, suggesting its potential as a treatment.
A recent study discovered two subgroups of people with idiopathic generalized epilepsy, one experiencing highest incidence during sleep and the other during daytime. The researchers found that either dynamics of cortisol or sleep stage transition explained most of the observed distributions of epileptiform discharges.
A new study found that even a mild chronic sleep deficit can lead to inflamed and dysfunctional vascular cells, increasing the risk of cardiovascular disease. Shortened sleep duration for six weeks caused oxidative stress in these cells.
A new study analyzing English primary care records found that hypertension, obesity, diabetes, and low HDL cholesterol confer a higher risk of dementia in South Asian and Black people compared to White individuals. The results suggest tailored dementia prevention efforts should be targeted towards minority ethnic groups.
Researchers at Imperial College London found that specific brain cells in the prefrontal cortex trigger mice to prepare for bed when tired, a behavior likely shared with humans. This hard-wired survival feature suggests that humans should prioritize sleep hygiene to maintain good health.
Researchers found that a two-nap schedule of 90-minute and 30-minute naps can help counteract drowsiness and fatigue during long night shifts. This strategy may also be beneficial for new parents experiencing sleep deprivation.
Researchers identified a protective protein whose level declines with sleep deprivation, leading to neuronal death. PTN levels could serve as an indicator of cognitive impairment resulting from insomnia.
A new study from the University of Georgia found that improved sleep can significantly reduce impulsive behaviors in children exposed to stressful environments. The study, which analyzed data from over 11,000 children aged 9-10, discovered that lack of sleep and long sleep latency were linked to increased impulsivity.
A new study analyzing over 220,000 people's sleep data shows that those in Asia have shorter sleep duration and lower quality, with more variable sleep timing on weekdays. In contrast, people in other regions tend to have longer weekend sleep extension, suggesting a cultural impact on sleep habits.
A new special issue of the Journal of Huntington’s Disease highlights the critical impact of sleep dysfunction on HD patients. Disrupted sleep can alter metabolism, increase vulnerability to infection, and exacerbate disease outcomes.
A recent study found that activating astrocytes in the basal forebrain can keep mice awake for hours without affecting their sleep need or intensity. The researchers hope to develop interventions targeting these cells to improve productivity and health of shift workers and others who work long hours.
A TENS machine has shown promise as a treatment for obstructive sleep apnoea, improving breathing and reducing daytime exhaustion in patients. The device is a cheaper and less invasive alternative to CPAP, which can be uncomfortable and lead to sleep deprivation.
The study found two distinct groups: low maternal sleep (5-6 hours/night) and average maternal sleep (7-8 hours/night). Children in the low maternal sleep group slept less. Establishing early bedtime routines and consistent sleep patterns improved sleep duration and reduced sleep problems.
A Surrey study finds that Daylight Saving Time decreases serious road accidents by 15-20% during the transition, primarily due to improved visibility. The research also suggests that leaving DST in Autumn increases minor road accidents, highlighting the importance of artificial lighting conditions.
Researchers from Mount Sinai Health System presented new findings on the impact of customized lighting on inpatient sleep, a machine-learned combination of ventilatory, hypoxic, and arousal burdens, and the effects of obstructive sleep apnea and insomnia on cognitive impairment. The studies aim to improve sleep timing and duration, dia...
A new study found that people exposed to moderate aircraft noise were less likely to get the minimum recommended sleep each night. The risk increased among those living near airports or large water bodies, as well as those with no hearing loss. Exposure levels as low as 45 dB were associated with short sleep duration.
A recent study has found that sleep is necessary for survival due to its role in regulating the body's homeostasis and preventing diseases. The research also shows that the brain disconnects from the environment during sleep, and that the gut plays a crucial role in this process.
A University of Ottawa study found that almost two-thirds of Canadians with stroke experience disturbed sleep, and those affected are up to 7 times more likely to report multiple sleep problems. The study highlights the need for better awareness and guidance on managing sleep disorders in stroke patients.
A meta-analysis of seven studies found that sleeping less than six hours per night reduces the immune response to vaccination. The deficit was equivalent to two months of antibody waning. This suggests that getting good sleep may also extend the duration of protection provided by vaccines.
A new study found significant links between sleep disturbances and the risk for developing dementia over a 10-year period. Sleep-maintenance insomnia was associated with a lower risk of dementia, while sleep-initiation insomnia and sleep medication use were linked to an increased risk.
Researchers have discovered a human-approved medication that can bring back 'lost' memories in mice, suggesting a potential new approach to treating age-induced memory problems or early-stage Alzheimer's disease. The study used optogenetic approaches and the asthma drug roflumilast to revive memories stored in the hippocampus.
Shift workers are at increased risk of severe COVID-19 compared to day workers due to sleep deprivation's negative impact on the immune system. Those who worked face-to-face with others had a higher risk of infection, but not more severe outcomes.
Small cell clusters in hippocampus are vital for fear-based memories, while sleep helps stabilize these clusters to improve memory. The study uses immediate early gene imaging to visualize active cells throughout the entire rat hippocampus.
Recent studies have shed light on the biological mechanisms that connect sleep and anxiety, highlighting the importance of sleep in regulating stress responses. Research has shown that inadequate sleep can lead to increased anxiety and stress, while also exacerbating mental distress.
Researchers at UQ's Queensland Brain Institute found a causal relationship between lack of oxygen to the brain during sleep and Alzheimer's disease in mice. CPAP treatment for obstructive sleep apnea may prevent cognitive impairment and neuron death, reducing dementia risk.
A new study from the University of Ottawa reveals that morning types tend to have superior verbal ability, contrary to previous research suggesting that evening types have an advantage. The study found that accounting for factors like bedtime and age, morning individuals outperformed their evening counterparts in verbal intelligence.
A large UK Biobank study found that poor quality sleep, including insomnia, short/long sleep duration, snoring, and daytime sleepiness, is associated with a heightened risk of developing glaucoma. The study suggests that targeted screening of high-risk groups and sleep intervention may help prevent the disease.
The Sleep Research Society advocates for the elimination of daylight saving time and adoption of permanent standard time due to its association with acute sleep loss and chronic circadian misalignment. This can lead to stress, altered metabolism, and inflammation, ultimately resulting in adverse health consequences.
A study by researchers at the University of Notre Dame found that 57 percent of participants were habitual snoozers, with females being 50 percent more likely to snooze than males. Snoozing may be a way for some people to battle exhaustion, as only 1 in 3 Americans get enough sleep.
Researchers studying fruit flies found that brain neurons adapt to help the flies stay awake despite tiredness in dangerous situations, and fall asleep after an intense day. Time-restricted feeding also improved sleep quality in the flies, suggesting a potential therapeutic approach for humans.
A two-week intervention targeting the circadian system helped shift teens' bedtime by an hour and a half earlier, increasing total sleep time by approximately an hour. The study also found improved concentration, reduced irritability, and better morning alertness in participants.