Articles tagged with Sleep
Researchers analyzed health records of nearly half a million patients post-heart attack and found that depression was associated with a nearly 50% higher stroke risk compared to those without depression. The study highlights the need for greater attention to mental health in research and practice.
A recent study found that approximately 1 in 3 heart attack survivors experience significant mental decline in the days and months following their heart attack. Cognitive deficits can impact quality of life and treatment adherence, emphasizing the need for cardiologists to monitor patients regularly.
A study suggests that smartwatch heart rate measurement algorithms are less effective in people with darker skin tones due to increased melanin absorption. Researchers emphasize the need for diverse population inclusion and explore alternative light wavelengths for more accurate readings.
A new report has provided the first scientific consensus on healthy daily light exposure to support sleep, alertness, and well-being. The recommendations aim to optimize lighting in workplaces, public buildings, and homes to promote healthier body rhythms and improve overall health.
A new study found that longer, more frequent daytime napping in older adults predicted worse cognitive performance and an increased future risk of Alzheimer's dementia. The researchers discovered a bi-directional link between the two, where excessive daytime napping sped up the increase in daytime napping during aging.
Research at Simon Fraser University found that sharks produce a lower metabolic rate and recumbent body posture when inactive for longer periods, supporting the idea that they sleep to conserve energy. This is the first physiological evidence of sleep among elasmobranchs, a fish group including sharks, rays, and skates.
Researchers at UC San Francisco have identified five genes that enable efficient sleep, contrasting with current thinking that lack of sleep accelerates neurodegeneration. These genes may confer protections against neurological disease and improve sleep quality, paving the way for new treatments.
The American College of Chest Physicians journal features cutting-edge original research on various chest medicine topics, including asthma, COPD, critical care, and sleep. The March issue includes a special series on nontuberculous mycobacterial pulmonary disease, offering insights into clinical epidemiology, risk factors, and diagnosis.
A new study from Northwestern University finds that even moderate light exposure during sleep harms cardiovascular function and increases insulin resistance. Closing blinds and using dim lighting before bed can help mitigate these effects.
Researchers studied draughtsboard sharks and found they sleep with eyes open, a trait shared by humans and other animals. Sleep in sharks is linked to lying flat and reduced metabolic rate, aiding energy conservation.
Researchers found that stress, anxiety, and worries about health consequences contribute to sleep issues among essential occupation workers. The study suggests that implementing measures promoting health and well-being can prevent future illness and sick leave.
A study led by Kyoto University researchers found that modulating hormone levels can improve meibomian gland disorder, a common cause of dry eyes. Topical administration of nicotinamide mononucleotide (NMN) boosted NAD levels and rebooted 3-HSD activity in mutant mice, alleviating dryness.
A study found that resistance exercise improved sleep duration and efficiency, while aerobic exercise had limited effects. The findings suggest that incorporating resistance training into one's routine may help promote better sleep and improve overall cardiovascular health.
A study on wild baboons reveals that they prioritize socializing and safety over sleep, even after poor sleep quality. The research used non-invasive technology to monitor sleep patterns across a group of individuals, showing that animals in the wild face competing demands that disrupt sleep homeostasis.
The SynGAP Research Fund has developed a pre-screening tool to identify potential SYNGAP1 patients through a free online survey. The partnership with Probably Genetic aims to screen undiagnosed patients and provide them with genetic testing resources, ultimately advancing treatment development for SYNGAP1.
A study by researchers from the University of Tsukuba found that taking a 15-minute walk outside on a hot summer day can impair cognitive performance. This effect was more pronounced in men who slept less than 5 hours, suggesting that heat stress may negatively impact learning and productivity.
Researchers at the University of Tsukuba investigated the effect of sevoflurane on sleep disturbance caused by systemic inflammation. Sevoflurane preconditioning promoted significant increases in REM sleep after LPS injection, while postconditioning had no effect.
A randomized, double-blind study found suvorexant to be effective in reducing insomnia severity and night sweats in peri- and postmenopausal women. The medication showed promise as a treatment for chronic insomnia in midlife women.
Researchers found that the master clock and slave clock operate via distinct molecular mechanisms, allowing for robustness and flexibility in regulating bodily rhythms. The master clock's ability to adapt to environmental changes enables quick adjustment to new time zones after international flights.
Researchers from Washington State University found that the optimal time of day for different cognitive tasks does not differ based on task type. Participants who felt sleepy should consider postponing important tasks until a later time to avoid performance impairment.
Researchers found a significant increase in overdose deaths involving gabapentinoids and z-drugs between 2000 and 2018. The proportion of deaths increased by more than three-fold, coinciding with exponential prescription increases. Co-usage with opioids was common, with over 67% of overdose victims having both substances in their system.
Research at Rensselaer Polytechnic Institute found that the circadian system influences the immune cells' clearance of Amyloid-Beta 42, a key protein linked to Alzheimer's disease. Boosting daily oscillations could increase clearance and prevent brain damage.
A new study finds that immune cells clear away a key Alzheimer's disease protein on an oscillating daily cycle controlled by circadian rhythms. The discovery provides a potential mechanism linking Alzheimer's disease to disruptions in sleep cycles and may lead to the development of chronotherapeutics.
Researchers found no clinical improvements in very elderly patients with CPAP therapy for moderate-to-severe sleep apnea. The study suggests that CPAP treatment is less effective in patients older than 80 due to a more sedentary lifestyle and other underlying disorders, limiting its long-term adherence.
A new poll found that less than half of people aged 50-80 have ever used a health-related app, with those in poor health and lower incomes being even less likely. Only 28% of current users share information with healthcare providers, highlighting the potential for apps to support health behaviors and improve outcomes.
A new study published in Scientific Reports found that combining aspects of poor sleep health increases the risk of heart disease. Researchers analyzed data from 6,820 U.S. adults and found a strong association between sleep health problems and heart disease risk, with Black participants showing higher rates of both.
Research shows that couples who took Family Foundations classes 10 years ago had more positive family relationships during the pandemic. They reported lower levels of negative mood, behavior problems, and sibling conflict in their children.
A recent study by Oregon State University found that night shift nurses are more likely to suffer from poor sleep, PTSD, depression, anxiety, and inflammation. The researchers also discovered a significant disparity in sleep quality among Black nurses, highlighting the impact of systemic racism on their health.
A study analyzed Reddit posts to identify common parenting concerns, including sleep, eating, and emotional difficulties. The authors used latent Dirichlet allocation to categorize the posts and found that these topics are consistently discussed among parents.
Researchers discovered increased activity in the hippocampus during anesthesia and sleep, preceding Alzheimer's symptoms by years. This abnormality may enable early diagnosis and treatment of the disease.
Researchers developed a novel scheme that reduces energy consumption while improving traffic prediction accuracy by up to 40% compared to benchmark schemes. The scheme uses software defined network and edge computing to control the operation of base stations, ensuring both sustainability and performance.
Researchers developed a software-based smoke dispersal simulation model to study prehistoric archaeology. They found that early humans placed their hearth at the optimal location in the cave, enabling maximum utilization of fire while minimizing smoke exposure. The study identified a 25sqm area as ideal for locating the hearth.
A recent study found that more than half of nurses experienced difficulty sleeping during the first six months of the COVID-19 pandemic, with reduced sleep increasing odds of anxiety and depression. The researchers urge employers to address work stress and provide support for mental healthcare.
A new study found that curtailed sleep increases the release of troponin after exercise, a biomarker linked to cardiovascular disease. While regular exercise counters adverse effects of sleep loss on metabolism, curtailed sleep may increase the risk of heart injury during strenuous exercise.
Research found that preschoolers' melatonin levels are suppressed by even dim light before bedtime, with suppression rates ranging from 70% to 99%.
A randomized controlled trial found that late eating, associated with high melatonin levels, impairs blood sugar control through a defect in insulin secretion. Participants with the genetic variant in the MTNR1B gene had higher blood sugar levels, highlighting the importance of considering genetics in food timing recommendations.
A longitudinal survey of over 3,000 adolescents aged 11-14 found that supportive relationships with family and friends, physical activity, and better sleep helped shield against the pandemic's negative impact on mental health. Girls were more likely than boys to experience psychological distress during the pandemic.
Researchers found that prenatal exposure to nicotine and its by-products produces long-term effects on sleep and stress-response in mice. This early-life exposure can lead to alterations in the hippocampus, a sensitive structure that develops after birth.
A team of NTU Singapore scientists has developed a predictive computer programme using wearable technology data to detect depression risk. The programme, Ycogni model, achieves an accuracy of 80% in detecting individuals at high or low risk of depression.
Researchers have created a compact and affordable device for recording brain activity, offering research-grade signal quality and customizable configuration. The device has the potential to help people with epilepsy detect impending seizures and those with limited mobility regain control over their limbs.
A study found that sleep and biological rhythm variables are associated with depressive and anxiety symptoms in women during the peripartum period. Changes in circadian quotient, nighttime activity, and rest fragmentation were linked to higher depressive and anxiety symptoms.
A new study published in JNeurosci found that the brain selectively responds to unfamiliar voices during sleep, even when familiar voices are present. This ability allows the brain to strike a balance between resting and being responsive to its environment.
New research by Northwestern University found that reactivating memories during sleep significantly improves face-name learning. The study also discovered that uninterrupted deep sleep is crucial for this improvement.
Research found that teens in short sleep consumed more foods high in carbs and added sugar, leading to weight gain and cardiometabolic diseases. Teens got 12 extra grams of sugar each day, resulting in over 4.5 pounds of extra sugar each year.
Adolescents experienced improved health-related quality of life during school closures, with increased sleep duration by about 75 minutes per day. This positive effect outweighs the negative impacts of depression and anxiety.
A new study by National Jewish Health finds that adjusting school start times can benefit parents' sleep, particularly those with children in middle and high school. Parents reported improved sleep duration and reduced daytime fatigue after the start time adjustments.
Researchers found that EEG arousal intensity varies by respiratory event type and severity in OSA, affecting sleep disruption. The study reveals distinct patterns of gamma power during arousals from different types of respiratory events, such as obstructive apnoeas and hypopnoeas with varying degrees of blood oxygen desaturation.
A new study by ISGlobal found no association between overall mobile device exposure and sleep disturbances in pre-adolescents, but suggested an effect on sleep when exposure occurs in the evening. The study of over 1,500 children aged 9-12 years old found that those making phone calls in the evening had reduced sleep time.
Researchers at the University of Missouri are using a $2 million grant to install in-home sensors that monitor older adults' daily activities. The sensors can detect falls, track vital signs, and alert care teams to abnormalities, enabling timely interventions.
A digital version of cognitive behavioral therapy (dCBT) has been shown to reduce insomnia, depression, and anxiety during pregnancy. The treatment also reduced symptoms of insomnia and depression in non-depressed women for up to six months postpartum.
Researchers at the University of Eastern Finland have developed simpler measurement technologies for diagnosing sleep disorders, enabling more accurate analyses. The new methods use reusable sensors in home environments, reducing costs and increasing patient comfort.
A research group from Tohoku University discovered that melatonin, a sleep hormone, exacerbates asthma by potentiating bronchoconstriction. Melatonin weakens the relaxing effect of bronchodilators through the activation of the melatonin MT2 receptor.
Researchers at UT Southwestern Medical Center have developed a high-tech sleeping bag that may prevent vision problems caused by brain pressure in space. The study found that suctioning fluids from the body can unload brain pressure and prevent progressive flattening of the eyeball, swelling of the optic nerve, and vision impairment.
Researchers found a specific phase of sleep after falling asleep that triples the chances of finding creative solutions, making it a potential tool for stimulating creativity in everyday life. This discovery opens a new field of study on brain mechanisms of creativity and challenges the common view of sleep as a waste of time.
A study by Brigham and Women's Hospital found that eating during the nighttime can lead to glucose intolerance due to a misalignment between central and peripheral circadian clocks. In contrast, limiting meals to the daytime maintains internal circadian alignment and prevents glucose intolerance in shift workers.
A dental device to reduce snoring improves cognitive function in individuals with mild cognitive impairment. The maximum breathing rate during uninterrupted periods of sleep can differentiate healthy individuals from those with Alzheimer's or mild cognitive impairment. Improved sleep may slow the onset of Alzheimer’s disease.
A study from Boston Children's Hospital found that inadequate sleep can jeopardize brain organization in early adolescence, leading to deficits in cognitive processes such as attention, reward, and memory. The research identified racial disparities in the impact of sleep on brain networks, with non-white participants experiencing dispr...
Research found that people who rated their sleep as poor also felt older and had a more negative perception of their ageing. This study suggests that addressing sleep difficulties could promote a better perception of ageing and have other health benefits.
Researchers discovered a mechanism of sleep in zebrafish and mice, linking PARP1 protein to signaling the brain for sleep. Six hours of sleep per night is sufficient to reduce DNA damage, highlighting the importance of adequate sleep for efficient DNA repair.
Researchers developed a technology that accurately detects lies by analyzing facial muscle contractions, achieving a success rate of 73%. The study identified two distinct groups of 'liars' based on cheek muscle and eyebrow activation, with potential implications for real-life deception detection.