View clinical trials related to Sleep.
Filter by:A randomized, double-blind, placebo-controlled, cross-over pilot study to investigate the efficacy of Rest-ZZZ in healthy participants with difficulty falling asleep or staying a sleep. The study will have 3 study periods. During each study period, eligible participants will consume either Rest-ZZZ, comparator product, or placebo for 7 days during each study period (1 product per study period), with a 1-week washout period in between each period. The primary objective is the comparison in sleep quality using a sleep quality questionnaire from pre-supplement to Day 7 between the Rest-ZZZ, comparator, and placebo. Other study outcomes include the change in quality of life, profile of mood states (POMS), and safety outcomes such as vital signs, clinical chemistry and hematological markers
In Portugal, 17.3% of children under 10 years old are overweight and 7.7% are obese. Research has shown the implementation of healthy lifestyle promotion programs and obesity prevention, however "best practices" are far from being defined. Also, the first five years of life are important for the executive functions development, namely memory, inhibition (including self-regulation) and flexibility, which includes creative thinking, thinking "outside of the box", important in problem solving. The importance of social and emotional dimensions, as well as physical health for the development of cognitive health is consensual, as sleep deprivation, low physical activity, unhealthy food may inhibit the proper development of executive functions. This project aims to evaluate the effectiveness of a healthy lifestyle promotion program on emotional, social and cognitive development and eating habits, sleep and physical activity in children between 12 and 42 months of age. A cluster randomised trial will be developed and 300 children, from 16 childcare centres will be invited to participate. Half of the childcare centres will be allocated to the control group and the other half to the intervention group. Data collection will occur before randomisation (at baseline) and after intervention. A feasibility study will be undertaken prior to the experimental study, in accordance with internationally accepted procedures. The investigators intend to implement the concept that the development of executive functions requires the combination of healthy eating, physical activity and sleep. The project will contribute with evidence-based to the cognitive, social and emotional development in children.
The aim of this study is to assess the impact of 5-hydroxytryptophan (5-HTP) supplementation on sleep quality and gut microbiome composition in older adults with normal cognition vs. mild cognitive impairment (MCI) using a randomized controlled trial.
Overweight/obesity and inadequate sleep are prevalent, and frequently co-occurring, health risks among children, both of which are associated with serious medical and psychosocial health complications including risk for cardiovascular disease. Although the investigator's data suggest that disrupted or shortened sleep may be causally associated with increased energy intake and weight gain in children, and with self-regulation and neural response to food cues in adults, understanding of mechanisms involved in the sleep/eating association is incomplete, thereby impeding development of targeted, optimally timed intervention strategies. The proposed mechanistic clinical trial aims to assess the effects of an experimental sleep manipulation on eating-related self-regulation and its neural substrates, and on real-world eating behavior, among children with overweight/obesity, which will help guide research efforts towards the refinement of prevention and intervention strategies targeting sleep and its eating-related correlates to curb weight gain throughout development.
Investigators will enroll up to 20 participants from 3 Children's Hospital of Philadelphia (CHOP) primary care locations. The primary objective is to determine the whether the Sleep Well! behavioral sleep intervention is feasible to be implemented in primary care offices and acceptable to families. The direction and magnitude of change in child sleep from pre-intervention to post-intervention will also be examined.
The aim of this study is to examine the neurobehavioural responses to two successive cycles of sleep manipulation nights and recovery nights in adolescents, and to determine the benefits of napping on cognitive performance, alertness and mood. Using a split-sleep design, 60 participants, aged 15 to 19 years old, are divided into a nap and a no-nap group. Both groups undergo two cycles of sleep manipulation nights and recovery nights over a period of 15 days. The no-nap group receives an 8-hour sleep opportunity on sleep restriction nights, with no daytime nap opportunity. The nap group receives a 6.5-hour sleep opportunity on sleep restriction nights, and has a 1.5-hour nap opportunity the following afternoon.
Alterations in sleep and the sleep / wake cycle, which are particularly common in Alzheimer's disease patients, could represent an early biomarker for cognitive decline and onset of dementia . Moreover, these disturbances in activity rhythms and sleep patterns represent modifiable factors and therefore potential targets for the prevention of certain neurodegenerative disorders. The main objective of this study will be to test the hypothesis that elderly people without major cognitive impairment who have circadian rhythm disorders of the sleep / wake cycle have structural and / or functional abnormalities in the central nervous system and more specifically of the hippocampal function which could represent a risk factor for the occurrence of cognitive impairment. Indeed, although many studies in both humans and animals suggest the existence of links between sleep alterations and age-related cognitive impairment, the causality of these observations is still not clear. This description of the anatomical and functional substratum of sleep / wake cycle alterations occurring in an elderly population will be based on joint analysis of multimodal brain imaging (MRI) and neuropsychology actimetry data. The SoRyMA-AMImage 3 protocol will correspond to the 2nd actimetry measurement point and the 3rd MRI measurement point of a larger population-based cohort AMImage. This project will collect data from the sleep / wake cycle (actimetry) from a sample of 100 patients included in AMI / AMImage 2 and relate them to brain imaging data (MRI). The main objective of the protocol is the evaluation of the link between changes in sleep and cycle parameters during aging and hippocampal functioning (through fMRI and neuropsychological score of hippocampal dependant tasks). The actimetry variables measured at the two follow-up (4 years apart) will make it possible to measure the degradation of the sleep and cycle parameters (through the reduction of sleep duration, sleep time, increase in sleep fragmentation and decrease in the relative amplitude of the rhythm). This framework will provide access to a very large amount of data that can be cross-referenced with actimetry data; the longitudinal character of this data collected over a decade will also make it possible to work on the evolution of the actimetry parameters and its relationship with the cognitive and clinical evolution of the subjects. Thus, these data will make it possible to study the prognostic value of the analyzed actimetry parameters in association with very complete clinical and neuropsychological data.
The purpose of this study is to evaluate whether undergraduate students completing a course focused entirely on sleep at a major urban university evidence positive changes in their sleep patterns compared to students completing a similar-level course (without any discussion of sleep) in the same department (Psychology) at the same university (UH). Potential changes in sleep patterns across the semester will be examined as well as whether putative changes in sleep can be linked with academic and mental health outcomes.
Presented as an online survey, this study seeks to better understand how Thorne customers are using and experiencing the new Hemp Oil + product and how they feel it compares in the marketplace. Hemp Oil + is a combination product with a proprietary blend of hemp, clove, black pepper, hops, and rosemary extracts. People who have independently elected to purchase and use Hemp Oil + before the study starts will be invited to voluntarily participate. If they meet study requirements and give consent they will answer questions online about their experience with Hemp Oil +. Questions address general demographics and wellness, general impressions of the product, how it compares to other products, and any effect it has had on their gastrointestinal health, physical discomfort, sleep, and mood. The survey is expected to take 15-30 min of participant time. Data will be analyzed to determine whether the customer experience with Hemp Oil + is as favorable as it seems from anecdotal reports. Analysis will also be conducted to find patterns that can inform future studies, marketing, and customer education efforts.
The goal of the proposed project is to identify the impact vagal activity during sleep for memory formation. Nearly 100 years of research contends that sleep plays a critical role in memory consolidation (i.e. the transformation of recent experiences into stable, long-term memories), yet much of this literature has focused on the central nervous system and technologies like electroencephalography (EEG) to unpack neural correlates involved in memory processing. Sleep is also a unique period of autonomic variation and an expansive literature has indicated the critical importance of the autonomic nervous system for memory formation. This project would be amongst the first to examine the autonomic nervous system during sleep as a critical, causal pathway linking sleep to memory processing. The investigators will assess the impact of non-invasive, transcutaneous vagal nerve stimulation on sleep and post-sleep memory performance. Autonomic physiology, including electrocardiography and impedance cardiography, will be gathered at baseline, before the memory task and continuously during sleep to examine vagal tone (i.e. heart rate variability) and sympathetic activation (i.e. pre-ejection period) in response to both active and sham stimulation conditions. Polysomnography will also be gathered during the nap to examine sleep architecture. The proposed research will address a critical gap in the literature by: 1) examining the causal role of the ANS for memory functioning in humans, 2) extending the current understanding of sleep's impact on memory processing, and 3) set the groundwork for novel, sleep-based interventions with the goal of improving cognitive health.