Sleep Deprivation

Sleep disorders in Parkinson's disease are present in 60-98% of patients and reduce their quality of life. To review the pathophysiology, diagnostic approach and management of the different sleep disorders. We describe the pathophysiology associated with neurodegeneration, due to symptoms (motor and nonmotor) and drug therapies. This article reviews insomnia, excessive daytime sleepiness, circadian sleep disorders and sleep apnea. Subjective or objective sleepiness assessment should routinely be performed by physicians looking after Parkinson's disease patients. Management is difficult and should be targeted to the specific sleep disorder and its likely cause.

Investigate the impact of sleep deprivation on the ability to recognize the intensity of human facial emotions. Randomized total sleep-deprivation or sleep-rested conditions, involving between-group and within-group repeated measures analysis. Experimental laboratory study. Thirty-seven healthy participants, (21 females) aged 18-25 y, were randomly assigned to the sleep control (SC: n = 17) or total sleep deprivation group (TSD: n = 20). Participants performed an emotional face recognition task, in which they evaluated 3 different affective face categories: Sad, Happy, and Angry, each ranging in a gradient from neutral to increasingly emotional. In the TSD group, the task was performed once under conditions of sleep deprivation, and twice under sleep-rested conditions following different durations of sleep recovery. In the SC group, the task was performed twice under sleep-rested conditions, controlling for repeatability. In the TSD group, when sleep-deprived, there was a marked and...

Sleep disturbance is a common and complex clinical problem, particularly in older adults. With advancing age, the normal sleep cycle begins to break down, resulting in a reduction in the deeper stages of sleep and an often-profound increase in the fragmentation of nighttime sleep by periods of intrusive wakefulness. Sleep disorders exacerbate these age-related changes, leading to reports of daytime fatigue, sleepiness, and impaired daily function. The resultant chronic sleep deprivation invariably leads to often-unsuccessful attempts by the patient to overcome the problem. Patients may stay in bed longer, take more naps during the day, or seek out agents that putatively restore normal sleep patterns. Paradoxically, these efforts often result in exacerbation of the sleep disturbance. This review delineates the common causes of disordered sleep in older persons. Further, it reviews effective diagnostic approaches and treatments for these conditions, including limitations of hypnotic m...

Deficits in daytime performance due to sleep loss are experienced universally and associated with a significant social, financial, and human cost. Microsleeps, sleep attacks, and lapses in cognition increase with sleep loss as a function of state instability. Sleep deprivation studies repeatedly show a variable (negative) impact on mood, cognitive performance, and motor function due to an increasing sleep propensity and destabilization of the wake state. Specific neurocognitive domains including executive attention, working memory, and divergent higher cognitive functions are particularly vulnerable to sleep loss. In humans, functional metabolic and neurophysiological studies demonstrate that neural systems involved in executive function (i.e., prefrontal cortex) are more susceptible to sleep deprivation in some individuals than others. Recent chronic partial sleep deprivation experiments, which more closely replicate sleep loss in society, demonstrate that profound neurocognitive d...

A persons' health subsequently depends upon the level of his body composition. Its consist percentage of fat, bone, water, and muscle. Many health consultants around the world agreed that there is a health danger if the level of fat is too high in the human body. Presently it is clear that the factors of body composition are wide and involve multiple interfaces of cultural, environmental, social and lifestyle factors. A high level of fat percentage associated with a threat for health problems for stance high blood pressure, high blood cholesterol, diabetes, and sleeping disorder. Numerous studies found that there is an effect of sleep on body composition. Sleep is a natural process that allows the body and brain to rest and recover. Irregular sleep patterns, inadequate sleep quality, and insufficient sleep play a significant role to determine the health status of individuals. Quality of Sleep is not only effective as an indicator of health but also a key component of quality of life [1]. American adults reported around 27.5% to 29, 1% short sleep duration [2]. Numerous studies have investigated the relationship between obesity and sleep. Sleep apnea has an estimated prevalence of 9% to 28% among females and 27% to 34% among males, 30 to 70 years of age [3]. Every person requires sleep; both genders experiences sleep differently throughout their lifetimes. They face different challenges to sleep. Females are more prone to insomnia, while males are more likely to suffer from a sleep disorder like sleep apnea and snoring. Galland BC et al., reported poor sleep quality by 56% of participants and were more common in girls (63.1%) than in boys (44.5%), and sleep hygiene was significantly worse in females [4]. The symptoms for insomnia prevalence increased in females from 3.4% to 12.2% and in males from 4.3% to 9.1% [5]. The studies on sleep and body composition in the Saudi region on adolescent found that there is an inverse relationship between poor sleep duration (less than seven hours per day) and obesity/ overweight [6,7]. Mahfouz MS et al., revealed that university female students have poor sleep quality (69.1%) as they slept a mean of 4.77 hours/night [8]. In particular, epidemiological studies had shown a contrary correlation between sleep duration and BMI [9]. Sleep medicine in Saudi Arabia emphasising that there are many demands for further sleep studies to discuss the issues on the prevalence of numerous sleep disorders amongst Saudi population related to lifestyle and body composition [10]. Although longitudinal research is needed to confirm study results, researchers observed a counter relationship between duration of sleep and risk towards obesity development in children. In addition, every 30 minutes of sleep disruption leads to a 3% decline in daytime activity. Overall, study results indicate that sufficient duration and quality of sleep are significant factors for childhood obesity prevention [11]. Researchers found significant prediction between sleep duration in overweight male and z-score of BMI, where the long duration of sleep was linked with risk for overweight and lower BMI. In both regression models calculated for female adolescents, the duration of sleep is not a predictor for the risk of overweight or BMI z-score, indicating a gender difference in BMI and duration of sleep [12]. Many types of research are necessary to estimate how sleep effects on body composition, Inadequate sleep may also increase the chances to eat more, particularly if time spent in an inactive way, like browsing the internet, playing video games, watching television, even taking unhealthy foods habits. Daily routine work at home that leads to reduced sleep and increased food intake. However, the latest evidence linking BMI with sleep for a different population. There is little evidence for body fat, but not for the total body water with sleep habits for male and female students. In the present study authors investigated about body composition (BMI, body fat, and body water) and sleep habits amongst male and female students which would be helpful in identifying the effect of sleep habits on the body composition and adopt the preventive strategies for obesity and abnormal sleep. ABSTRACT Introduction: Elevated body composition is associated with many health hazards and it is also strongly associated with sleep habits of individuals.