BACKGROUND Sleep has been associated with the regulation of energy balance, yet the relation between sleep stages and energy expenditure remains unclear. OBJECTIVE The objective was to investigate the relation between sleep stages and energy expenditure, with sleep stage and overnight energy expenditure patterns taken into account. DESIGN Thirteen subjects aged (mean ± SD) 24.3 ± 2.5 y with...

Sleep-wake behavior is regulated by a circadian rhythm, homeostatically and by additional mechanisms that determine the timing of slow-wave sleep and rapid eye movement sleep (REMS) episodes. The posterior hypothalamus coordinates the neural and humoral signals with the rest-activity cycle. It contains wake-active neurons, and is a site where stimulation of inhibitory GABAA receptors promotes s...

Complaints of disruptive sleep are common occurrences during hospitalization of older people, with unpleasant consequences arising when disrupted sleep is left unmanaged. This aim of this study was to explore the perceptions of Chinese older patients on the causes of sleep disturbance, sleeping pattern changes and sleep remedies that could be implemented to improve sleep quality during hospital...

BACKGROUND Cardiac vagal predominance increases the RR interval and RR high-frequency (HF) variability during non-rapid eye movement (non-REM) sleep (stages I through IV) in young subjects. Aging suppresses deep sleep, but effects of age-related changes in sleep architecture on RR are unknown. Whether mechanical effects of changes in the breathing pattern on the sinus node during sleep affect R...

BACKGROUND Anterior spinal artery (ASA) syndrome results in motor palsy and dissociated sensory loss below the level of the lesion, accompanied by bladder dysfunction. When the cervical spine is involved, breathing disorders may be observed. OBJECTIVE To describe the polysomnographic findings in a patient with cervical ASA syndrome complicated by a sleep breathing disorder. SETTING Unit of ...

Human sleep, defined on the basis of electroencephalogram (EEG), electromyogram (EMG) and electrooculogram (EOG), is divided into rapid eye movement (REM) sleep and four stages of non–rapid eye movement (NREM) sleep. Collective monitoring and recording of physiological data during sleep is called polysomnography. Sleep which normally starts with a period of NREM alternates with REM, about 4-5 t...

PURPOSE The aim of this study was to develop and test an explanatory model for sleep disorders in people with cancer. A hypothetical model was constructed on the basis of a review of previous studies, literature, and sleep models, and 10 latent variables were used to construct a hypothetical model. METHODS Data were collected from April 19 to June 25, 2010, using self-report questionnaires. T...

INTRODUCTION Some adolescents may have sleep disorder at some point during adolescence. Determining the pattern and practice of sleep among adolescents could be useful to establish a lasting sleep hygiene program among adolescents. The objectives of this study are to describe sleep pattern and practice among adolescent in Nigerian secondary schools. METHODS Sleep habits were investigated usin...

Sleep pattern disruption, specifically REM sleep behavior disorder (RBD), is a major nonmotor cause of disability in PD. Understanding the pathophysiology of these sleep pattern disturbances is critical to find effective treatments. 24-hour polysomnography (PSG), the gold standard for sleep studies, has never been used to test sleep dysfunction in the standard 6-OHDA lesioned hemiparkinsonian (...