All light is not equal: blue wavelengths are the most potent portion of the visible electromagnetic spectrum for circadian regulation. Therefore, blocking blue light could create a form of physiologic darkness. Because the timing and quantity of light and darkness both affect sleep, evening use of amber lenses to block blue light might affect sleep quality. Mood is also affected by light and sl...

Although shift and break timing is known to affect the sleep of shiftworkers, this has not been demonstrated in Fly-in, Fly-out (FIFO) settings which, compared to residential based settings, may be favourable for sleep. This study investigated the sleep quantity and quality of shiftworkers working a FIFO operation comprising of shifts, and therefore breaks, across the 24-h day. The sleep of 24 ...

It is increasingly recognized that a variety of musculoskeletal disorders significantly influence sleep. In individuals with sleep dysfunction caused by hip pain (coxalgia somnia) from osteoarthritis, total arthroplasty has reliably improved and quality in most patients. nonarthritic, nondysplastic femoroacetabular impingement syndrome cam and/or pincer morphology labral tears, arthroscopy simi...

BACKGROUND Many cancer patients report poor sleep quality, despite having adequate time and opportunity for sleep. Satisfying sleep is dependent on a healthy circadian time structure and the circadian patterns among cancer patients are quite abnormal. Wrist actigraphy has been validated with concurrent polysomnography as a reliable tool to objectively measure many standard sleep parameters, as ...

RESEARCH DESIGN AND METHODS — We conducted a systematic search of publications using MEDLINE (1955–April 2009), EMBASE, and the Cochrane Library and manual searches without language restrictions. We included studies if they were prospective with follow-up 3 years and had an assessment of sleep disturbances at baseline and incidence of type 2 diabetes. We recorded several characteristics for eac...

Purpose: The present study analyzed the production on metabolic syndrome and sleep disorders in Brazil indexed scientific literature. Methods: Keywords such as “ Metabolic Syndrome”, “Cardiometabolic Risk Factors”, “Sleep Wake Disorders” were used to find relevant research papers PubMed Latin American Caribbean Literature Health Sciences – Virtual Library (LILACS - VHL). Additionally, a table w...

Background Overtraining syndrome (OTS) is a stress-related phenomenon experienced by elite-level and recreational athletes alike. Athletes are subjected to stressors from physical, psychological, and biochemical sources that may lead to OTS and significant decrements in mental and physical performance. OTS may be characterized by elevated perceived stress, reduced mood quality, increased tensio...

Prader-Willi syndrome (PWS) is a genetic disorder in which hypotonia is the predominant feature in infancy, whereas developmental delay, obesity and behavioral problems become more prominent during childhood and adolescence. Sleep problems occur frequently among individuals with PWS. Because of the development of obesity, craniofacial dysmorphism and muscular hypotonia, patients with PWS are at...

Caffeine is commonly consumed to help offset fatigue, however, it can have several negative effects on sleep quality and quantity. The aim of this study was to determine the relationship between caffeine consumption and sleep quality in adults using a newly validated caffeine food frequency questionnaire (C-FFQ). In this cross sectional study, 80 adults (M ± SD: 38.9 ± 19.3 years) attended the ...

PURPOSE/OBJECTIVES To evaluate the quality of evidence on sleep-wake disturbances in people with cancer as a basis for clinical decision making and to discuss implications of the evidence for oncology clinicians, educators, and researchers. DATA SOURCES Published, peer-reviewed articles. DATA SYNTHESIS Members of the 2001 Oncology Nursing Society (ONS) Advanced Practice Nurse Retreat Eviden...