OBJECTIVES Cross-cultural sleep research is critical to deciphering whether modern sleep expression is the product of recent selective pressures, or an example of evolutionary mismatch to ancestral sleep ecology. We worked with the Hadza, an equatorial, hunter-gatherer community in Tanzania, to better understand ancestral sleep patterns and to test hypotheses related to sleep segmentation. ME...

Mammalian sleep varies widely, ranging from frequent napping in rodents to consolidated blocks in primates and unihemispheric sleep in cetaceans. In humans, rats, mice and cats, sleep patterns are orchestrated by homeostatic and circadian drives to the sleep-wake switch, but it is not known whether this system is ubiquitous among mammals. Here, changes of just two parameters in a recent quantit...

BACKGROUND Sleep is a vital and restorative human function. However, it has been reported that up to 50% of heart surgery patients experience sleep disturbance during hospitalization and after discharge. PURPOSE This study describes sleep patterns in adults over the recovery course after heart surgery and works to identify potential interventions. Researchers analyzed and synthesized studies ...

s: October 20, 2014 Page 1 of 32 ABSTRACTS LUMBAR SPINE PELVIC GIRDLES LUMBAR SPINE PELVIC GIRDLE

background: insufficient sleep is a significant public health issue with adverse medical consequences. sleep disturbances are common among university students and have an effect on this group’s overall health and functioning. the aim of this study was to investigate sleep habits and disorders in a population of university students across lebanon. methods: this was a cross-sectional study carrie...

The present paper reviews and critiques studies assessing the relation between sleep patterns, sleep quality, and school performance of adolescents attending middle school, high school, and/or college. The majority of studies relied on self-report, yet the researchers approached the question with different designs and measures. Specifically, studies looked at (1) sleep/wake patterns and usual g...

INTRODUCTION Biomedical devices allow investigators to collect long-term repeated measures data to study adaptation. We examined 26 d of actigraph sleep data and tested for individual differences in sleep patterns prior to, during, and after a transition of sleeping in garrison to sleeping in a field exercise setting. In addition, we examined whether the individual difference variable of partic...