Sleep has been shown to promote the generation of explicit knowledge as indicated by the gain of insight into previously unrecognized task regularities. Here, we explored whether this generation of explicit knowledge depends on pre-sleep implicit knowledge, and specified the differential roles of slow-wave sleep (SWS) vs. rapid eye movement (REM) sleep in this process. Implicit and explicit kno...

Blood pressure varies throughout the day, being highest on awakening in the morning and lowest during sleep. However, the sleep blood pressure predicts cardiovascular and cerebrovascular ischemic events better than the awake blood pressure, which predicts hemorrhagic strokes.1 Thus, the level of blood pressure interacts with the hormonal environment to determine the outcome. Similar observation...

The purpose of this study was to investigate whether nocturnal hypoxia causes daytime blood pressure (BP) elevation. We hypothesized that overnight exposure to hypoxia leads the next morning to elevation in BP that outlasts the hypoxia stimulus. We studied the effect on BP of two consecutive night exposures to hypobaric hypoxia in 10 healthy normotensive subjects. During the hypoxia nights, sub...

background: sound produced by the passing traffic contributes to noise pollution. noise pollution affects the residents of both city and suburban areas. the noise produced does not only disturb the community living nearby the main road during the day but becomes worse during the night. the purpose of the study is to perform noise level measurement and subjective evaluation on the noise produced...

Mothers in postpartum periods are forced to be awake at night in order to take care of their babies. It is important to investigate relationships between the sleep patterns of postpartum mothers and their babies' activities under conditions in daily life to determine effects on their health. In this study, changes in sleep parameters of young women from late pregnancy to the 6th postpartum week...

It is a well-known fact today that driver sleepiness is a contributory factor in crashes. Factors considered as sleepiness contributor are mostly related to time of the day, hours being awake and hours slept. Factors contributing to active and passive fatigue are mostly focusing on the level of cognitive load. Less is known what role external factors, e.g. type of road, sound/noise, vibrations ...