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- W2016226918 abstract "Background: After studying the sleep of alcohol-dependent patients at the beginning and over the course of abstinence in earlier studies, our interest in the current study focused on the direct effect of 2 doses of alcohol [0.03 and 0.1% blood alcohol level (BAL)] on healthy sleep. This is the first polysomnographic study testing the impact of 2 doses of alcohol ingestion (thus reflecting “normal” social drinking and alcohol abuse) in a single-blind randomized design in healthy volunteers. The study evaluated a short-term acute drinking period for 3 and 2 days of withdrawal from alcohol not only for polysomnographic variables but also for subjective estimates of sleep quality. Methods: In a crossover design with a 1-week interval, healthy subjects received alcohol to raise their blood alcohol to either 0.03 or 0.1% BAL at bedtime for 3 consecutive nights after an alcohol-free baseline night. Objective (polysomnography) and subjective sleep (questionnaires) was recorded each night. During the following 2 days, alcohol was discontinued with simultaneous measurements of sleep to gauge withdrawal effects. Results: At a dose of alcohol leading to BAL of 0.03%, no clear effects could be detected. Following an evening BAL of 0.1%, a hypnotic-like effect (shortened sleep latency, reduced number of wake periods, decreased stage 1 sleep) occurred primarily during the first half of the night with signs of rebound effects being already present during the second half of the night (increased stage 1 sleep). At this dose, alcohol significantly increased slow-wave sleep (SWS) in the first half of the night and reduced REM density in the beginning of the night. After discontinuation of the higher alcohol dose, REM sleep amount increased. No significant withdrawal or rebound effects could be observed for parameters of sleep continuity during the 2 nights after discontinuation from alcohol at a BAL of 0.1%. Conclusions: Owing to the small sample size, the results of this study need to be interpreted with caution. Short-term moderate alcohol consumption (BAL 0.03%) did not significantly alter objective or subjective parameters of sleep. Higher doses of alcohol resulting in a BAL level of 0.10% immediately before going to bed mainly influenced sleep in the first half of the night, resembling the effects of a short-acting hypnotic drug, including a suppression of phasic aspects of REM sleep (REM density). Interestingly, analysis of the latter part of these nights indicated the immediate presence of withdrawal effects (increased light sleep). No statistically significant effects on sleep parameters were observable during the 2 nights of withdrawal from alcohol at the higher BAL. Interpreted carefully, our data indicate that negative effects on sleep occur already with short-term use of alcohol at doses of BAL of 0.10%, despite hypnotic-like effects during the first hours of sleep, especially during the latter part of the night." @default.
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- W2016226918 date "2006-09-01" @default.
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- W2016226918 title "Effects of Alcohol on Polysomnographically Recorded Sleep in Healthy Subjects" @default.
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- W2016226918 doi "https://doi.org/10.1111/j.1530-0277.2006.00184.x" @default.
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