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Effects of Caffeinated vs. Non-Caffeinated Alcoholic Beverage on Next-day Hangover Incidence and Severity, Perceived Sleep Quality, and Alertness
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Sep 13 2013
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Source: Addict Behav. 2013; 39(1).
[PDF-40.94 KB]
Details:
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Alternative Title:Addict Behav
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Personal Author:
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Description:Aims
Beliefs about the effects of mixing caffeine and alcohol on hangover or sleep may play a role in motivation to consume these mixtures; therefore, information is needed about actual effects. We investigated whether intoxication with caffeinated vs. non-caffeinated beer differentially affected perceived sleep quality, sleepiness, and hangover incidence and severity the next morning.
Methods
University students (89%) and recent graduate drinkers were randomized to receive: (1) beer with the equivalent of 69 mg caffeine/12 oz glass of regular beer (n = 28) or (2) beer without caffeine (n = 36), in sufficient quantity to attain a BrAC of 0.12 g%. After an 8-hour supervised sleep period, participants completed measures of hangover, sleep quality, sleep latency and time asleep, and sleepiness.
Results
While caffeinated beer improved perceived sleep quality, effect sizes were greater for morning alertness than for quality while sleeping, with no effect on sleep latency or total sleep time. No effects were seen on hangover incidence or severity.
Conclusions
Mixing caffeine and alcohol does not significantly impair amount of sleep or sleep latency, hangover, or sleepiness the morning after drinking to intoxication in this population.
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Pubmed ID:24090620
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Pubmed Central ID:PMC3864634
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Funding:
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Volume:39
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Issue:1
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