Effects of alcohol on the sleep-stage structure of a nap in the afternoon.
The effects of the ingestion of 0.8 ml/kg alcohol on the sleep-stage structure of nap sleep were compared with those of a non-alcoholic drink in 8 young male subjects napping between 14.00 h and 15.00 h. During nights immediately preceding experimental sessions, time to bed and time in bed (hence, sleep duration) were controlled. While not affecting total nap sleep duration, alcohol significantly increased time in stage 4 sleep, primarily at the expense of time in stage 2.
Van
F
F
Department of Biological Sciences, Manchester Metropolitan University, UK.
O'Boyle
D J
DJ
Hume
K I
KI
D000328:Adult; D000428:Alcohol Drinking / Q000503:physiopathology*; D002940:Circadian Rhythm / Q000187:drug effects* / Q000502:physiology; D000431:Ethanol / Q000493:pharmacokinetics / Q000494:pharmacology*; D006801:Humans; D008297:Male; D017286:Polysomnography / Q000187:drug effects; D012894:Sleep Stages / Q000187:drug effects* / Q000502:physiology
D000431:Ethanol