Stahl M L, Orr W C, Bollinger C
Sleep. 1983;6(1):29-35. doi: 10.1093/sleep/6.1.29.
Fifteen normal volunteers were evaluated to assess the effect of a meal on sleep onset latency. The meal was administered in a counterbalanced design on 1 of 2 successive days. Subjects napped 20 min subsequent to the meal (or at the corresponding time on the no-meal day) and 1 h after the initiation of the first nap. Ten subjects completed the Stanford Sleepiness Scale (SSS) on arriving at the laboratory, and just prior to nap 1 and nap 2. Sleep onset latency after the meal was not significantly different from that obtained under the no-meal condition, but was significantly less on nap 1 as compared with nap 2 irrespective of day or meal. SSS did not reveal subjective differences in sleepiness between the initial estimate and the postmeal estimate. Only five subjects showed a decrease in sleep onset latency postprandially (1-11 min). Although group differences in postprandial sleepiness were not documented, the phenomenon was clearly exhibited by certain individuals. Thus, postprandial sleepiness is not an invariable consequence of meal ingestion; rather, it appears to be affected by numerous variables such as hunger, volume of the meal, and meal constituents.
对15名正常志愿者进行评估，以确定进餐对入睡潜伏期的影响。进餐采用平衡设计，在连续两天中的一天进行。受试者在进餐后20分钟（或在无进餐日的相应时间）以及第一次小睡开始后1小时进行小睡。10名受试者在到达实验室时、第一次小睡和第二次小睡前完成斯坦福嗜睡量表（SSS）。进餐后的入睡潜伏期与无进餐条件下获得的入睡潜伏期没有显著差异，但无论哪一天或是否进餐，第一次小睡时的入睡潜伏期都明显短于第二次小睡。SSS没有显示出初始评估和餐后评估之间在嗜睡方面的主观差异。只有5名受试者餐后入睡潜伏期缩短（1 - 11分钟）。虽然没有记录餐后嗜睡的群体差异，但某些个体明显表现出了这种现象。因此，餐后嗜睡并非进食的必然结果；相反，它似乎受许多变量影响，如饥饿程度、进餐量和食物成分。
