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Cited by 58Sleep and Wakefulness ResearchSleep and Work-Related FatigueSleep and related disorders

Meal Composition and Its Effect on Postprandial Sleepiness

Orr, William C, Shadid, Gregory, Harnish, Michael J, Elsenbruch, Sigrid·1997·Physiology & Behavior
DOI 10.1016/s0031-9384(97)00012-7
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Abstract

Drowsiness is a commonly experienced phenomenon following food ingestion. The present two experiments were designed to assess separately the effects of a solid meal compared to a liquid meal and to an equal volume of water, and the effects of meal constituents (high-fat, high-carbohydrate, or mixed meal) on objective postprandial sleep latencies. Ten normal male subjects participated in each study. Both studies used identical protocols, differing only in the meals the subjects were fed. All subjects underwent a pre-meal baseline nap at 1600 hours. At 1700 hours, subjects consumed a test meal. Naps followed at 1730, 1800, 1900, and 2000 hours. Sleep onset latency was determined by standard polysomnographic measures. In both studies, a one-way repeated-measures ANOVA procedure revealed no significant difference in sleep latencies among the meal conditions for the nap at 1600 hours. However, for the postprandial naps at 1730, 1800, and 2000 hours, the solid meal demonstrated a significant decrease in postprandial sleep latency compared with an equivalent volume of water (control). No significant differences in sleep latency were found between the food constituents. Results indicate that in contrast to a liquid meal, a solid meal produces a decrease in sleep onset latency when compared to an equivalent volume of water. Further, it was demonstrated that meal constituents have no effect on postprandial sleepiness.

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Crossref · 10.1016/s0031-9384(97)00012-7

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  • Tissue-resident leukocytes like macrophages can directly sense neurotransmitters and neuropeptides released by local nerve endings.

    “Apart from lymphoid organs, tissue-resident leukocytes like macrophages can directly sense neurotransmitters and neuropeptides that are released by local nerve endings (414).”

    From The Sleep-Immune Crosstalk in Health and Disease (2019) · cites this paper as [414]

  • Numerous neurotransmitters and neuropeptides of efferent nerves can be recognized by matching receptors on immune cells, and leukocytes themselves can synthesize and release these neuronal messengers.

    “Numerous neurotransmitters and neuropeptides of efferent nerves (like catecholamines or neuropeptide Y) can be recognized by matching receptors on immune cells, and leukocytes themselves can synthesize and release these neuronal messengers (e.g., Refs. 190, 414, 436).”

    From The Sleep-Immune Crosstalk in Health and Disease (2019) · cites this paper as [414]

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Authors
Orr, W. C., Shadid, G., Harnish, M. J., & Elsenbruch, S.
Affiliations
INTEGRIS Baptist Medical Center (US)
Corresponding author
Orr, William C
ORCID
Elsenbruch, Sigrid
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
1997-10
Volume
62
Issue
4
Pages
709-712
ISSN
0031-9384 (ISSN-L)
DOI
10.1016/s0031-9384(97)00012-7
OpenAlex
W1966736456
Cited by
58
References
28
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 5 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 1 · 2014: 2 · 2013: 4 · 2012: 2
FWCI
0.45
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
Keywords
sleep latency, meal composition, solid meal, liquid meal, high-fat meal, high-carbohydrate meal
MeSH terms
Adolescent, Adult, Eating, Food, Formulated, Humans, Male, Sleep, Sleep Stages

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