Qian, Jingyi, Vujovic, Nina, Nguyen, Hoa, Rahman, Nishath, Heng, Su Wei, Amira, Stephen ORCID: 0000-0001-9523-6486, Scheer, Frank A. J. L. and Chellappa, Sarah L. ORCID: 0000-0002-6190-464X (2022). Daytime eating prevents mood vulnerability in night work. Proc. Natl. Acad. Sci. U. S. A., 119 (38). WASHINGTON: NATL ACAD SCIENCES. ISSN 1091-6490

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Abstract

Shift workers have a 25 to 40% higher risk of depression and anxiety partly due to a misalignment between the central circadian clock and daily environmental/behavioral cycles that may negatively affect mood and emotional well-being. Hence, evidencebased circadian interventions are required to prevent mood vulnerability in shift work settings. We used a stringently controlled 14-d circadian paradigm to assess mood vulnerability during simulated night work with either daytime and nighttime or daytimeonly eating as compared with simulated day work (baseline). Simulated night work with daytime and nighttime eating increased depression-like mood levels by 26.2% (p-value adjusted using False Discovery Rates, pFDR = 0.001; effect-size r = 0.78) and anxiety-like mood levels by 16.1% (pFDR = 0.001; effect-size r = 0.47) compared to baseline, whereas this did not occur with simulated night work in the daytime-only eating group. Importantly, a larger degree of internal circadian misalignment was robustly associated with more depression-like (r = 0.77; P = 0.001) and anxiety-like (r = 0.67; P = 0.002) mood levels during simulated night work. These findings offer a proof-ofconcept demonstration of an evidence-based meal timing intervention that may prevent mood vulnerability in shift work settings. Future studies are required to establish if changes in meal timing can prevent mood vulnerability in night workers.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Qian, JingyiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vujovic, NinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nguyen, HoaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rahman, NishathUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heng, Su WeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Amira, StephenUNSPECIFIEDorcid.org/0000-0001-9523-6486UNSPECIFIED
Scheer, Frank A. J. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chellappa, Sarah L.UNSPECIFIEDorcid.org/0000-0002-6190-464XUNSPECIFIED
URN: urn:nbn:de:hbz:38-675026
DOI: 10.1073/pnas.2206348119
Journal or Publication Title: Proc. Natl. Acad. Sci. U. S. A.
Volume: 119
Number: 38
Date: 2022
Publisher: NATL ACAD SCIENCES
Place of Publication: WASHINGTON
ISSN: 1091-6490
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/67502

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