Work

Associations Between Daytime Light Exposure and Mood, Vitality, Work Efficiency, and Sleep: A Field Study in Offices

Year: 2024

Type: conference-paper

Abstract: This field study investigates the associations between office employees’ daytime light exposure and their experiences and behavior across multiple days. The study recruited 15 participants in real office environments and lasted for three weeks. Light exposure was recorded using wearable light sensors, sleep data were collected via wristbands, and experiences were gathered through four questionnaires every in-office working day. The analysis revealed that higher average illuminance over the past half-hour was positively related to self-reported positive affect, vitality, and work efficiency. Illuminance above 250 lx significantly improved vitality and morning work efficiency. Additionally, longer time exposed to illuminance above 250 lx during the day also facilitated quicker sleep onset at night. This study provides empirical evidence of the positive effects of bright daytime light exposure on office employees’ performance and sleep.

DOI: 10.1109/ls2463127.2024.10881543

Authors: Yunyi Zeng, Karin C.H.J. Smolders, Yvonne A. W. De Kort, Juan Yu, Borong Lin

Institutions: Tsinghua University, Eindhoven University of Technology

Language: English

Topic: Circadian rhythm and melatonin

Subfield: Endocrine and Autonomic Systems

Field: Neuroscience

Domain: Life Sciences

SDGs: Decent work and economic growth, Good health and well-being

Open Access status: green

Funders: National Natural Science Foundation of China, Technische Universiteit Eindhoven

Award: G4368500684