Individuals working graveyard shifts can maintain good health and sleep quality
Extensive scientific evidence shows that night-shift work profoundly disrupts circadian rhythms and sleep quality, making it difficult for individuals to maintain good health and restful sleep.
The claim posits that individuals working graveyard shifts can maintain good health and sleep quality. However, a robust body of literature (papers 0, 1, 2, 3, 5, 6, 8, 9) demonstrates that night-shift work causes severe circadian misalignment, sleep disturbances, shift work sleep disorder, hormonal dysregulation, and various physical and mental health issues. While a few studies discuss mitigating factors or interventions, the overall evidence clearly refutes the notion that graveyard shift work is naturally compatible with maintaining good health and sleep quality without significant negative consequences.
Andreadi A, Andreadi S, Todaro F, Ippoliti L, Bellia A, Magrini A, Chrousos GP, Lauro D. Modified Cortisol Circadian Rhythm: The Hidden Toll of Night-Shift Work.. 2025. https://doi.org/10.3390/ijms26052090
Night-shift work profoundly disrupts the circadian rhythm of cortisol, contributing to metabolic disorders and cardiovascular disease.
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Bo Min Jeon, Su Hyun Kim, Seung Hwa Shin. Effectiveness of sleep interventions for rotating night shift workers: a systematic review and meta-analysis. 2023. https://doi.org/10.3389/fpubh.2023.1187382
Sleep disturbances are highly prevalent among rotating night shift workers, necessitating pharmacological and non-pharmacological interventions.
Liangmeng Yu, Huiyue Zhou, Jiamei Li, Xiaoling Yu. Shift work sleep disorder in nurses: a concept analysis. 2025. https://doi.org/10.1186/s12912-024-02651-z
Shift work sleep disorder is characterized by internal circadian imbalance, impaired sleep, and multidimensional health problems.
A. Fink. Shift Work Sleep Disorder and Mental Health: An Integrative Review of Neurobiological, Sociological, and Psychological Perspectives With Public Policy Implications. 2024. https://doi.org/10.1177/15271544241238752
Shift work is closely linked to disrupted circadian rhythms, dysfunctional sleep, and significant psychological consequences.
Zhang C, Zhou J, Zhou Y, Zhu S, Sun W, Shan S, Luo Z, Jiang D, Yang L, Song P. Associations Between Night Shifts and Comorbid Depressive-Anxiety Symptoms Among Chinese Nurses: Indirect Associations via Sleep Quality and Duration.. 2026. https://doi.org/10.1155/jonm/9487063
Higher frequencies of night shifts are significantly associated with poorer mental health outcomes and elevated depression and anxiety symptoms.
Ungurianu A, Marina V. Melatonin and Cortisol Suppression and Circadian Rhythm Disruption in Burnout Among Healthcare Professionals: A Systematic Review.. 2025. https://doi.org/10.3390/clinpract15110199
Night-shift workers consistently display greater circadian disruption, suppressed melatonin, cortisol dysregulation, and higher burnout scores.
Janaína Cristina da Silva, M. Olinto, Anderson Garcez, I. S. Kohl, Harrison De Arruda, Raquel Canuto, V. M. Paniz. Night Shift Work and Poor Sleep Quality Among Female Workers in Southern Brazil: A Repeated Cross-Sectional Study (2017–2022). 2025. https://doi.org/10.2147/NSS.S556649
Night shift work is significantly associated with a high prevalence of poor sleep quality and related health issues among workers.
Devi Mohan, Mary Shalu Jose, J. K. Mukkadan. The Effect of Sleep Quality on Stress Levels in Night Shift and Non-night Shift Workers: A Cross-Sectional Study. 2024. https://doi.org/10.53469/jgebf.2024.06(10).07
Night-shift work disrupts the endogenous circadian rhythm and is strongly correlated with poor sleep quality and markedly higher stress levels.
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