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Updated: May 20, 2026

Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
Published on: June 13, 2025
[Sleep/wake cycle, circadian disruption and the development of obesity]
1Department of Internal Medicine 1, Faculty of Medicine, Oita University.
Abstract:
It is increasingly recognized that obesity is an important health problem. The mechanisms that underlie obesity have not been fully elucidated, and effective therapeutic approaches are currently of general interest. Recent studies have provided evidence that circadian clock is a crucial factor in the development of obesity and related metabolic disease. Genetic disruption of clock genes in mice displayed metabolic dysfunctions of specific tissues at distinct phases of the sleep/wake cycle. In addition, circadian desynchrony, a characteristic of shift work and short sleep, are associated with obesity in human. Here, I describe the advances in understanding the interrelationship among circadian disruption, sleep deprivation and obesity.
Insights
The circadian clock plays a key role in obesity and metabolic disease. Disrupting this internal clock through poor sleep or shift work is linked to weight gain and metabolic dysfunction in humans.
Area of Science:
- Chronobiology
- Metabolic disease research
- Obesity mechanisms
Context:
- Obesity is a significant global health issue with incompletely understood underlying mechanisms.
- Therapeutic strategies for obesity remain a critical area of research.
- Emerging evidence highlights the circadian clock's role in metabolic health.
Purpose:
- To review the current understanding of the relationship between circadian disruption, sleep deprivation, and obesity.
- To synthesize recent findings on the impact of circadian clock function on metabolic disease.
Summary:
- Genetic disruption of core clock genes in animal models leads to tissue-specific metabolic abnormalities.
- Circadian desynchrony, often caused by shift work or insufficient sleep, is correlated with increased obesity risk in humans.
- This review explores the intricate connections between disrupted circadian rhythms, sleep patterns, and the development of obesity.
Impact:
- Provides insights into novel therapeutic targets for obesity and metabolic disorders.
- Highlights the importance of maintaining healthy circadian rhythms for metabolic well-being.
- Advances the understanding of how lifestyle factors like sleep impact physiological processes.
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