Night Shift Work Linked to Increased Risk of Diabetes and Obesity

Washington State University Study

Researchers from Washington State University, USA, have unveiled findings indicating that as few as three consecutive night shifts may heighten the risk of developing diseases such as diabetes, obesity, and other metabolic disorders. The study highlights how night shifts disrupt the body’s protein rhythms associated with blood glucose regulation, energy metabolism, and inflammation, potentially exacerbating chronic metabolic conditions.

New Delhi: A recent study suggests that just three consecutive night shifts could significantly elevate the likelihood of developing various diseases, including diabetes and obesity, according to researchers from Washington State University, USA. The study reveals how night shifts disrupt the body’s protein rhythms responsible for regulating blood glucose levels.

Published in the Journal of Proteome Research, the study emphasizes the significance of the body’s “master biological clock,” which governs daily rhythms. Disruption of this clock due to night shifts can induce stress, leading to long-term health consequences, as explained by Professor Hans Van Dongen.

Furthermore, Van Dongen notes that even a brief period of night shift work can disrupt these rhythms, increasing health risks. This suggests the potential for early intervention to mitigate the risks of diabetes and obesity.

Using blood samples, the research team identified specific proteins within blood-based immune cells, some of which closely followed the master biological clock’s rhythms without alteration during night shifts. However, the majority of proteins exhibited changes. Analysis revealed a significant disruption in glucose regulation rhythms among night-shift workers, along with desynchronization in processes related to insulin production and sensitivity.

Moreover, previous studies have highlighted the detrimental impact of shift work on blood pressure, increasing the risk of cardiovascular diseases such as heart disease and stroke, particularly among night shift workers.