One Night of Sleep Loss Alters Immune Cells, Mimicking Obesity's Inflammatory Effects
February 25, 2025
The findings revealed that just one night of sleep deprivation can alter immune cell profiles, making them resemble those of obese individuals and increasing the risk of inflammation.
A recent study published in The Journal of Immunology involved 237 healthy adults of varying body mass index (BMI), assessing their sleep patterns and immune cell profiles.
Significantly elevated levels of non-classical monocytes, which are crucial for immune response, were observed in obese participants, correlating with poorer sleep quality and higher inflammation markers.
The study highlighted that obese individuals generally experience poorer sleep quality and exhibit higher levels of chronic low-grade inflammation compared to their lean counterparts.
Interestingly, five lean individuals also underwent a sleep deprivation segment, during which their monocyte profiles changed similarly to those of obese individuals, further reinforcing the connection between sleep and inflammation.
These chronic disruptions in sleep may contribute to long-term inflammatory diseases, including obesity, diabetes, and cardiovascular conditions.
Dr. Fatema Al-Rashed, the lead researcher, pointed out the public health challenges posed by modern technology and lifestyle changes that disrupt sleep patterns.
The long-term goal of this research is to inform public health policies that prioritize sleep as a strategy to mitigate the burden of inflammatory diseases.
Future research will delve into the mechanisms linking sleep deprivation to immune changes and explore potential interventions, such as structured sleep therapies, to reverse these effects.
Summary based on 2 sources
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Sources

EurekAlert! • Feb 24, 2025
One day of sleep deprivation can alter your immune system and increase inflammation
Neuroscience News • Feb 24, 2025
Poor Sleep Alters Immune Cells, Increasing Risk for Inflammatory Diseases - Neuroscience News