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Sleep and the immune system

H Moldofsky1

  • 1University of Toronto Centre for Sleep and Chronobiology, Toronto Hospital, Western Division, Ontario, Canada.

International Journal of Immunopharmacology
|August 1, 1995
PubMed
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The sleeping-waking brain intricately regulates immune, neuroendocrine, and thermal functions. Disruptions in sleep-wake cycles can negatively impact these systems and increase susceptibility to illness.

Area of Science:

  • Neuroscience
  • Immunology
  • Endocrinology

Background:

  • The body's immune, neuroendocrine, and thermal systems are closely connected to the brain's sleep-wake cycle.
  • Research indicates a link between sleep and peripheral immune functions, such as natural killer cell activity and cytokine levels.

Purpose of the Study:

  • To explore the relationship between the sleeping-waking brain and the body's physiological operations.
  • To understand the role of circadian rhythms in immune, neuroendocrine, and thermal functions related to sleep.

Main Methods:

  • Review of recent animal and human studies.
  • Analysis of diurnal patterns in human immune functions and cytokines.
  • Examination of the interplay between sleep-wake states and physiological systems.

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Main Results:

  • Diurnal patterns of immune functions (e.g., natural killer cell cytotoxicity) and cytokines (e.g., interleukin-1) in humans correlate with sleep.
  • Harmonious circadian rhythms across immune, neuroendocrine, thermal, and brain activities are crucial for sleep regulation.
  • Disruption of the sleep-wake system leads to altered immunological, neuroendocrine, and thermal functions.

Conclusions:

  • The sleep-wake system is integral to maintaining coordinated physiological functions.
  • Dysregulation of sleep can compromise immune, neuroendocrine, and thermal health, potentially leading to diseases like infections.