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Does Ramadan fasting affect sleep?

A Bahammam1

  • 1Sleep Disorders Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia. ashmmam@awalnet.net.sa

International Journal of Clinical Practice
|May 4, 2006
PubMed
Summary

Ramadan fasting significantly impacts sleep patterns, leading to increased daytime sleepiness and altered circadian rhythms. Research compares these effects to experimental fasting, highlighting unique Ramadan-specific physiological changes.

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Area of Science:

  • Chronobiology and Sleep Science
  • Human Physiology during Religious Observance

Background:

  • Experimental fasting alters sleep-wake patterns in animal models.
  • Ramadan fasting presents a unique human model distinct from experimental fasting.
  • Growing interest exists in understanding sleep changes and daytime sleepiness during Ramadan.

Purpose of the Study:

  • To review research on sleep pattern alterations during Ramadan fasting.
  • To assess changes in chronobiology, circadian rhythms, and daytime sleepiness.
  • To compare Ramadan fasting's effects on sleep with those of experimental fasting.

Main Methods:

  • Review of existing scientific literature on Ramadan fasting and sleep.
  • Analysis of studies assessing sleep architecture, daytime function, and chronobiology.
  • Comparative analysis with findings from experimental fasting studies.

Main Results:

  • Ramadan fasting is associated with significant changes in sleep patterns.
  • Increased daytime sleepiness and potential decrements in performance are commonly reported.
  • Circadian rhythm and sleep architecture modifications are observed during Ramadan.

Conclusions:

  • Ramadan fasting demonstrably affects sleep, circadian rhythms, and daytime function.
  • Observed changes during Ramadan fasting differ from those seen in experimental fasting.
  • Further research is needed to fully elucidate the mechanisms and long-term implications.

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