Cell metabolism

Daily rhythms of oxygen and carbon dioxide are controlled by the body clock and influenced differently by behavior

Circadian Biology Weekly Brief ↗PubMed ↗DOI ↗

Updated

Abstract

Daily rhythms in oxygen and carbon dioxide levels are regulated by circadian clocks and feeding patterns.

  • Daily respiration patterns in animals are influenced by internal biological clocks.
  • Time-restricted feeding can restore rhythmic breathing patterns in mice lacking functional circadian clocks.
  • During daytime feeding, oxygen levels align with activity, while carbon dioxide levels shift to match food intake.
  • Alterations in carbon dioxide levels may influence the expression of clock-related genes and adjust the timing of the biological clock.
  • Oxygen and carbon dioxide rhythms are interconnected, suggesting a regulatory role for carbon dioxide in synchronizing biological clocks with feeding times.

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