Abstract

Daily rhythms of behavior and neurophysiology are integral to the circadian clocks of all animals. Examples of circadian clock regulation in the human brain include daily rhythms in sleep-wake, cognitive function, olfactory sensitivity, and risk for ischemic stroke, all of which overlap with symptoms displayed by many COVID-19 patients. Motivated by the relatively unexplored, yet pervasive, overlap between circadian functions and COVID-19 neurological symptoms, this perspective piece uses daily variations in the sense of smell and the timing of sleep and wakefulness as illustrative examples. We propose that time-stamping clinical data and testing may expand and refine diagnosis and treatment of COVID-19.

Original languageEnglish
Pages (from-to)423-431
Number of pages9
JournalJournal of Biological Rhythms
Volume36
Issue number5
DOIs
StatePublished - Oct 2021

Keywords

  • COVID-19
  • circadian
  • neurological
  • olfaction
  • sleep

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