Related Experiment Video
Updated: Feb 15, 2026

Circadian Entrainment of Drosophila Melanogaster
Published on: June 3, 2020
Circadian anosmia: A rare clinical presentation
Basile N Landis1, Julien W Hsieh1, Géraldine Coppin2
1Rhinology-Olfactology Unit, Otorhinolaryngology Department, University Hospital of Geneva, Geneva, Switzerland.
Abstract:
We report the case of a 27-year-old female who presented with a peculiar story of anosmia fluctuating in a circadian manner. Olfactory function appeared an hour after breakfast, was normal during daytime, and disappeared in the early evening. Imaging confirmed chronic rhinosinusitis (CRS). Initial systemic, followed by topical steroid treatment, rapidly and sustainably reversed this condition. The olfactory fluctuation paralleled the endogenous steroid production. This suggests that slight congestion changes in a chronically inflamed nasal mucosa may have been sufficient to induce this circadian anosmia. The importance of identifying fluctuation of olfactory function as a sign of CRS is emphasized and discussed. Laryngoscope, 128:1537-1539, 2018.
Related Concept Videos
Self-Presentation
Self-Presentation: Self-Monitoring and Self-Handicapping
Strategies of Self-Presentation I: Strategic Self-Presentation
Processes of Self-Presentation
Strategies of Self-Presentation II: Self-Verification
Circadian Rhythms and Gene Regulation

