Abstract
The periodic congestion and decongestion of the nasal venous sinuses and an alternation of airflow from one side of the nose to the other are known in literature as “nasal cycle”. It is established that nasal cycle during 24-hours registration contains from 4 to 8 time full periods, length of which varies from 0.80 h to 5.75 h. The mean length of all full periods is 2.80 ± 0.17 h. The mean length of full periods of left nostril is 3.07 h and the mean length of periods of right nostril is 2.43 h. The result suggests that there is any asymmetry in length of periods of airflow trough left and right nostrils about 40 min. The longer periods of left nostril can be connected with higher metabolic and functional activity of brain and human organism during active work.
Highlights
The spontaneous cyclical activities due to a nasal congestion and decongestion are known in literature as “nasal cycle”
Winkler et al [3] characterized daily nasal cycle as a chaotic ultradian rhythm with a periods ranging from 1 h 15 min to 3 h 20 minutes
Atanasov et al [5] firstly characterized nasal cycle during night sleep as ultradian rhythms with periods that multiplied to the length of sleep cycle (1.5 h)
Summary
The spontaneous cyclical activities due to a nasal congestion and decongestion are known in literature as “nasal cycle”. Mirza et al [1] find in the nasal cycle periods lengths ranging from approximately 1 to 5 hours during day. Gilbert [2] finds longer mean estimated period in nasal cycle during day with time-duration 4.5+/−1.0 hours (range 3.5 - 6.0 h).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
