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The photic sneeze reflex manifests itself in the form of uncontrollable sneezing in response to a stimulus which would not produce a sneeze in people without the trait. The sneezes generally occur in bursts of 1 to 10 sneezes, followed by a refractory period that can be as long as 24 hours. [citation needed]
The word paroxysm means 'sudden attack, outburst' [2] and comes from Greek παροξυσμός (paroxusmós) 'irritation, exasperation'. [3] Paroxysmal attacks in various disorders have been reported extensively, and ephaptic coupling of demyelinated nerves has been presumed as one of the underlying mechanisms of this phenomenon. This is ...
Mahmood Bhutta, an otorhinolaryngologist at John Radcliffe Hospital, states that sexually induced sneezing may be genetically determined, and may result from the way the central nervous system is wired: This reflex demonstrates evolutionary relics in the wiring of a part of the nervous system called the autonomic nervous system. ...
The immune system sees the pollen as a danger and releases antibodies that attack the allergens. That leads to the release of histamines into the blood. Histamines trigger runny noses, itchy eyes ...
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When sneezing, humans eyes automatically close due to the involuntary reflex during sneeze. [3] Shadowgraph visualization of the airflow during a sneeze, comparing an unmasked sneeze with several different method of covering one's mouth and nose: sneezing into a fist, a cupped hand, a tissue, a "coughcatcher" device, a surgical mask, and an N95 ...
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