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Smart answer:
After reading 1383 websites, we found 18 different results for "why do we sneeze"
irritating the nasal mucosa
Sneezing is usually caused by foreign particles irritating the nasal mucosa, but can more rarely be caused by sudden exposure to bright light or a full stomach.
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in response to irritation in the nasal cavity, which results in an afferent nerve fiber signal propagating through the ophthalmic and maxillary branches of the trigeminal nerve to the trigeminal nerve nuclei in the brainstem
Sneezing occurs in response to irritation in the nasal cavity, which results in an afferent nerve fiber signal propagating through the ophthalmic and maxillary branches of the trigeminal nerve to the trigeminal nerve nuclei in the brainstem.
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to clear unwanted irritants or germs from the nose
The purpose of sneezing is to clear unwanted irritants or germs from the nose.
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because of allergies, smoke, dust, wood dust, irritants or due to cold
The reasons for sneezing may be because of allergies, smoke, dust, wood dust, irritants or due to cold.
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sudden exposure to bright light, sudden decreases in temperature, breezes of cold air, or a viral infection
Some of the reasons why we might sneeze include sudden exposure to bright light, sudden decreases in temperature, breezes of cold air, or a viral infection.
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such as allergic reaction to pollen, mold, dander and dust, corticosteroid inhalation from some nose sprays, and other nasal irritants like powder
Sneezing is caused by various factors such as allergic reaction to pollen, mold, dander and dust, corticosteroid inhalation from some nose sprays, and other nasal irritants like powder.
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of sensitive nerve endings
Sneezing is usually caused by the irritation of sensitive nerve endings in the mucous membrane that lines the nose.
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irritation to the mucous membranes of the nose or throat
Sneezing is caused by irritation to the mucous membranes of the nose or throat.
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allergies and flu
But the two most important reasons why people tend to sneeze continuously are – allergies and flu.
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Irritants, such as pollen and dust
Irritants, such as pollen and dust, aggravate the nose and cause sneezing.
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Foreign objects
Foreign objects can get trapped in one or both nostrils and cause sneezing.
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a reflex the upper respiratory tract uses to get rid of irritants
Sneezing is a reflex the upper respiratory tract uses to get rid of irritants.
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because of some nerves that are triggered by a stimulus and
Interestingly, sneeze happens because of some nerves that are triggered by a stimulus and this happens only when we’re awake.
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all of which irritate the hundreds of sensitive hairs in the nose
Sneezing can be caused by a cold virus, allergies, chemicals, or a sudden inhalation of particulate matter like dust, all of which irritate the hundreds of sensitive hairs in the nose.
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