Nose · ReflexLight-induced sneezing
Bright light can trigger sneezing in some people.
Frequency: Varies by individualNose
Nose · Reflex
Nose · ReflexRunny nose while eating
Hot or spicy foods can make the nose run.
Frequency: Varies by individual
Nose · Involuntary responseNasal cycle
The nasal turbinates alternate rhythmically between greater and lesser blood flow.
Frequency: Common
Nose · Involuntary responseSide sleeping and a blocked nose
When lying on one side, the lower nasal side often swells more.
Frequency: Common
Nose · PerceptionOlfactory adaptation
A smell can seem weaker after a few minutes.
Frequency: Common
Nose · Involuntary responseSneezing after eating
Some people sneeze after a large meal.
Frequency: Frequency unclear
Nose · Involuntary responseNosebleed in dry air
Dry mucosa can make small vessels more likely to rupture.
Frequency: Varies by individual
Nose · Body soundNasal voice with a cold
Blocked nasal passages change the sound of the voice.
Frequency: Common
Nose · Anatomical variationNasal valve collapse when inhaling
In some people, the soft nasal wall pulls inward during inhalation. This can restrict airflow on one side.
Frequency: Frequency unclearSurprisingly quiet here.
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