So, even when a particle does touch the nose lining, the brain doesn't notice, and we don't sneeze. Can We Sneeze While Sleeping The current consensus is a resounding no. One would think there would be other factors, but it comes down to only those two. There is no 'evolutionary trade-off' between sleeping and sneezing. It's a bit of a silly distinction I'm afraid. You may be sleeping, wake up to sneeze, and immediately fall back asleep without remembering that you sneezed. However, since there is little airflow in most bedrooms at night, and little movement to stir up dust and other particles, the nose is not bombarded by as many foreign particles as it is during the day.įurthermore, the area of the brain responsible for the sneeze reflex relaxes while we sleep. Photic sneeze reflex: exposure to bright light, especially sunlight, can trigger a response in those with a specific gene. The distinction is that you can wake up to sneeze, but you can't sneeze in your sleep. Or, in other words, we sneeze.īecause the nose lining tends to swell when we lie down, making it even more sensitive to sneeze-causing particles, it would seem that sneezing would be likely during sleep. Once stimulated, these muscles go to work and cause us to forcefully expel air from the mouth and nose. When something, say a piece of dust or a strong odor, stimulates nerve endings in the lining of the nose, the stimulus travels to the central nervous system and is then routed back to the muscles of the face, throat, and chest. Sneezing is a reflex, which means that it's an uncontrollable physical response to an outside stimulus. To understand why, first we need to know why we sneeze while we're awake. Shower and wash your hair before bed, as pollen floating about during the day can stick to your hair you dont want pollen rubbing off on your pillow and then. Chances are you can't, because, thankfully, we don't sneeze while we sleep. It's a momentarily paralyzing experience that can seize one at almost any time.īut try and recall if you've ever been jarred out of a peaceful sleep by an explosive sneeze. until finally a sneeze blasts forth, concluding the drama. The signs are unmistakable: the eyes water, the chest heaves, the nose twitches, the body tenses, suspense builds.
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