Do you sometimes sneeze when you look at the sun? This has nothing to do with an allergy. We explain.
To sneeze
Many people are familiar with sneezing as soon as the weather gets better outside. You may be suffering from hay fever, which is caused by pollen in the air. If you don’t suffer from hay fever and you sometimes have to sneeze when you look at the sun, then it has a different cause. This sneeze is triggered by the trigeminal nerve, also known as the fifth cranial nerve. As soon as this nerve is activated (by looking at the sun), you will start to sneeze. The optic nerve is near this fifth cranial nerve and this is why the sun triggers a sneeze response so quickly.
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Effect
Sneezing, especially in front of others, can be a little uncomfortable at times. Still, sneezing is a very good response of the body. In this way all kinds of substances come out of the nose that would otherwise have remained. Normally, a sneeze is caused by an allergen, for example if you are sick or have a cold. However, a sneeze can also be caused by light. The reason why some people are more prone to this than others is still unknown. It is possible, for example, that tears drip into your nose, which then activate the optic nerve and thus trigger a sneeze response.
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Photo: GettyImages
Bron: Thelist.com
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