Sometimes, when we're outside in the sun, our nose gets a little ticklish, and that's why we sneeze. The sunlight warms up our face, which can trigger the trigeminal nerve inside our head. This nerve sends a message to our brain saying, 'Hey, I think you need to sneeze!' It's like when you blow your nose after being in a chilly room, the warmth of the sun is doing something similar.
Examples
- Walking outside after being indoors in the cold makes your nose feel warm, sometimes it even makes you sneeze!
- When you're at the beach and the sun is shining on your face, you might find yourself sneezing more than usual.
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See also
- How Do Birds Migrate So Far?
- What Causes Hiccups?
- How Can a Single Seed Grow into a Tree?
- Why Do People Have Different Shapes of Faces?
- Why Do We Blink?
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Categories: Biology · sneezing,sunlight,trigeminal nerve,allergies