1.为什么看太阳会打喷嚏?强光导致打喷嚏的现象被称为“光学喷嚏反射”。眼睛和鼻子的感知能力受到控制脸部大部分区域的三叉神经的支配,所以主管打喷嚏的颅神经与视神经连在一起,一旦眼睛受到强烈阳光刺激,鼻黏膜也会同时受到这种过度刺激,进而引起喷嚏反射。2.为什么鼻腔黏液会变绿?健康的鼻子每天产生大约半升黏液。鼻黏液的作用是捕获灰尘和污物 1. Why do you see the sun sneezing? The phenomenon of glare that causes sneezing is called “optical sneeze reflex.” The perception of the eyes and nose is dominated by the trigeminal nerve which controls most of the face area, so the cranial nerve in charge of sneezing is connected with the optic nerve. Once the eye is strongly sun-stimulated, the nasal mucosa is also subjected to such overstimulation. And then cause sneeze reflection. 2. Why does nasal mucus turn green? Healthy nose produces about half a liter of mucus daily. The role of nasal mucus is to catch dust and dirt