A quarter of people sneeze when they look at sunlight. The phenomenon is probably hereditary.
Sneezing is one of our body's involuntary protective reflexes. There are probably no health risks associated with this phenomenon. It's probably a harmless anomaly in our genetics. It only becomes dangerous if you are restricted by sneezing. This article only contains general information and is not intended for self-diagnosis, treatment or medication. Our editorial team is not allowed to answer individual questions about medical conditions. Don't miss out: You can find everything about health in the newsletter of our partner 24vita.de. Back to Mail Online home. back to the page you came from. Click here for more information about the 24Vita health newsletter. The “photic sneezen reflex” occurs primarily when one is suddenly exposed to light. The trigeminal nerve, also called the “triple nerve,” has three branches: an ophthalmic branch, a lower jaw branch and the upper jaw branch. The latter also plays an important role when sneezed.