Why do some people sneeze when they look directly at the sun?

Question

I just wondered if anyone knew? Thanks :)

I personally sneeze my head off lol.

Answer 1

I remember from Psych 101 that it's called a "photic sneeze." It is a real, documented phenomenon. Unfortunately, I can't remember that exact mechanism of it. It can be hereditary though.

Answer 2

Some people are just photosensitive. It's likely that they also would sneeze if they woke up in the middle of the night to use the bathroom and turned their bedroom light on, or even upon walking out of a building on a bright day.

Answer 3

that is called Autosomal Dominant Compelling Helio-Ophthalmic Outburst Syndrome. theory: The cranial nerves run very on the fringe of one yet another contained in the right. at the same time as a vibrant stimulus (eg: the solar) strikes the optic nerve as someone looks on the mild source, a reflex reaction is inspired interior the close by olfactory nerve, accordingly the sneeze.

Answer 4

I guess I never looked directly at the sun. Too bright.

Answer 5

i think looking at the sun isn't exactly what causes the sneezing.It's just that when you look at the sun your face tilts up so your nostrils are more exposed to the dust in the air.in that position it would be easier for particles to enter especially when you are inhaling.

Answer 6

It makes the eyes water.

Answer 7

Stimulation of optic nerves.