why do we sneeze when we see sun directly for few seconds
"Photic sneeze reflex" is the medical term for what you've got. Researchers fear they'll get a guy like you in a screaming dogfight, you break through the clouds into bright sunlight, you sneeze, your eyes snap shut, and the next thing you know they're picking you up off the landscape with a rake.
Photic sneeze reflex occurs in something like one-sixth to one-quarter of the population. It occurs more often in Caucasians than Afro-Americans or Orientals.
According to a Johns Hopkins medic named Stephen Peroutka, the trait is passed along genetically, with a 50 percent chance of inheritance.
Researchers in Sweden found that out of 460 subjects, 24 percent sneezed in bright light, and 40 percent had at least one sneezing parent.
Sixty-four percent of children with one sneezing parent were themselves sneezers, but two nonsneezers never produced a sneezer. (Isn't it amazing how I can make these things so easy to understand?)
Nobody's exactly sure what causes photic sneeze reflex. I see here in one of the journals we have an impressive discussion of the role of the trigeminal nerve nucleus.
Basically what this is saying is that you've got a lot of nerves crammed together in the front of your head, and maybe there can can be leakage of sorts from one nerve pathway to another. So perhaps the reflex is just a case of congenitally crossed signals.
At this point nobody's prepared to go in there with a pliers and fix it. So your best bet is to wear sunglasses and stay out of fighter jets.
That is called coincidence. I mean we can't sneeze when we are looking directly at the sun. Unless it's some sort of dust particle.
I have sneezed for all kinds of things, but so far I have never sneezed for that. Maybe I will try it tomorrow and see what happens. Okay dokey, if it is sunny.
when u sneeze u say aa chi