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Reflexive sneezing induced by light, and sunlight in particular, is estimated to occur in 18 to 35 percent of the population and is known as the photic sneeze reflex (PSR) or the ACHOO (autosomal dominant compulsive helio-ophthalmic outbursts of sneezing) syndrome. Its genetic nature has been known for at least the last 25 years; it is periodically discussed in the medical literature and lay press. Observations that emerging from dim light into sunlight or turning to face directly into the sun commonly triggers the reflex prompted early inquiries into the trait. The number of induced sneezes--which seems to be genetically mediated and can be predicted within a family--is constant from episode to episode and typically numbers two or three.
Some consequences of the PSR include danger to automobile drivers when emerging from dim light, such as a tunnel, into full sunlight, and disruption of outdoor group photos. More recently, reports in publications oriented to military medicine have noted the potential danger to pilots experiencing the PSR. In fact, studies conducted by the military revealed that the PSR is not mediated by specific wavelengths of light and thus cannot be mitigated by the use of filtering lenses; rather the investigators concluded that the PSR is induced by changes in light intensity. Others have not found flickering light to precipitate the PSR. Exactly how sunlight causes some people to sneeze remains unknown.
When you walk into sunlight, the bright light can trigger a photic sneeze reflex in some people. This reflex causes the nerve signals from the eyes to cross paths with the nerves that control sneezing, resulting in a sneeze. It is known as the Autosomal Dominant Compelling Helio-Ophthalmic Outburst (ACHOO) syndrome.
i have no idea. I think it's
genetic because my grandfather and I both sneeze when we look at bright lights. Its not jus the sunlight, it's any bright light.
One theory I heard was that the bright light sneeze was a hang-over from our caveman days: emerging from a dirty cave into sunlight, a cave dweller would sneeze to clear his sinus passages, ensuring he could better sense game and/or danger.
There are many reasons why sunlight makes you sneeze. You squint your eyes causing tension in your sinus cavity causing the sneeze.
It is the dust which gets activated by the sun's energy which makes us sneeze.
The photic sneeze reflex causes you to sneeze in response to various stimuli, including bright light. No one really knows why.
it's called photic sneeze reflex. it happens to 1/4 of people, mostly in caucasions. you wont be able to fly a combat plane if you have it.
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How does the sun help us walk?
The sun does not directly help us walk. Walking is a physical activity that our muscles and nerves control. However, the sun's warmth and light can provide us with energy and vitamin D, which are important for overall health and may support physical activity like walking.
How long does it take in minutes to reach earth from the sun?
Light from the Sun takes about 8 minutes and 20 seconds to reach Earth.
What are the interactions between the sun and the moon?
It is my understanding that the sun and the moon are in an open relationship. I believe that their relationship started back in 2001 when the moon was walking home from a night working at a cabaret club. as the rain pelted down on her the sun, a kerb crawler, the sun pulled up and asked if she wanted to get in his car. she swiftly accepted and they moved to the position they are in today from then on. I hope this answer helps. Yours, Earth.
What happens if you sneeze in space?
In space, without gravity to pull the droplets towards the ground, your sneeze would disperse in all directions in a floating cloud of droplets. However, the cabin air filtration system onboard the spacecraft would eventually filter out the particles.
What activities do people do in the sun?
People often engage in outdoor activities in the sun such as hiking, swimming, sunbathing, playing sports, having picnics, and gardening. Enjoying the warmth of the sun can boost mood and provide much-needed vitamin D.
Potatos cccc cccc?
What you do is....... stand there and...... walk by and....... sneeze and....... keep walking.....
Why do you never sneeze just one time?
Some people only sneeze once. Like me but my sneeze is a scream. I sneeze from my throat so that is probably why I only sneeze once. When you sneeze it is normally because your nasal passages are filled with mucus and your body is trying to remove it. When you sneeze multiple times it is just a reaction. Have you noticed if someone tickles your nose or you look at the sun you sneeze? After one sneeze some people have that tickle feeling so they sneeze repeatedly.
When was Walking in the Sun created?
Walking in the Sun was created on 2004-10-18.
What is optic sneezes?
When a bright light, like the sun, makes you sneeze.
What is the name of the song that has lyrics You might as well be walking in the sun?
"Walking On the Sun" by Smashmouth
How do you sneeze on command?
Bright lights! Ever wak out into the sun and sneeze, it's a natural reaction to the light. Other than that maybe snorting/sniffing pepper.
Is it true that when ever you sneeze it is because ghosts are walking through you?
No, because if that were true pepper, pollen, and feathers would be haunted.
How does the sun bear travel?
walking
How doe sun bears travel?
walking
A rhyme denotes what happens when you sneeze on certain days of the week what happens on Tuesday?
If you sneeze on a Tuesday, you will kiss a stranger. The whole rhyme goes: If you sneeze on Monday, you sneeze for danger; Sneeze on a Tuesday, kiss a stranger; Sneeze on a Wednesday, sneeze for a letter; Sneeze on a Thursday, something better; Sneeze on a Friday, sneeze for sorrow; Sneeze on a Saturday, see your sweetheart to-morrow.
Does a walking liberty have a sun on the back?
The back of the Walking Liberty half dollar has an eagle on it. The sun is located on the front of the coin just left of Lady Liberty.
Why is a sneeze called a sneeze?
Because when you sneeze the sound you make is "SNEEZE!" ^No, it really isn't. I've not heard one person say "SNEEZE" when they sneeze, ever in my life. I've heard people say "Achoo", "Atishoo" and other ones, but never "SNEEZE".
