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I find stuff like this really interesting, a large (double digit) percentage of the population has the condition, and may or may not assume it is normal. I don

I find stuff like this really interesting, a large (double digit) percentage of the population has the condition, and may or may not assume it is normal. I don't have Exploding Head Syndrome, but I do have the Photic sneeze reflex [1], which affects ~20-30% of people. People with the reflex tend to sneeze when they see bright things such as the sun. My father and I both have it, and it felt great when I told him about it. He was as surprised as I was that it didn't happen to everyone! In a weird way I'm grateful for it, as I'm sure the reflex urged me to stay inside and cultivate my love for computing :). It's too bad it made me dislike the beach as a kid though -- these days I make sure to bring sunglasses. [1] https://en.wikipedia.org/wiki/Photic_sneeze_reflex https://en.wikipedia.org/wiki/Photic_sneeze_reflex

JshWright 7y ago
I had a similar experience when I learned that "aphantasia" is a thing (or rather, that having a "mind's eye" isn't just a figure of speech).
- pansa2 7y ago
  Similar for me with “musical anhedonia”. It blew my mind to find out that “sad songs” actually make people feel sad - it doesn’t just mean “low tempo” or “appropriate to play at a sad time”.
5co 7y ago
Do you or your father have deviated septum's? I ask as if you will actually know lol, apparently 80% of us have deviated septum's and there's a direct correlation between that and photic sneezers. I've had it for years but I only found out recently during a routine inspection that I do indeed have a deviated septum.
- amelius 7y ago
  My septum was surgically corrected but I still have the sneeze thing.
ddevault 7y ago
I have this, too - found out when I started doing astronomy and looking in the sky all the time. I also have a rarer one: the cough-ear reflex, which affects something like 2%. I involuntarily cough when I put in earplugs. The human body is weird!
- tapland 7y ago
  That seems pretty reasonable/possibly explainable though. Putting eaebuds in deep I can feel a light gag reflex, ears and back of the throat are closely connected.
  - gedy 7y ago
    That's interesting if so, as I have some sensoneural hearing loss in inner ear, and had a period in past where I felt like was choking or some unexplained swallowing problems. Thought I was going bonkers when they couldn't find a problem.
amelius 7y ago
> People with the reflex tend to sneeze when they see bright things such as the sun. I have this and I also sneeze every time I eat peppermint.
Edd314159 7y ago
Apparently this is very common with infants and young children. My two-year old sneezes in sunlight all the time. I mentioned it to our doctor (not because I was worried, just as an interesting comment) and he said most kids do this and some grow out of it.
cryptica 7y ago
I also have photic sneeze reflex but it only happens once per day when I expose myself to direct sunlight. Though typically I sneeze twice in a row and then it stops.
forkexec 7y ago
I have it. Every daytime movie experience (that I haven't been to in a while) results in my sneezing 1-2 times. My ancestors must've evolved to live in some dirty caves. ;)
dirtyid 7y ago
I was shocked at the number of middle aged people who has never experienced heartburn. Around half of folks I surveyed. All the OTC anti-acid commercials led me to believe it was one of those conditions everyone suffered once in a while. Also surprising amount of people who never experience headaches.
snarfy 7y ago
I have photic sneeze reflex, hypnic jerk, and TIL exploding head syndrome. I associate hypnic jerk with a sensation of falling, whereas exploding head syndrome is a loud bang and bright flash. They both make you jump. I didn't know there was a different term for the loud bang/flash type.
saghm 7y ago
I have the photic sneeze reflex too (didn't know there was a name for it!), and I've always known it was fairly common, but last summer I mentioned it to my grandfather, who had the opposite reaction as your father; he never knew it happened to anyone besides him! I wasn't aware he had it; he's my first relative that I've discovered has it as well.

JshWright 7y ago

I had a similar experience when I learned that "aphantasia" is a thing (or rather, that having a "mind's eye" isn't just a figure of speech).

pansa2 7y ago
Similar for me with “musical anhedonia”. It blew my mind to find out that “sad songs” actually make people feel sad - it doesn’t just mean “low tempo” or “appropriate to play at a sad time”.

5co 7y ago

Do you or your father have deviated septum's? I ask as if you will actually know lol, apparently 80% of us have deviated septum's and there's a direct correlation between that and photic sneezers. I've had it for years but I only found out recently during a routine inspection that I do indeed have a deviated septum.

amelius 7y ago
My septum was surgically corrected but I still have the sneeze thing.

ddevault 7y ago

I have this, too - found out when I started doing astronomy and looking in the sky all the time. I also have a rarer one: the cough-ear reflex, which affects something like 2%. I involuntarily cough when I put in earplugs. The human body is weird!

tapland 7y ago
That seems pretty reasonable/possibly explainable though. Putting eaebuds in deep I can feel a light gag reflex, ears and back of the throat are closely connected.
- gedy 7y ago
  That's interesting if so, as I have some sensoneural hearing loss in inner ear, and had a period in past where I felt like was choking or some unexplained swallowing problems. Thought I was going bonkers when they couldn't find a problem.

amelius 7y ago

> People with the reflex tend to sneeze when they see bright things such as the sun. I have this and I also sneeze every time I eat peppermint.

Edd314159 7y ago

Apparently this is very common with infants and young children. My two-year old sneezes in sunlight all the time. I mentioned it to our doctor (not because I was worried, just as an interesting comment) and he said most kids do this and some grow out of it.

cryptica 7y ago

I also have photic sneeze reflex but it only happens once per day when I expose myself to direct sunlight. Though typically I sneeze twice in a row and then it stops.

forkexec 7y ago

I have it. Every daytime movie experience (that I haven't been to in a while) results in my sneezing 1-2 times. My ancestors must've evolved to live in some dirty caves. ;)

dirtyid 7y ago

I was shocked at the number of middle aged people who has never experienced heartburn. Around half of folks I surveyed. All the OTC anti-acid commercials led me to believe it was one of those conditions everyone suffered once in a while. Also surprising amount of people who never experience headaches.

snarfy 7y ago

I have photic sneeze reflex, hypnic jerk, and TIL exploding head syndrome. I associate hypnic jerk with a sensation of falling, whereas exploding head syndrome is a loud bang and bright flash. They both make you jump. I didn't know there was a different term for the loud bang/flash type.

saghm 7y ago

I have the photic sneeze reflex too (didn't know there was a name for it!), and I've always known it was fairly common, but last summer I mentioned it to my grandfather, who had the opposite reaction as your father; he never knew it happened to anyone besides him! I wasn't aware he had it; he's my first relative that I've discovered has it as well.