I don't understand why humans sneeze, and for that matter, why we sneeze twice in a row or more.
132085
First of all not all people sneeze multiple times in a row.  The reason for sneezing is your body's primary defense against something trying to get in that shouldn't be there such as dust, pollen, bacteria, etc.  The little hairs in your nose are very sensitive and when something moves them it gets trapped inside and sneezing is how your body expels the invader from your nose or throat if it made it that far although coughing is usually more related to the throat.
150043
I read something about it being impossible to sneeze with your eyes open. Even if you try your eyes would automatically close. I think they would pop out if they were taped open.
184095
well...I think that`s because when you sneeze, cough or laugh hard...your diaphragm contracts and the body is concentrated very hard on that muscle.When you cough..sneeze etc. you blow out CO2 and your body tries to get rid of it with the help of every space that leads from your body outside your body, for example : when you sneeze you have tears coming out of your eyes...that`s because it`s a sensitive tissue that produces water and has to get out fast from your body in case of emergency ... like crying(because of the nerves that must relax), laughing hard etc... I hope the answer helps..and you also must consider the answer above...with the weak muscles
666527
saying bless you shouldnt be about manners - although it has become just that - its actually a sillly superstition. so if someone sneezes and no one says "bless you" and someone thinks thats rude - they need to wake up and get a life.\ntheres a ton of $hit going on and you want a "bless you" thats stupid!
668045
It could be any number of things that are making him sneeze.\nFirst thing I'd suspect is the brand of litter.  Dust from that is very irritating.  Try another brand with a lower dust factor.\nOther causes could be carpeting, changing the AC dust filters, your cologne, cleaning fluids, indoor plants, etc.\n\nInvestigate these... you'll probably be able to ID the culprit very quick.
469958
I cannot sneeze quietly. I have tried. I HATE that my sneezes are loud. I have felt bad about myself over it! Honestly, if I could change it, I would. I'd like to think your co worker is the same way. And I hate it when people say bless you. Just ignore me or hand me a tissue if I need it.
485296
Its a defence mechanism of Respiratory Tract.\nIts called Sneezing Reflex/\nWhen any particle causes irritation of d upper reapiratory tract epithelium, there is large amount of mucous secretion. \nAs it irritates d nerves present in d upper resp. tract, therz a reflex as Sneeze.\nCoughing n sneezing r mucoescalator reflex of d Respiratory Tract.
45678
Ancient man believed that his breath was also his soul or "essence of life." When God made man, he "breathed into his nostrils the breath of life." A rapid departure of that breath--a sneeze--is the same as expelling life from one's body. Also, it leaves a vacuum in the head which evil spirits can enter. Roman citizens feared sneezing when a plague hit their city during the reign of Pope Gregory the Great. Since they regarded the sneeze as a sure sign of approaching sickness, Pope Gregory in situated the use of the phrase "God bless you" to shield sneezers from any ill effects.
226311
We sneeze to clear our breathing passages. We all have a natural reflex to sneeze whenever a small foreign substance enters our airways. So don’t hold back your sneezes-let ‘em rip!\n\nDo people really sneeze when they look at the sun? This is an important question! There a lot of things that people say they do that they don’t really do. I personally do not sneeze when I look at the sun, and for a long time I thought this was a myth. But I am guessing that you are a sun-sneezer from your question. It seems that some people really do sneeze when they look at the sun, or actually at any bright light (there is nothing special about the sun). This has been recognized in medical journals for at least 40 years, and is called different things, including the "photic sneeze reflex" and even the "ACHOO syndrome". In a few instances the reflex has been documented by shining bright lights at people to make them sneeze, so it probably really does happen.\n\nThe thing is, the sun does not make most people sneeze. The best estimates are that only about 25% of people (i.e. 1 in 4) are sun-sneezers, and even sun-sneezers don’t do it most of the time. Other studies suggest that sun-sneezers might have inherited the trait in a dominant fashion from their parents (which means that if only one parent was a sneezer, they would pass the trait on to half of their kids). The problem with these estimates is that they generally rely on asking people if they sun-sneeze, and if their parents do. This is VERY unreliable. People who sun-sneeze tend to assume everyone does, and people who don’t sun-sneeze have often never even considered the possibility!!
157599
It's possible, especially if he sneezed or coughed around you. Just because you recently had an illness doesn't mean that you can't get it again, even soon afterward. This is partly because there are many strains of viruses out there. Your body might have fought something very similar to what your friend got, but that doesn't mean you'll be immune.
5886
Sneeze is an involuntary violent expiration of air through the nose and mouth. It results from stimulation of the nervous system in the nose, causing sudden contraction of the muscles of expiration. The stimulus can include any irritating factor in the nose—inflammation of the tissues as the result of a cold or infection, allergic irritants (hay fever), or irritating substances such as dust or pollutants in the air. An occasional sneeze usually has little significance. Repeated sneezing indicates that some condition of the nose or in the immediate atmosphere requires attention.
651963
I think you're being a little paranoid.  Its allergy season.  They are probably sniffling as they pass by most people.  You just only notice when it happens to you.
17765
gggeeez.. No..  How could that be possible?  You have tons of muscles and whatnot holding them in!  That is just silly.  You can try sneezing with your eyes open, but it just doesn't happen.  There is no need to worry.
552830
I am getting over a sinus cold. On Monday, I didn't keep count throughout the day but in addition to the normal sneezing, I had 3 different sneezing fits where I sneezed at least 15 times each. It was awful. It was like sneeze, 7 seconds, sneeze, 7 seconds, sneeze. \n\nSo I'd guess maybe close to 50 times total.
618192
Yes, I have pulled rib muscles several times from sneezing. Once when I sneezed while I was lying down, I severely pulled a muscle in my neck. That was a really embarrassing way to be injured for several weeks!
163729
In a word, no, your heart does not stop when you sneeze. From my perspective, it is hard to even imagine what this would mean. A sneeze itself is really a very brief event, occurring in a shorter time then a heartbeat. Of course, there is the building up to the sneeze (the "ah" of the "ah-choo"), but the heart certainly does not stop beating because of this ah-ing. Check your pulse next time to prove this to yourself.\n\nAs I answer this question, I am trying to imagine just how the heart might even "know" that you are sneezing. The heart beats because a small part of it called the SA node has a "pacemaker" activity. What this means is that there is a type of electrical cycle going on that triggers beats roughly once every second. Sneezing does not change this electrical cycle, so the heart keeps beating. Said a different way, the muscle of your heart is a big mass of electrically active tissue, and this electrical activity will not stop because of a sneeze, or anything else for that matter.\n\nAnd yet, a sneeze is definitely a complex cardiovascular event. As you "ah" and "choo", you significantly change the pressure inside your chest, which in turn affects blood flow and thus the beating of the heart. Still further, I assume that a sneeze involves a significant activation of certain pathways of the "autonomic" (roughly means automatic) nervous system. These also innervate the heart and do affect the frequency and other aspects of the heartbeat.\n\nSo MAYBE the rapid culmination of these inputs OCCASIONALLY causes the heart to "skip a beat" after a sneeze. Notice I did not say "stop". We all experience skipped beats once in a while, some more than others. You may notice it as a "fluttering" in your chest, a sensation that generally evokes a bit of anxiety. What happens is that there is occasionally a discoordination of the normally organized pathways of electrical activity in the heart. Sometimes one part of the heart does not conduct the beat appropriately, or more commonly, another part actually manages to beat ahead of schedule, thus throwing the whole beat off. Either way, you get one beat that does not occur correctly. But all this means is that you have to wait for the beginning of the next electrical cycle to come around, at which time a normal, organized beat will occur (assuming that we are talking about a normal heart!). You see, the heart didn’t stop, really, since the electrical cycle was still ongoing. It just got out of synch for a while. Again, I am not actually aware that this happens with any increased frequency after a sneeze, but I suppose it is possible.\n\nTom Wilson, MD PhD \n\nhttp://www.madsci.org/posts/archives/mar98/890925984.An.r.html
485839
"Odaijini" (take care of yourself), if anything at all.  We don't have a custom of saying something to someone who have just sneezed.  The phrase is commonly used for someone who's ill (one assumes that if someone sneezes, that person is catching cold).\n\nThere is a popular belief, though, that if you sneeze, someone somewhere is talking about you.