What happens when you sneeze and plug your nose and mouth at the same time?
458412
no, but ur head hurts with all the pressure - it could make a blood vessel pop - be careful
1003908
my nose, when I sneeze
107788
Its to keep your eyes from popping out of their sockets! Just kidding.\n\nActually, ASK Yahoo already adresses this question at http://ask.yahoo.com/20050721.html\n\nHere's a copy of their answer:\n\nDear Yahoo!: \nWhy is it impossible to sneeze with your eyes open? \nKevin\nEl Monte, California \n \nDear Kevin: \nThe received wisdom states that if you don't blink when you sneeze, your eyes will fly out of your head. Thankfully, as is often the case with urban legends, this theory is a load of hooey. Your eyeballs are safe and sound in their sockets. For a funny pictorial representation of this hypothetical scenario, check out this urban myth page from MTV: http://www.mtv.com/onair/big_urban_myth/birth/index.jhtml?choose=Sneezing+To+Blindness\n\nIn reality, a sneeze is simply an involuntary nervous response to nasal irritation. According to this nifty science blog entry (http://sxxz.blogspot.com/2004/12/sneeze-science.html), the sneeze impulse affects a variety of body parts, including the abdomen, chest, neck, and face. During a sneeze, the impulses that travel through your face cause your eyelids to blink. This response is entirely automatic. There's nothing you can do about it. Sneezing puts a lot of pressure on your head and respiratory system, so blinking is probably a protective mechanism. \n\nThe point is that all of these responses (the abdominal contraction, the sharp burst of air out of your lungs, the general lunging movement) are intertwined. When you sneeze, you can't do one without the other.
232966
the nose offactory glands produce mucuse to stop viruses and infections from entering your nasal passages. then promts you to sneeze the trapped particles out. If sneezing doesent work the cold sets in and to release the particles the nose begins to run. Dried mucus then clogs the nose completely however even before running you cant smell because the fine glands are covered first before the nose begins to run so you can breath but may not smell as good.
59078
Many people thought that sneeze is impolite, it's true if you do it on purpose. But it is natural and it is good because when you sneeze bacteria that try to come inside your lung will come out. Try to cover your mouth and nose when you feel, you will sneeze.
304437
When you sneeze, it is said that your heart stops beating. \nWhen you cough, your heart is not affected.
191230
Actually, yes it can be dangerous. Holding in a sneeze can force bacteria into your ear, and can even cause your eardrum to rupture. In addition, it can cause chest pain, and stress on the throat. In other words, if you have to sneeze, let it out! In class you might want to sneeze (or cough) into the bend of your elbow. It's the best place. Coughing or sneezing into your hand spreads germs.
176886
See your doctor about allergies. Most of the time, when ears plug up, it is caused from one of two things: excess wax build up or eustacian tube dysfunction. The Eaustacian tube is a tube that runs from the nose to the middle ear. If you have allergies, runny nose, stuffy nose, sneezing, etc., it causes inflammation inside the nose and blocks the opening of the tube. Fluid then builds up in the ear, 'plugging' them up.
870320
ditto to the 2 answers above\n\nyou may get some peace from sneezing ect ... because you are relaxed\nbut you still CAN sneeze
813273
Yes it does.  My eyes squint, my nose starts itching, and then I sneeze. I thought I was the only one who did that.
1159450
goose bumps are triggered by some involuntary nerve signals which could be triggered by heavy sneezing, i get once in a while if the sneezing is quite strong, even i get  blinkers in front of my eyes like floating particles(you might have noticed in  cartoon characters mugged on their heads )
1008079
Because the pressure of the sneeze, you close your eyes. You can't control them because its something the body controls. Try holding your nose or biting your tongue though if you're about to sneeze. Then you don't.
191465
No, that is a myth....\n\nIn a word, no, your heart does not stop when you sneeze.  From my \nperspective, it is hard to even imagine what this would mean.  A sneeze \nitself is really a very brief event, occurring in a shorter time then a \nheartbeat.  Of course, there is the building up to the sneeze (the "ah" of \nthe "ah-choo"), but the heart certainly does not stop beating because of \nthis 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 \neven "know" that you are sneezing.  The heart beats because a small part of \nit called the SA node has a "pacemaker" activity.  What this means is that \nthere is a type of electrical cycle going on that triggers beats roughly \nonce every second.  Sneezing does not change this electrical cycle, so the \nheart keeps beating.  Said a different way, the muscle of your heart is a \nbig mass of electrically active tissue, and this electrical activity will \nnot stop because of a sneeze, or anything else for that matter.\n\nAnd yet, a sneeze is definitely a complex cardiovascular event.  As you \n"ah" and "choo", you significantly change the pressure inside your chest, \nwhich in turn affects blood flow and thus the beating of the heart.  Still \nfurther, I assume that a sneeze involves a significant activation of \ncertain pathways of the "autonomic" (roughly means automatic) nervous \nsystem.  These also innervate the heart and do affect the frequency and \nother aspects of the heartbeat.\n\nSo MAYBE the rapid culmination of these inputs OCCASIONALLY causes the \nheart to "skip a beat" after a sneeze.  Notice I did not say "stop".  We \nall experience skipped beats once in a while, some more than others.  You \nmay notice it as a "fluttering" in your chest, a sensation that generally \nevokes a bit of anxiety.  What happens is that there is occasionally a \ndiscoordination of the normally organized pathways of electrical activity \nin the heart.  Sometimes one part of the heart does not conduct the beat \nappropriately, or more commonly, another part actually manages to beat \nahead of schedule, thus throwing the whole beat off.  Either way, you get \none beat that does not occur correctly.  But all this means is that you \nhave to wait for the beginning of the next electrical cycle to come around, \nat which time a normal, organized beat will occur (assuming that we are \ntalking about a normal heart!).  You see, the heart didn’t stop, really, \nsince the electrical cycle was still ongoing.  It just got out of synch for \na while.  Again, I am not actually aware that this happens with any \nincreased frequency after a sneeze, but I suppose it is possible.\n\nTaking a more historical/philosophical view of your question, the much more \nlikely explanation for why people say "God bless you" has to do with \nreligious beliefs and superstition.  As I understand it, in earlier times \nit was believed that when you sneezed you opened yourself, or your soul, to \nthe outside world.  It was an unnatural and certainly a bizarre happening, \nand clearly portended evil.  I am certain that there are variations on this \ntheme, but basically it was thought that your soul might escape, or demons \nand evil spirits might get in, or even that they may have caused the sneeze \nin the first place.  The blessing was to help ward off such badness.  I am \nno historian, but I think people have done fairly extensive studies of this \ncustom, its variations, and its origins.\n\nAh, well.  Or maybe I should say, Ah choo.\n\nTom Wilson, MD PhD
401936
Of course, its a perfectly natural situation. Something that irritates the nostrils' delicate lining makes the nerve endings not only say that 'hey there's an itch here too!' but the sneeze reflex also responds to the irritant.
564644
the only systems that a sneeze can effect are:\n\nrespiratory (the heart skips a beat when you sneeze [hince why we say bless you])\n\nmuscular (the muscles tighten up when you sneeze [if someone were to sneeze 100 times in one day, they will burn 5 calories])\n\nof course your nervous system ( when you sneeze and your body moves, reacts, or holds your hands up its because of your nervous system tells it to do so.)\n\nwell your immune system is kind of effected. ( its the reason why youre sneezing in the first place)( its getting rid of unwanted air or particles that recently entered your body)\n\nand thats all i believe.
538672
due to the sudden jerk you get while you sneeze, you automatically make you body tight and then suddenly it becomes loose. thus the blood pressure increases. \nSometimes people feely giddy due to a sudden and big sneeze. this is because, the brain cannot coincide with the blood pressure. thus it happens. but remember this is all just for quite a fraction of a second. \n\nHope it was clear enough.
760689
If you did manage to sneeze with your eyes open, your eyes would pop out of your head.   Er, no. As discussed above, some people do manage to sneeze with their eyes open, and they don't go blind from it. Eye sockets are made of bone, they aren't connected to the nasal passages, and there are no muscles behind the eyes that contract when you sneeze, so there's really no mechanism involved in a sneeze that could force your eyes out of their sockets. Even if there were, human eyelids aren't particularly strong, so simply closing your eyes during a sneeze wouldn't be sufficient to keep them in their sockets if a sneeze truly had enough power to dislodge them. (In any case, some people — due to circumstances such as birth defects or injury — do not have eyelids. Were the "eye-popping" rumor true, all of those people would have to spend their lives in constant mortal fear of sneezing.)