Why do you cover your mouths when you yawn?
Because people are too stupid to notice that it lets in more air in your body when you don't have enough
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you yawn because your lungs need oxygen . \nso that more oxygen can come in easier.
Yawning is a modified breathing activity that is associated withvertebrate animals that have lungs. It is believed that yawning isa way to introduce more air and oxygen into the lungs so the animalis more prepared for activity; in other words, it's trying not tofall asleep. Since worms do not have l…ungs, I would say that theyprobably don't yawn the way we do, but maybe their bodies have amechanism that helps them enhance the amount of oxygen that theydraw in so they don't "fall asleep" when they're supposed to bedoing something else, like eating dirt, their favorite activity. ( Full Answer )
Answer . Dogs yawn as a way to calm themselves when they are stressed. An agility dog (dog that does agility tricks) will often yawn just before he does his run as a way to "stretch", or loosen himself up before doing his run. If you have a dog that yawns during obedience classes, it indicates …a need for him to be there, and over time he will become less stressed and more relaxed and you will find him yawning less and less.. Answer . Dogs and other mammals (and some non-mammals) yawn for the same reason that people do: it is a reflexive action due to a lack of oxygen in one's system (most people breathe more slowly when they are tired or bored, which causes a lack of oxygen, which then causes yawning).. ( Full Answer )
A yawn (from the Middle English yanen, an alteration of yonen or yenen, which in turn comes from the Old English geonian), is a reflex of simultaneous inhalation of air and stretching of the eardrums, followed by exhalation of breath. Pandiculation is the term for the act of stretching and yawnin…g simultaneously.\nYawning is associated with tiredness, stress, overwork, lack of stimulation, or boredom. Yawning can also be a powerful non-verbal message with several possible meanings, depending on the circumstances. In humans, yawning has an infectious quality (i.e., seeing a person yawning) or just thinking of yawning, can trigger yawning which is a typical example of positive feedback. Infectious yawning has also been noted in chimpanzees.\nThere are a number of theories that attempt to explain why animals yawn. It is likely that there are a number of triggersânot just oneâfor the behavior. However, there are a few select theories that attempt to explain the primary evolutionary reason for the yawn. None of them have been entirely substantiated, but there are two that many scientists now believe are likely contenders to be the primary trigger for animal yawns. The first states that yawning occurs when one's blood contains increased amounts of carbon dioxide and, therefore, becomes in need of the influx of oxygen that a yawn can provide. Researchers believed this theory to be true for years, but studies have actually shown that it's either incorrect or, at the very least, flawed.  Yawning may, in fact, reduce oxygen intake compared to normal respiration, not increase it.\nThe second notion, which has become the most widely accepted among the theories, states that yawning is the body's way if controlling brain temperature. The process cools off your brain, much like a fan cools the inside of a computer. Another speculated reason for yawning is the desire to stretch one's muscles. Nervousness has also been suggested as a possible reason. There have been studies that suggest that yawning, especially for psychological reasons ("contagious" yawning), may have developed as a way of keeping a group of animals alert. Anecdotal evidence suggests that yawning helps increase the state of alertness of a personâparatroopers have been noted to yawn in the moments before they exit the aircraft. ( Full Answer )
Answer . So you don't spread your germs to other people. When coughing and sneezing, most of the respiratory droplets that can spread viruses and diseases come from your mouth, but there is also a certain amount that can come out of your nose at the same time due to the force behind the cough or …sneeze. Covering both the nose and mouth during coughs or sneezes is the proper way to prevent spreading your germs and perhaps spreading diseases through these respiratory droplets. It is also the proper way for good manners, so you don't spit in someone's face (or worse, when it is coming from your nose!). School health and safety programs and hygiene classes teach children the proper way to cover their mouths and noses when they cough or sneeze. Covering both is important to prevent the spread of germs. It is best to use a tissue, but since tissues aren't always available when needed, children and adults are taught to cover their mouths and noses with their arm (or crook of arm at the elbow) to prevent the respiratory droplets from being released into the air or onto people or things. Practice good health and safety, and good etiquette by covering yours too, so you do not not "spray" others with the viruses and bacteria that are shooting out of your mouth and nose. when something is stuck in your windpipe, you cough. it a sort of an involuntary action..in you respiratory tract, u have bacteria which are trapped by the mucus. now when this mucus gets stuck, u cough to get it out so technically i wud contain bacteria and when u cough the particles in ur cough travel abt 10 meters far so anyone in that range inhaling air wud anhale the bacteria containing particles u coughed out..so basically u cover ur mouth so the bacteria cannot travel that far and cause infections in others...it doesnt benifit u anyhow..it for the safety of others ( Full Answer )
Yawning It is actually still an unknown mystery of life. Thoughthere are good hypotheses supporting why humans and animals yawn,they are not conclusive. Any explanation about why we yawn will have to explain a number ofinteresting observations: . Yawning occurs even when oxygen and carbon dioxide …levels arenormal. . Yawning may make others yawn (that is, it seems "contagious")and may indicate behavior based on social cues. Other hypotheses: . One is that when we are bored or tired, we just don't breatheas deeply as we usually do. As this theory goes, our bodies take inless oxygen because our breathing has slowed. Therefore, yawninghelps us bring more oxygen into the blood and move more carbon dioxide out of the blood (This theory could be true, because I've never yawned while playingsports or running a mile before.) . Most people think it is that you are tired or there isn'tenough oxygen coming to the brain. From recent studies it isbecause your head is over-heated. . Another person noticed that he had been sitting for about halfan hour being bored and dreamy. When he stood up, he startedyawning 2 or 3 times. Maybe his body was doing the opposite ofmaintaining homeostasis, preparing for an increased heart rate whenhis body stood up, as if about to start moving and needingoxygen. ( Full Answer )
When you are sleepy or drowsy the lungs do not take enough oxygenfrom the air. This causes a shortage of oxygen in our bodies. Thebrain senses this shortage of oxygen and sends a message thatcauses you to take a deep long breath---a YAWN.
Actually, you do not yawn when your tired Specifically. When you yawn, your releasing Carbon Dioxide from your body to keep you alert and awake.
Covering the mouth does help the spread of germs because when you let your hands go, you touch stuff. When you want to touch it again you get the germs back.and other people who touch the same thing you touch.
Most people are simply not aware of how many germs are spread by a cough. One cough can spray germs over a six-foot area! Many illnesses, such as the cold, are spread by breathing in what someone else has coughed up. It seems obvious to cover the mouth, but there are actually many people who have ne…ver been taught. ( Full Answer )
In Baseball, signs and signals are used and frequently stolen and used to obtain an advantage. It is understood and expected that the other team is actually observing and making every effort to "steal" the sign. There is a reason that pitchers cover their mouth when they talk to their catcher; there… is a reason signs are immediately changed when a player is traded to the opponent; there is a reason that catcher's mix up their signals when there is a runner on 2nd base. That is the culture of baseball and understood as a part of the game. Source:thesportsfrappe.blogspot.com ( Full Answer )
When you yawn, its because you're a little inactive. When youre not doing anything, you breathe slowly, not letting enough air get to your lungs. So your brain tells you to take a deep breath, which is what we call a 'yawn'. -from Taylor. (a 12 year old)
Well, in my science class this old dude was experimenting that. Someone yawned on stage and 55% of the audience yawned too. When he noticed that he started experimenting. He thought it might be the way your mouth moves when you yawn, so he made a video clip of a persons mouth yawning and played the …sound affect of a yawn, but then only 5% of the people yawned. So, no one actually knows why. This guy also experimented other things about yawing, but never found his answer.I read in a book it was a group thing for you to tell the group you're tired and everyone to have a rest. See the book why is snot green. ( Full Answer )
For the same reason that people look up when you look up. You can call it the power of suggestion. . its to do with the mide. to find out more i would proberly go on health websites or if your that conserned go to doctor or your actual GP yawns are very contagious. so when we yawn we got it from s…omeone and gave it to someone else. Because when you see some one yawn that makes you sleepy and you yawn unless you hold it in We yawn because it it a signal from our bodies telling us that we are tired. Yawns are not really contagious, it is just a myth. I've heard you yawn because your body is telling you that you need to keep breathing! it is because your breathing slows and your body catches up, unless it is forced yawn. Have u ever realised that u smile when someone else smiles at you.... similarly you yawn when you see someone else yawning.This is a stimulation reaction by you stimulii....this action is stored in your brain....you yawn every time you see someone yawning and also when you feel sleepy or drowsy.....when you feel either sleepy or drowsy. Your respiratory system starts taking in more of carbon di -oxide and less of oxygen...when your brain realises this it commands your body to yawn in the process more of oxygen is taken in to reduce the large amount of corbon di oxide in the body.Therefore you yawn every time you see someone yawning and also when you hear,say or read the word 'yawn'...i bet as you are reading this you must be yawning!!! Yawns can be very contagious. Even just thinking about yawning can make you yawn. I actually started to yawn answering this. Its just your brains way of working. The scientific answer is due to minor neurons in your body. When someone yawns and you yawn it is contagious but unharmful daily thing in your life. Studies showed that your brain isn't getting enough oxygen so you yawn and when someone else yawns your brain actually thinks theyre taking your air. One states that yawning occurs when one's blood contains increased amounts of carbon dioxide and, therefore, becomes in need of the influx of oxygen (or expulsion of carbon dioxide) that a yawn can provide,  but studies have since shown it to be either incorrect or, at the very best, flawed.  Yawning may, in fact, reduce oxygen intake compared to normal respiration, not increase it.  Another speculated reason for yawning is the desire to stretch one's muscles.  Yawns are often accompanied by the urge to stretch. Prey animals must be ready to physically exert themselves at any given moment. Muscles required to do this function more effectively when stretched, which is why human athletes stretch before exercise. Considering the increased amount of oxygen the body needs to sustain physical activity, it may be that, to perform best, the lungs and throat muscles need to be "limbered up" as well. Therefore, yawning could be the body's way of helping to keep the body ready for action. There have been studies that suggest that yawning, especially psychological "contagious" yawning, may have developed as a way of keeping a group of animals alert.  If an animal is drowsy or bored, it may not be as alert as it should be to be prepared to spring into action. Therefore, the "contagious" yawn could be an instinctual reaction to a signal from one member of the "herd" reminding the others to stay alert. Nervousness has also been suggested as a possible reason. Nervousness often indicates the perception of an impending need for action. Anecdotal evidence suggests that yawning helps increase the state of alertness of a person-paratroopers have been noted to yawn in the moments before they exit the aircraft because you both have different bodies working I don't. It is contagious no one knows Improving answer: It is theorized that when we were still apes that yawning was a way of signaling the rest of the group that it was time to settle down, relax, take a nap. People have a type of Hormone called Melatonin. This hormone promotes sleep, which means it makes you tired, allows you to sleep. Melatonin is found in everyone, specially teenagers, they have an extremely high ammount of melatonin. What I think is going on, is that when a person yawns, the melatonin gets released and spread through the air, hitting someone else with low amounts of melatonin, and promoting them to get tired. Because you want to do the same thing as the other person Edit: There is an actual scientific reason as to why we do this. Here is the direct order of which the action takes place: 1. Person observes yawn 2. Sensory input of the brain deactivates left periamygdalar region 3. Subject yawns in response. It is mainly social empathy in which causes this reaction to viewing another's yawn. Hope this helped. yes, because it is a natural instinct for people to yawn when others do! i heard that cave men didnt know how to talk so they would comunicate by showing there teeth. if you yawn you see there teeth. right? so this is why you yawn when you see someone else yawn!!! Edit: There is an actual scientific reason as to why we do this. Here is the direct order of which the action takes place: 1. Person observes yawn 2. Sensory input of the brain deactivates left periamygdalar region 3. Subject yawns in response. It is mainly social empathy in which causes this reaction to viewing another's yawn. Hope this helped. ( Full Answer )
becaue when you see soeone yawn it makes ur brain think u need 2 yawn. or yawning is due to the fact you are breathing slower and not taking in enough oxygen
They cover their mouth so that the opposing players cant read his lips, and figure out what they are talking about It went from being a common sense strategy to standard practice for pitchers in 1989, during Game 1 of the National League Championship Series. Cubs catcher Joe Girardi went out to …the mound to ask Greg Maddux how he wanted to pitch to Giants first baseman Will Clark. Clark saw Greg Maddux mouth the words "Fastball, high, inside", and he knocked the pitch literally out of the ballpark for a grand slam. ( Full Answer )
You cover your mouth when your are scared because you want to close your eyes but you cant your so scared so you cover your mouth
Because your breath might stink, and nobody wants you breathing bad air out of your mouth.. Just keepin' it real
Your taught this as a kid. If you cover your sneeze with your elbow instead of your hand germs won't be transmitted onto everything you touch... most importantly things like rubbing your nose... eyes... and mouth. You cover mouth because when you sneeze air born germs fly out of your mouth like a vo…lcano spewing and if you have a cold your can easily get someone else sick. When sneezing, although most of the respiratory droplets that can spread viruses, bacteria and diseases would come from your mouth, there is also a certain amount that can come out of your nose at the same time (it can also happen with a cough) due to the force behind the sneeze. Covering both the nose and mouth during coughs or sneezes is the proper way to prevent that spread of disease. It is also the proper way for good manners and being polite, so you don't spit in someone's face (or worse, what it is coming from your nose!). School health and safety programs and hygiene classes teach children the proper way to cover their mouths and noses when they cough or sneeze. Covering both is important to prevent the spread of germs. It is best to use a tissue to cover your mouth and nose, but since tissues aren't always available when needed, children and adults are taught to cover their mouths and noses with their arm (or crook of arm at the elbow) to prevent the respiratory droplets from being released into the air or onto people or things. Practice good health and safety, and good etiquette by covering yours too, so you do not not "spray" others with the viruses and bacteria that are shooting out of your nose by the thousands. The respiratory droplets can contain viruses or other germs that can then infect other people. Wash your hands after using the tissue to trap the droplets and get some tissues to have with you in case it happens again. See the related questions for how to wash your hands to remove germs. So you don't spread germs ( Full Answer )
There are basically two ways that you can deal with someone who has tuberculosis. This is a highly virulent disease and needs to have appropriate techniques taken in order to make sure that other patients and people do NOT contract the virus.. 1) You can put the patient into isolation, and all staf…f and all visitors MUST wear a face mask, gowns, and gloves, and when they leave the isolation, they MUST put all of the products into the garbage, and then thoroughly wash his or her hands.. 2) You can put a mask on the patient, and then the people who visit won't need to wear a face mask, or gown, but gloves are still adviseable with the fact that the person who has tuberculosis, can also have a positive skin test, meaning that all of the things that the patient touches you're still at risk of picking up the virus.. It doesn't matter which way you decide to do it, but you MUST wash your hands, and sanitize them with the hand santizer, as well, as promptly and thoroughly washing any part of your clothes etc., that might have come into contact with any sort of virus from the air droplets, or when the person coughs.. Also those people who work on the patient, and who visit. should be notified on the door prior to going in, to their room, or to an isolation ward, a sign should be up warning them that this patient has TB, and safety gear precaution is in place. ( Full Answer )
you just go with the flow he might have a crush on you or he might of wanted you to shut up if you were talking to much.
It could mean many things. This may sound funny, but maybe they're afraid their breath smells. They could be embarrassed of their teeth, or maybe they're just shy. They could even be biting their nails. Don't worry about it. It's probably nothing. . There are generally only three reason for this .….. the person has bad breath; bad teeth or, they may have a cold or flu. ( Full Answer )
because a while back him and his youngest son prince Michael II"blanket" were playing around and blanket got a little too rough and accidentally burst open his daddy's lip. Michael then had to undergo emergency surgery on his lip. im assuming Michael did not want to be seen like that after his surge…ry so he kept his mouth covereddd. ( Full Answer )
One way to do it is to just use your hand and place it over theirmouth. They may not think this is funny though.
Yes you can! My mare yawns all the time when she sees the bridle coming. Its as if she is pretending to be tired. As long as you have the tongue under the bit and the horse accepts it safely it is OK to be put on.
The sublingual caruncle is found under your tongue (either side of the frenulum - the small folds going from your tongue and the cavity floor). This is where two salivary glands, the sublingual and submandibular glands, empty into the oral cavity. That is why saliva will sometimes spray out when …you lift your tongue while yawning. ( Full Answer )
Yes. You can yawn, but your jaw will open, but your lips can stay closed.
Yes, if covered tightly enough (air tight) to keep adequate oxygen from getting into to your lungs. People pass out when enough oxygen can't get to their brains from the blood stream to keep fully functioning. If the oxygen gets used up and isn't replenished through breathing air in and out of th…e lungs, then you could pass out, and if deprived of oxygen for too long, you could have brain damage or even die from the lack of blood flow and oxygenation. The same effect can come from choking or strangling or other types of airway obstructions that prevent proper blood flow to the vital organs. It is not good for your body to have even short periods of low oxygenation, so it is not something to do casually or on purpose. ( Full Answer )
It turns out that yawning in horses has puzzled several people as there are many postings on the topic. Physiologically (in both horses and humans), yawning is associated with a variety of neurochemical substances that are secreted in the brain in association with changes in state of arousal. . Bo…th people and horses tend to yawn when there is a change in the state of arousal. Unsurprisingly, this frequently happens when waking up from a period of drowsiness, but it also can happen after a sudden fright or after something pleasurable. . Since horses also yawn after massages or chiropractic treatments, some people believe that it indicates a release from tension or stress. . Yawning can also occur after the horse has been holding its breath, often from being stressed physically or mentally. The yawn is an attempt to refill its lungs. Monty Roberts concurs that "the act of yawning is to take in oxygen. One element of tiring is starving the brain of oxygen. During exertion and tension we assign oxygen to muscles needed for work. Horses in their quest for survival will enter periods of extreme concern and rob the brain severely. They'll push themselves for a long time and then when they become satisfied that they are not going to die, they'll relax and yawn because their system is taking over to re-oxygenate the brain. . Someone read that its a way that horses clear dust from their airways. . Several people reported that their horses yawn in between taking their halters off and putting their bridles on, speculating that the horse likes to stretch its jaw before the restriction of the caveson. . Some people believe it's just a habit. Yawning can also be a sign of medical problems, although it's less frequent. . It can be a sign of abdominal pain or colic, or to relieve the pain from ulcers . Yawning can also be a neurological symptom of liver disease (as ammonia builds up in the blood it crosses the barrier to the brain which results in neurological symptoms one of which is yawning). Who would have thought that yawning could mean so many things! The good news is that most of the time, it is harmless. ( Full Answer )
When you cover your mouth during a sneeze, you prevent the thousands of droplets that blast out of your mouth from flying everywhere. Even though you sneeze because somethings in your nose, most of the air and droplets that fly out come from your mouth.
When we are sleepy or drowsy then our lungs don't take enough oxygen which increases carbon dioxide in our body. The brain senses this and sends us a messages that causes us to yawn. By Akhilesh Sharma
well doctors have proved that yawning has a direct connection to the amount of oxygen in someones blood. lower levels tend to make us tired or fatigued. when we need to be alert, our bodies require that there is a sufficient amount of oxygen in the blood. If there isn't enough, our bodies react by… yawning to let in more thus increasing the blood's oxygen levels so we can go about our day. but excessive yawning could be more serious then just low oxygen levels. There are several maladies, which may be directly related in causing excessive yawning like anxiety,heart attack,brain tumors, epilepsy and so on...now don't get too worried..im not saying you have any of those. but i would advise you to see your doctor and explain to them how often you yawn, how much sleep your getting etc. your doc will most likely send you home with a prescription and advise you to get more rest. At this time you should remain on the lookout for any other symptoms, which could seem unordinary to you as they may have a direct association to your excessive yawning and should be reported to the Doctor immediately. ( Full Answer )
To stop the spread of viruses or other germs that can be released in respiratory droplets. These droplets are expelled during coughs and sneezes when you have the flu or a cold. You cover to catch those germs and droplets. It is to prevent giving others the germs you have. It is also just good etiqu…ette so you don't spit on someone or their food or possessions accidentally during a cough, or make them see yucky stuff come out of your mouth and/or nose when you sneeze or cough. It is the polite and sanitary thing to do. ( Full Answer )
Yes you should cover the infants mouth and nose with your mouth when performing CPR on an infant.
sometimes its because there self conscious about there teeth or that little thing that hangs in the back of peoples mouths.
Every time you sneeze, thousands of tiny droplets are blasted out of your mouth. If you have a cold, those droplets might spread the cold to other people.
No, it's actually good for you. It's the fastest way to send air up to your brain.
yawns are actually not really contagious. when people tell you they are, it makes you think they are, but they are really not.
It shouldn't, so the likely cause is TMJD (temporomandibular joint disorder), an inflammation of the jaw at its connection to the skull. This can have a number of causes.
Yes, you can. Yawn by breathing with your nose. It's tricky, but I just did it. :)
When most people sneeze, lots of air and sometimes spit comes out of their mouths. If they sneeze, they could be sick, the air could get to someones face and they would get sick. And, If you ask me, I'd rather cover my mouth than spit on everything and everyone
The point of covering your mouth is so as not to expel germs. It's become a manners thing, but there is real purpose.
So you do not inhale the chemicals which could be very harmful to humans. Some pesticides are toxic to humans just as they are toxic to the insects, so you should avoid being in the area where these are being used. If you can not avoid the area, then reasonable measures should be taken to avoid inha…lation or ingestion of these strong chemicals. Follow the label directions carefully and exactly when handling pesticides and herbicides. Avoid using them unless absolutely necessary because of the high risks to humans, pets, and wildlife. ( Full Answer )
Well they yawn the same way you do. They pull air through their mouths, but it stops at the back of thier mouthes/throat and then is pushed back out again.
No. There is nothing you can do. Sucking copper coins was one way that was thought to have hidden drugs in your mouth, but this is a myth. Stop taking drugs, they ruin your future, your life and your body. You do not need them.
Cover mouth and nose during infant CPR because it is too hard to cover only the mouth or nose.
Coaches cover their mouths when calling plays so other teams cannot lip read what they are saying and determine what play was just called.
We yawn because our bodies are too relaxed and our brains haven'tgot enough oxygen to be comfortable. The act of yawning causes aninflux of oxygen that invigorates our system.
The common cold is caused by an upper respiratory tract infection, brought about by a virus, which, when given the right conditions will spread, causing all of the symptoms associated with the common cold. When someone has caught this virus, most scientists argue that there is absolutely no way to c…ompletely remove every virus cell from your system--but as long as your immune system remains healthy enough to combat these viruses, it really isn't that much of a problem. The virus lives within the upper respiratory tract, and therefore, by covering your mouth (and frequently washing your hands), you would be reducing the chance of your having spread the disease. Thanks so very much for all of your time and effort, everyone! God bless! Jesus Christ is Lord and Savior! ( Full Answer )
This body language is common in both genders if they lack confidence. It could also be shyness. Or it might even be an act of politeness. Only the individual themselves can answer why because everyone is different.