One potential explanation comes from research out of the University of Nottingham, which suggests that contagious yawns are prompted by automatic, primitive reflexes in the part of the brain responsible for motor function.
Other researchers think it has something to do with empathy or social cues.
"Researchers have seen that yawning may not be as contagious to people with autism or schizophrenia," Meredith Williamson, clinical assistant professor at the Texas A&M College of Medicine, told Vital Record. Individuals with these conditions can struggle with empathy.
A 2013 study did find, however, that children with autism experienced contagious yawns as often as non-autistic children when made to focus on the yawner’s face, suggesting social cues, rather than empathy, are at play."It's multifactorial," Williamson said. "It could be partly an innate form of communication or it could be related to empathy, or a bit of both combined with other factors." Further research would be needed to pin down the exact causes.
Some people have a theory about why yawns are contagious, but it has since been proven incorrect. The theory goes like this... When you breathe, you take in carbon dioxide. Scientists used to think you yawned because you had too much Co2 in your body, and you yawned it out. When you yawn near someone else, scientists thought that they then breathed in the cloud of Co2 and then needed to yawn it out. And the theory was that when you are tired you take shallower breaths and so need to get rid of more carbon dioxide. This has recently been proven a false theory. However! When you talk to plants, it really does help them grow because you are giving out Co2 as you breath, which helps them to grow quicker.
They're contages as yawns contain a small amount of nicotien this erges people to yawn to get their fix.
Actually that is a lie. Yawns are contagious.
yawns are actually not really contagious. when people tell you they are, it makes you think they are, but they are really not.
yes, yawns are contagious and you can go to science.howstuffworks.com/life/contagious-yawn.htm
No. There's no contagious element to yawns, but they do seem to be empathetically suggestive. Many people (chimpanzees and rhesus monkeys also) yawn when they see others yawn.
Study shows yawning isn't contagious but the fact we have a circuitry system that makes us want to mimic.
No. They occur when too much gas distends the abdomen of an individual. no but yawns are.
I don't know about "drowsy" but I have heard that if someone near you yawns, you yawn too. Like yawns are contagious. Yawns don't mean that you're tired. It also means that you're not getting enough oxygen, but that has not been scientifically tested.
Yes. It is proven that yawning is very contagious. Even in dogs and other animals!
Using the dictionary definition of 'contagious' , No they are not since yawns are not passed on by physical contact as would be the case for contagion. I suspect the questioner meant to ask whether yawns are capable of being passed on to another person. The answer to this question is yes, since by a process of suggestion the person witnessing the yawn receives a subconscious signal telling them that they too can enjoy the relaxation and release that the other person is experiencing. This will then result in them yawning in sympathy with the other person.
A genetic disease is inherited genetically and contagious disease means that its easily transmitted by contact. For an example, yawning is contagious, once u or any other person yawns that yawn will soon get to someone and then they will yawn.
if someone yawns you say 'I agree'
1 yawn means you are tired. 2 yawns means you need a nap. 3 yawns means you need to go to sleep.
"He Who Yawns" was the actual name of Geronimo (Goyahkla), leader of the Apache band in Arizona.
When a hippo yawns, it signals that he is about to charge or fight. Definitely run.
yawns are contagious becuase when we see another person yawn our brain sees it as that person is gasping for air and they dont have enough oxygen so as a defense mechenisme we will yawn also.
He is tired
I smell a troll.
This is likely the transposition of the word "yawns."
Yawns are in fact contagious as it is a subconscious effect of our mind. When yawning we gain more oxygen then we would breathing. When the brain thinks that there is a lack of oxygen in a given space, due to the other person yawning, and you do as well, you are effectively trying to steal the oxygen from the other person to ensure you live. This also explains why dogs will yawn when a human does, and vice versa.
A dog is like a human , it yawns when it is tired or about to go to sleep! :D It also yawns as a sign of disapproval, or when it is stressed, and needs to calm itself down.
If a hippo yawns in your face, you're pretty much dead. Their jaws can crush you in one bite.