1-Because You Are Bored
No doubt, there are a great number of reasons of yawning but the most important and common reason of yawning is the feeling of boredom. Whenever, you see anyone yawning, your first guess may be about boredom and you are right because mostly the people yawn when they get bored. You can see a lot of examples of it even in a day, such as students usually yawn when they are in class and listening to their teachers.
2-To Show Your Teeth
It is a very interesting reason of yawning but I think, it may be hard to believe to some extent but it is true, among the great number of reasons of yawning, it is also included in this list. Showing teeth mean to get ready for battle, it is said that our ancestors yawned in order to show theirs intimidate the enemy and their teeth. Animals especially, dogs are called to yawn just before they attack.
3- Because You Are An Animal
Another interesting fact about yawning is that it is not confined only to human beings but animals also involved in it. Animals like dogs, cats all yawn, basically, almost all animals yawn, you will be surprised to know that even fish and birds yawn. But the Contagious yawn, which is a type of yawning, is confined only to humans, chimpanzees and dogs.
4-A Form Of Expressing Empathy
On the number four, there comes another very interesting and to some extent logical reason of human yawning. Yawning can be a good form of expressing empathy and it can also be explained by many social factors. Recent researches show that all human beings are more likely to yawn along with their friends and family members than with the strangers.
5-To Take In Oxygen
The fifth reason and theory of yawning, that is considered an accepted theory for many years. By yawning, we actually breathe deep into our lungs, in this way, we provide our lungs an oxygen boost, and at the same time, we also get rid of the carbon dioxide that is built up in the body, but now this theory has been disproved by Robert Provine.
6-To Cool Your Head
Although the above-mentioned theory of "To Take In Oxygen", about yawning is disproved but these days another scientific answer is given to the question "Why we yawn?". According to this theory, we yawn just to cool our heads, because the cooler heads always work more fastly and effectively. We basically try to reach the proper temperature, through yawning.
7-Because You Have A Serious Medical Condition
There are a great number of ordinary symptoms of every serious disease, and yawning is also included in the symptoms of a vasovagal reaction, which further causes fainting, nausea, cold sweat and others. Excessive yawning in human beings can be the signal of the heart attack. Similarly, excessive yawning indicates that you are suffering from sleeping disorders such as hypersomnia.
8-Talking or Reading About Yawning Triggers A Yawn
The eighth most interesting and amazing fact about yawning or reason of yawning is that, we talk about it. It is said that 'Just think about the devil and devil is here', it is exactly true about yawning, whenever we read or talk about yawning or even think about it, we begin to yawn at once, I hope that you will yawn at least once or twice when you will read this article.
9-When You Are Changing Your State
Another very interesting reason of yawning is that yawning can be a prominent sign of arousal, especially of sexual arousal. Although it is hard to believe but it is fact, so the lovers should understand the fact that your yawning during the sex is not a bad thing. According to experts, yawning is basically related to the change of state from not aroused to aroused and from wakefulness to sleep.
10-Because You Are Sleepy
In the end of this article, I am going to share another very common and logical reason of yawning. Mostly you yawn in your routine life just because you are sleepy. Because the recent researchers found that in fact people more likely to yawn in the hours before sleep as compared to in the hours after awakening. children and younger adults begin to yawn, even after being awake.
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