Warning – Dangerous knowledge lies ahead.
~Viewers discretion is advised~
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“Why Do We Yawn” is one of the controversial question nowadays. We all did it involuntarily but why? There are an array of radical notions for this particular occurrence of such had shed light upon this very question that was once shrouded in mystery and intricacy, myriads of maverick researches claim from different view points and explanations, which makes the answer itself quite specious.
In general perspectives, “Yawning” occurs when one feels a lack of interest, boredom, fatigue and so forth; unfortunately, those are not the case. Besides that, it could also meant that your body require an influx of oxygen and expulsion of carbon dioxide or simply because oxygen levels in our lungs are low. Studies have shown that during normal, at-rest breathing, we don’t use anywhere near our lung capacity; for the most part, we just use the air sacs at the bottom of the lungs. If the air sacs, called alveoli, don’t get fresh air, they partially collapse and the lungs stiffen a bit. As a result, it’s believed, our brain prompts the body to either sigh or take a yawn to get more air into the lungs.
You’ll probably notice that “Yawning” is contagious, either you observed or happened to heard someone’s yawning, you’ll yawn in the process. This is most likely due to “Mirror Neuron”, a neuron that fires both when an animal acts and when the animal observes the same action performed by another. Hence, the neuron “mirrors” the behavior of the other, as though the observer were itself acting. Such neurons have been directly observed in primates, humans and other species including birds. In humans, brain activity consistent with that of mirror neurons has been found in the premotor cortex, the supplementary motor area, the primary somatosensory cortex and the inferior parietal cortex.
For instance, in lieu of assemblage, if one of your fellow colleagues yawned, a chain reaction will unravel itself. Too, it indicates an appreciation of other people’s behavioral and physiological state. Such psychological contagious actions prove to be an asset in the animal kingdom, because it’s an instinctual signal to remind the so-called “group” to be alert at the moment for impending dangers.
The occurrence of “Yawning” is believed to regulate body temperature, especially the brain, it involves nasal breathing and forehead cooling. When you breathe in cool air through your nose, it cools the blood in capillaries in your nasal epithelium and sends that cooler blood to the brain. Likewise when you cool your forehead there are emissary veins that are connected to your brain, and that cools your brain.
A hypothesis was proposed that yawning are caused by chemicals or neurotransmitters in the brain that affect emotions, mood, appetite, and other phenomena. These chemicals include serotonin, dopamine, glutamic acid, and nitric oxide. The frequency of yawning arose from whence these compounds are activated.
(20 consecutive yawns in every 30 seconds was imminent during the making of this article)
