We all yawn, and we all know that yawning has to do with tiredness. But unlike sleep apnea? the famous snore - yawning is an aspect of sleep that is still poorly researched. However, the Huffington Post recently released some interesting information about this habit, check it out:
1 ? There are many theories, but little evidence about the origin of yawning.
There is little research to support the myriad of theories as to why we yawn. First, we don't yawn only when we are tired. It also probably does not reflect a lack of oxygen, although the theory makes sense.
2 ? Really yawning
One study found that when shown videos of yawning, about 50% of people also began to yawn. It happens even among animals! A 2004 survey found yawns among chimpanzees, baboons and monkeys. Perhaps most impressive, however, are dogs, which can begin to yawn after just hearing their owners fall asleep. Reading about or even thinking about yawning can make us yawn. (Have we ever yawned after this reading?)
3? Yawning is most contagious among close people, such as family and friends
Isn't anyone going to pass you by? a yawn According to research conducted last year, the act is more contagious among those closest and friends. According to Michael Decker, this is a phenomenon of empathy between us. "Yawning becomes more of a social phenomenon than a physiological phenomenon," and helps explain why we yawn when we are not tired.
4? Yawning may be a sign of disease
Calm down! It is not usually the first symptom of something serious, but excessive yawning can in some cases be a sign that something is wrong besides severe sleep deprivation. In some people, excessive yawning may be a reaction caused by the vagus nerve, according to the National Institutes of Health, which could indicate a heart problem.
5? Even the fetuses yawn
No one knows exactly why, but babies also yawn during pregnancy. Although researchers have already looked at images of open-mouthed fetuses, it has already been possible to distinguish between a developing baby opening its mouth and a "non-yawning" mouth opening. according to HuffPost Science. It may have something to do with brain development, and could potentially be used as a marker of normal development, according to LiveScience.
6? Yawning lasts an average of 6 seconds
Although there is no scientific study done so far, there is a lot of research that measures yawn time and has averaged about six seconds. During these times, the heart rate increases significantly. A study last year looked at the body before, during and after yawning and found a series of physiological changes that occur during those six seconds.
Why Do We Yawn? (April 2024)
- Sleep
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