Air is coming in, it’s coming in, it’s coming in. Now it’s in the highest of high stretching my fully expanded mouth. I closed my eyes, stretched my arms and exhaled air back out. Yaaaaawwnnn. Ah, that’s satisfying.
We’re told guesses on why we yawn. It is a response when the brain needs oxygen. People think that it preludes sleep. But contradictories dismissed them. We don’t yawn while we’re exercising – the time when oxygen use is expeditious. Singers yawn before taking the stage – which doesn’t sound like a drowsy person.
But yawning has an alerting effect. It keeps us wake and more responsive. And it just felt damn good.
It may cool our brain as it sends air towards our headspace. Albany researchers found that those with cold packs in their foreheads are less likely to yawn than those with warmer packs. Since our brains burns a third of our calorie intake, it’s hot enough. It needs some cooling mechanism and yawning is some sort of our ventilation.
Yaaaaaaaaawwwnnnn. That’s a long one, really passionate. Writing YAWN couple of times won’t keep my mouth closed.
Everybody yawns. A growing 11 weeks old fetus already knows how to yawn. 50% of those who’ve seen other people yawning did the same. Probability is higher when we have a closer relationship with the yawner, says University of Pisa’s Elisabetta Palagi. Even dogs yawn with their owners, says Lund University’s Elainie Madsen. Many called this an evidence of empathy.
An interesting theory thinks yawning is a threat. Since it opens the mouth and exposes the sharp teeth, it may be considered as an aggressive behavior among certain species. The alpha primates yawn more frequently than the beta population. The leader is thought to yawn first while the rest follows to keep them alert in the wild. Thus, yawn is associated with dominance.
Even more intriguing, yawning is claimed to be a sign of sexual attraction. I don’t know but perhaps these scientists are bored.
How many times did you yawn while reading this?