today i learned – tues 8th aug 2017

admit it, last time you yawned, you tried to get as many people to join in as possible ๐Ÿ˜ go on … we all do it … if you donโ€™t, then you should! itโ€™s funny ๐Ÿ˜‚

that pretty much sets the tone for today! weโ€™re going all out yawn central up in this beast ๐Ÿ˜Ž

#tdil the reasons why scientists think we yawn and why yawns are contagious ๐Ÿ˜ฒ <- thatโ€™s as close as weโ€™re getting to a yawn emoji ๐Ÿ˜‚.

now, disclaimer alert! unfortunately, i canโ€™t give you the 100% reason for both of the above things because yawn experts (yes, they exist! ๐Ÿ™ˆ) donโ€™t actually know for certain ๐Ÿ˜• basically, they’re experts at something that they donโ€™t actually have info about ๐Ÿ™ƒ #awks.

anyway! i’m going to stop attacking yawn experts and tell you some cool info ๐Ÿ˜ฌ for years now, it has been thought that yawns were a way of getting us to inhale extra oxygen so that we feel enriched and awake … turns out that this thinking is actually a myth! ๐Ÿ˜ฑ

steven platek, a psychology professor from georgia gwinnett college, says that it is much more likely that yawns are a way of cooling your noggin down ๐Ÿค”. you see, as the organ that uses up 40% of your metabolic energy, your brain tends to heat up more than your other organs ๐ŸŒก.

platekโ€™s theory states that the action of when we open up wide and take a gulp of nice fresh air, it travels through our upper nasal and oral cavities. these areas are heavily populated with tons of blood vessels that go fairly directly to the forebrain … therefore, the blood is cooled when it goes into the brain #madcooling ๐Ÿ˜.

itโ€™s not all just a theory either, when studies were carried out on mice, an increase in brain temperature was found to come before a yawn … after a yawn, the rodentโ€™s brain temperature decreased ๐Ÿ‘๐Ÿป (hopefully no mice were hurt in this study ๐Ÿ˜• … surely it was just observation!?).

anyway, that seems fairly conclusive, doesnโ€™t it?! platek is pretty certain that heโ€™s right with his whole brain cooling theory … iโ€™m pretty much with him to be honest ๐Ÿค“ (but really, who am i to talk?! ๐Ÿ˜‚).

* random extra yawn fact: snakes and fish both yawn!? ๐Ÿ๐Ÿ  *

right, next on the agenda! why on earth are yawns contagious?! like, how can even reading the word yawn make some people yawn for reals?!

honest answer? itโ€™s another one that scientists canโ€™t answer ๐Ÿ˜’. that said, they have started to rule out the theory that we contagious yawn through empathy ๐Ÿค”.

a study at duke university recently found that there was actually no link between empathy and contagious yawning ๐Ÿ˜• they tested lots and lots of people – of all ages – and concluded that itโ€™s not empathy … but they have no other conclusion ๐Ÿ˜ณ #helpful.

how unfulfilling!? ๐Ÿ™ˆ donโ€™t you hate it when you think youโ€™re about to learn something and then it ends up being nothing? ๐Ÿ™ƒ #sozzaaboutthat. that said, duke university are continuing their tests and hope to find a real life reason … so iโ€™ll keep you informed ๐Ÿ‘๐Ÿป

in the meantime, why donโ€™t you see how susceptible you are to contagious yawning by using this scientific test! stick in the comments how long you last ๐Ÿ˜

right, on that rather dull note, iโ€™m going to leave this here ๐Ÿ˜‚ at least the yawning stuff at the start was interesting?

gooooooodbye! ๐Ÿ˜… #tdil


got to love a fact that is entirely based on theories ๐Ÿ™ƒ feel like learning something a bit more concrete? like how to take a picture of a black hole? just go ->here<-

(just look at that super cute lil red panda yawning ๐Ÿ™Š omgeeeee ๐Ÿ˜ … anyway, i think iโ€™m allowed to use that image … license is ->here<-)

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