As far as I know, the purpose of yawning isn’t really understood, but it’s present in nearly all land vertebrae. Maybe it’s a universal bug in the breathing animation code.
It clears your sinus / ear tubes, useful for pressure equalization even when walking mild elevation changes
Probably at least somewhat related to that somehow I bet
Then why contagious?
Monkey see, monkey do.
But my pets yawn when I yawn
Nice pet monkeys you’ve got there
Does it also help reticulate my splines?
Yawning is for getting more air when you don’t have enough.
Its actually pretty difficult to have inadequate blood oxygen if you have full functional lungs
You actually breath less when you sleep, so you yawn when you wake up to transition to a higher breathing state
It’s the equivalent of degaussing your character.
musk believes we’re living in a simulation, so I’m sure we don’t.
In my opinion it’s the modern “explain what cant be easily explained with gods”
It also helps them being inhuman and cruel, because it’s a simulation anyways, right?
neither is sleeping - nor dreaming. sleep is still such an interesting and elusive thing.
i’ve recently fallen into what i can only hope is a trap. i think i’m already dead, and this experience is just me remembering my life.
Woof. I dread to think that I would remember in such precise detail all the dozens of lemmy posts and comments I’ve read this morning. But it’s quite a thought!
i can’t quite describe the intensity of the horror. it’s like a dream where you can’t run, but at time same time someone’s forcefully twiddling a finger on your precious in-between. it’s a scream you just can’t type.
Can you really recall every single detail? I’m not sure about you, but I can easily spend 30 minutes reading comments and then forget exactly what I was reading. Could I be reading gibberish that feels meaningful in the moment, but is gone as soon as I move on? Kind of like a dream?
oh hi DP/DR.
oh no there’s a wikipedia article. i’m not going to get any sleep tonight
He once saw a painting that told his whole life story…
Yawning also has a social effect, which is why it is “contagious”
If a big part of the tribe gets tired, then everyone will want to rest.
Many many animals yawn. Not just mammals but birds and reptiles. Even if we don’t understand fully why something happens, seeing it throughout the tree of life like that probably means there’s some reason for it.
I thought I’d read that yawning is just to help boost your oxygen levels, but I don’t have sufficient motivation to actually look it up.
That’s easy to check. I’m currently insanely jet lagged and super tired, yawning every few minutes. My pulse oximeter is indicating 99% saturation, so that’s not it.
Edit: on the other hand, I’m a flight attendant, so my body is used to lower oxygen atmospheres, so I usually have >98% O2 levels.
Maybe you’re at 99% because you’ve been yawning?
Ok, I am sufficiently caffeinated and bothered to look up a study: https://pmc.ncbi.nlm.nih.gov/articles/PMC3678674/
According to the above, they suspect it has to do with helping to keep you relative alert/awake but also, possibly to cool the brain and adjust ear pressure.
The thing is that my o2 saturation doesn’t drop between yawns, which is what leads me to believe that’s not it.
Yeah, there doesn’t seem to be anything (at least in that study) to suggest it actually impacts blood oxygen levels either.
Always compiling those damn shaders
Smog is just the developers’ workaround for overpopulation because the universe machine can’t handle that many animated entities without distance culling.
It’s your soul trying rush out, but saying"God Bless You" crams it back in.