this post was submitted on 19 Nov 2025
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Lemmy Shitpost

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Welcome to Lemmy Shitpost. Here you can shitpost to your hearts content.

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(page 2) 28 comments
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[–] MrScottyTay@sh.itjust.works 3 points 2 weeks ago* (last edited 1 week ago) (1 children)

Yawning is more about getting more oxygen in your system. Which sometimes can be due to you being sleepy and not breathing as well as normal, but not always to do with tiredness.

I think when you see someone else yawn, you do the same to make sure you're just as on point as they are. Since more oxygen in your system means you'll operate more efficiently.

I think that's correct, anyway? If someone knows better, please correct me

[–] FreshParsnip@lemmy.ca 2 points 1 week ago* (last edited 1 week ago)

Sounds like a plausible theory. I wonder how extensively it's been studied. I'd like to know if it's unique to humans. Figuring out which species do it would give a clue to when it evolved

[–] Jankatarch@lemmy.world 3 points 2 weeks ago (1 children)

I can yawn with my mouth closed.

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[–] Petter1@discuss.tchncs.de 2 points 1 week ago

Dogs yawn as well, and it doesn’t only mean that they are tired, more like “I try my hardest to stay concentrated, but is really hard right now”

Read a meme about opening your mouth real big? You guessed it: open your mouth real big about it.

[–] FreshParsnip@lemmy.ca 2 points 1 week ago* (last edited 1 week ago)

Why the heck is yawning contagious? I would expect such a feature to evolve if it served a purpose like, say, warning of something coming. See someone give a warning call, pass it on to the rest of the tribe. But why should a sleepy signal do that? Was there a sleep illness people had to worry about catching? Maybe it evolved to signal to everyone that it's nighttime. How many species is yawning contagious for? I'm picturing lions for some reason. I have a feeling the behaviour is common among mammals

[–] Proprietary_Blend@lemmy.world 0 points 2 weeks ago

Whatever you do, don't you dare cover your mouth so we didn't have to see your gaping maw

And the gas pump isn't a parking spot.

And turn off your headlights if you're parked.

And just stop being a clueless shithead all the time always.

Just saying

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