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Today I [email protected]English • 2 years ago

TIL yawning is observed in almost all vertebrate animals and is "contagious" across species. There is no consensus on why yawning occurs.

en.wikipedia.org

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TIL yawning is observed in almost all vertebrate animals and is "contagious" across species. There is no consensus on why yawning occurs.

en.wikipedia.org

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Today I [email protected]English • 2 years ago

Yawn - Wikipedia

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2•2 years ago
I wouldn’t be surprised if it’s not the human that instigates the yawn at all, and it’s initiated by the lung microbiome to regulate its environment.

For science: anyone up for huffing some chlorine to see if their yawning goes away?

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