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Today I Learned@lemmy.worldEnglish · 3 months ago

TIL there are three types of tears: basal, reflex, and psychic. Psychic tears, produced when we're sad, contain leucine enkephalin, a natural painkiller that helps us feel better.

en.wikipedia.org

cross-posted to:
todayilearned@zerobytes.monster

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TIL there are three types of tears: basal, reflex, and psychic. Psychic tears, produced when we're sad, contain leucine enkephalin, a natural painkiller that helps us feel better.

en.wikipedia.org

Don_Dickle@lemmy.world to

Today I Learned@lemmy.worldEnglish · 3 months ago

cross-posted to:
todayilearned@zerobytes.monster

Tears - Wikipedia

en.wikipedia.org

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SparrowRanjitScaur@lemmy.world
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3 months ago
Maybe as a social signal for other humans.

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