Don_Dickle to Today I LearnedEnglish • 1 month agoTIL 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.orgexternal-linkmessage-square20arrow-up1285arrow-down16
arrow-up1279arrow-down1external-linkTIL 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.orgDon_Dickle to Today I LearnedEnglish • 1 month agomessage-square20
minus-squareAwesomeLowlanderlinkfedilinkEnglish15•1 month agoWhy do we need to excrete the tears before reabsorbing them, instead of just producing and consuming them internally?
minus-square@[email protected]linkfedilinkEnglish8•edit-21 month agoAnd that, children, is how humans began to produce internal heroin in the dawn of the geneic era in the 2030s
Why do we need to excrete the tears before reabsorbing them, instead of just producing and consuming them internally?
Maybe as a social signal for other humans.
And that, children, is how humans began to produce internal heroin in the dawn of the geneic era in the 2030s
We already do, it’s called dopamine