Don_Dickle@lemmy.world to Today I Learned@lemmy.worldEnglish · 1 year 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-square14linkfedilinkarrow-up16arrow-down11
arrow-up15arrow-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@lemmy.world to Today I Learned@lemmy.worldEnglish · 1 year agomessage-square14linkfedilink
minus-squareAwesomeLowlander@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up1·1 year agoWhy do we need to excrete the tears before reabsorbing them, instead of just producing and consuming them internally?
minus-squaredelirious_owl@discuss.onlinelinkfedilinkEnglisharrow-up1·edit-21 year agoAnd that, children, is how humans began to produce internal heroin in the dawn of the geneic era in the 2030s
minus-squareAwesomeLowlander@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up1·1 year agoWe already do, it’s called dopamine
minus-squareSparrowRanjitScaur@lemmy.worldlinkfedilinkEnglisharrow-up1·1 year agoMaybe as a social signal for other humans.
Why do we need to excrete the tears before reabsorbing them, instead of just producing and consuming them internally?
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
Maybe as a social signal for other humans.