Don_Dickle to Today I Learned@lemmy.worldEnglish • 10 months 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-square9fedilinkarrow-up1236arrow-down15
arrow-up1231arrow-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 Learned@lemmy.worldEnglish • 10 months agomessage-square9fedilink
minus-squareAwesomeLowlanderlinkfedilinkEnglish10•10 months agoWhy do we need to excrete the tears before reabsorbing them, instead of just producing and consuming them internally?
minus-square@SparrowRanjitScaur@lemmy.worldlinkfedilinkEnglish7•10 months 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?
Maybe as a social signal for other humans.