This week, I learned that the tears we cry have a different chemical make-up. (For example, onion tears are different from sad tears.) They also look different under a microscope, depending on why we cried them (i.e., tears of laughter are distinct from tears of grief).
The biggest news to me is that tears can be natural painkillers. I used to not cry much; now, I cry more and I think this is better. Our bodies are kind of amazing.
[Two-panel comic of a girl with a braid looking at her phone, saying that she "just learned that...when we cry emotional tears, they contain a neurotransmitter that can act as a natural painkiller." In panel 2, she walks off with some pep in her step, turning to tell a lounging elephant, "Well, then! I'd say that's reason enough for me to keep watching k-dramas!" Elephant thought bubble reads: "Oh dear..."]