system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why doesn't the wetness of your eyeballs freeze in such negative degree temperatures?

I was greeted with -12 this morning. My nostril hairs stuck together, lost my breath, and a tear running down my cheek just stopped in place.
gpt
They're largely encapsulated in your nice, warm head, and receive a pretty continuous supply of blood from your core, which provides them heat. As well, your tears, being salty, are somewhat more resistant to freezing.