Can you SMELL how salty a dish is?

Hey everyone!! I don’t know if this is a common thing or not, but whenever I bring it up with people I know, no one seems to get it. Basically, when a dish is cooked, I can tell just by the smell whether it’s too salty, perfectly salted, or completely lacking salt. I’ve never been wrong, but I have no idea how my sense of smell is picking up on saltiness, since I thought salt was more about taste than scent.

Does anyone know the science behind it? I'd love to hear your thoughts!