Mucus is water and some glycosylated peptides (what’s that? it means some sugar molecules glom together with some amino acids) which carry immune cells. This mucus partially solidifies around dust or other particles from the air. It’s purpose is to be picked out, blown out or fall out and be discarded so that those particles carrying bacteria don’t infect you with whatever illness they may cause - colds being the most common.
The “danger” of eating your boogers is that you’re also consuming the very bacteria that your body is trying to protect you from. They may make you sick, although frankly it’s not too likely, as the acids in your stomach are strong enough to kill most common bacteria.
As a precocious child with a better grasp of the language than was probably healthy at that tender age, I initially assumed “it” was the most logical antecedent: “your nose.” I wondered why people didn’t just say “picking and eating your nose,” much as one might pick and eat apples or strawberries.
It occurred to me that few to none of my playmates, inveterate nosepickers all, were missing any facial features beyond the occasional baby tooth.
Then I learned the word booger, and the light dawned.
In Stephen King’s “The Dark Tower”, he shows us a race of non-human folk living side by side with humans, and working with them. One of the benefits they get from living with humans is getting to collect used kleenex so they may enjoy human nasal mucus, which they consider a treat better than any candy.
Hoo boy. Nothing I love better than someone who thinks he’s right and the rest of the world is lying. :rolleyes:
You see, some of us don’t like eating bacteria or other bodily wastes. We prefer, actual, you know, food.
But there was a bf one of my friends had that spent one evening at my house picking things off of and out of various orifices of his and then tossing them about my living room. I imagine you’d be great pals. I didn’t see much of them after that. And I vacuumed. Many, many times.
Oh, I’ll go in for a pick if necessary, in private. I’d wager most of us do that from time to time. But, eating it? No way. It gets flung away, flushed or flicked into the trash (and occasionally affixed 'neath a desk); but never eaten.
And no, I’ve never chewed on scab either–I can’t even say the idea ever occurred to me, actually.