We've all seen it: a kid with one finger wedged up a nostril, mining the cavity for a golden nugget, teasing it out, and then gobbling it like a tasty snack. It may be gross to adults, but most children seem completely unfazed. So why do kids eat their boogers, and are they possibly onto something?
Most parents will tell you how common it is for children to eat their own mucus — a behavior known as "mucophagy" — yet data on its prevalence are scarce.
