Everyone experiences boogers (dried phlegm) daily. They may seem gross, but boogers are an essential part of your body's immune system. But what are boogers made of and where do they come from?

Add Yahoo as a preferred source to see more of our stories on Google. It's that time of year again, when everyone's fighting a cold and blowing their nose. Maybe you've found yourself having sinus ...

But, you know, while I have you here, let's talk about boogers. Why do we have boogers inside our nose? There are lots of different kinds of boogers with various shapes, colors, and textures. And ...