#Phlegm

Author: Bethany Brookshire / Source: Science News for Students Most people are familiar with phlegm. It’s the gunk you might cough up when you have a cold or the flu. This mucus is not pretty. But as long as it keeps moving, it does a body good. With certain diseases, though, phlegm becomes too

Author: Bethany Brookshire / Source: Science News for Students Mucus. You hack it up. Spit it out. Blow it into tissues and throw it away. But while it’s gross once it leaves the body, mucus, phlegm and snot play important roles inside us. Part of the immune system, the role of this sticky goop