Dear Science: What's the point of mucus?
January 9, 2017
Dear Science,
It's that time of year. My nose is stuffed up, and I can't pronounce the letter "n," and I have to know — snuffle — what's the deal with mucus? What is it? Why is it so slimy? Why is there so much of it? What's the — sniff — point? Read More.