If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust.

This cold and flu season, you may be looking for clues you're getting better anywhere you can find them, even in the color of ...

This pressure can cause mucus to shoot up into your sinuses, instead of out of your nose. When you're sick, that mucus may contain viruses or bacteria. If the bacteria or virus gets into your ...

When you are sick, your body signals your immune system to fight it off. The response can cause a fever and body aches.

But only when the girl had a good, hearty sneeze did the truth come out: she had a safety pin lodged in her nose. SEE ALSO: Scott Walker's weird hand photo is creeping out the Internet Watch video ...