Now that we’re in the thick of cold and flu season, many of us are getting more up close and personal with nasal mucus, or snot, than we’d like. But did you know that snot color can actually tell you a lot about your health? Because of its role in the body, snot can take on different colors depending on how it adapts to what’s going on in your body. That’s why it’s actually a good thing to take a look at what’s in your tissue.