In TODAY.com's Expert Tip of the Day, a doctor reveals the important clues about your health that can be found in your snot.

When you're sick you'll often produce more phlegm, and might notice it's thicker or a different color: white, green, yellow or maybe even brown. We all produce mucus, even when healthy. Mucus is a ...

Crushing your mile time or hitting a new max during a set of deadlifts calls for a celebration. Unfortunately, for some people, this post-workout time is spent ridding their body of excess phlegm.

Lynn Nazareth does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...