Snot plays a powerful role in protecting us from disease – and its colour alone can provide insights into what's going on in ...

"Persistent headaches. A family member had headaches that became migraines, then blurry vision, then paralysis on the left ...

Nasal mucus - simply known as snot - essentially acts like a shield to keep out harmful germs while also letting in things the body needs, such as oxygen and nutrients.

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

Steam inhalation can help open the nasal passages and get relief from the symptoms of a cold or sinus infection. Learn about the benefits and risks.

Sinus pain and headaches can be symptoms of the common cold, allergies, or sinusitis. Learn how to relieve sinus pressure and pain instantly, with methods including hot compresses and spicy foods.

Here's everything you need to know about Season 33 of TUF. From how to watch, the coaches involved and the fighters competing for a UFC contract.