Mucus, you fickle fiend—usually, you’re there keeping us safe from whatever nasties sneak inside of us. But then you turn, becoming a source of discomfort, canceled plans, and overall malaise. How I ...

Even if it is kind of gross when you're full of it and wrestling with it, phlegm actually serves a useful purpose: The thick, sludgy substance—made up of mostly water, salt, and antibodies—is designed ...

Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Having a congested chest can be uncomfortable to say the least. And when you’re feeling under the weather ...

Barking out a loud cough in the middle of a big meeting or on a quiet train car is enough to make you want to be invisible. But trying to stifle your cough is way worse than dealing with any possible ...

FOR some people, it starts with a scratchy throat followed by a tickly cough. For others, a headache comes first, before a ...

Mucus is a perfectly normal fluid that helps to keep our bodies running smoothly, but not all forms of the slimy substance are created equal. People with chronic respiratory diseases tend to produce ...

A study analyzes the physical properties of airway mucus that can contribute to the failure of coughing to clear mucus in respiratory disease, and suggests that mucus hyperconcentration associated ...

Healthy phlegm is usually clear and runny, but many different health conditions can change the consistency or color. Phlegm, also called sputum, is mucus produced by your lungs that helps protect your ...

New insights into the molecular mechanisms driving mucus viscosity were have been discovered. A discovery about how mucus thickness is regulated could help to improve airway-clearing treatment options ...