Mucus, a fluid in your upper respiratory system, is usually clear. But a number of health conditions can cause it to turn brown. Also known as brown phlegm or sputum, brown mucus can be due to a range ...

Your body produces mucus naturally to protect your respiratory system, and under normal circumstances, this protective fluid remains clear and relatively thin. However, when mucus suddenly changes to ...

It’s never any fun feeling under the weather, but when a common cold is paired with excess phlegm, it makes matters even worse. This can lead to irritating symptoms, such as coughing, a sore throat, ...

Chronic obstructive pulmonary disease (COPD) affects approximately 29 million people in the U.S. and is the fourth leading ...

Any pain in the chest area that lasts longer than a month can be a sign of a serious lung condition, such as lung disease. A thing to be on the lookout for, according to Villalona-Calero, is “chest ...

Coughing up blood is usually a cause for concern and should be addressed immediately. Serious conditions that may cause you to cough blood are lung cancer and congestive heart failure. Seek emergency ...

In a lab study, scientists have pinpointed a potential way to "break the inflammatory cycle" of asthma. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Breathing disorders are common in the U.S. with conditions like COPD affecting some 7% of the population and asthma affecting another 10%. Digestive conditions like GERD, acid reflux, Celiac disease ...

Dupilumab reduces mucus plugging and improves lung function in patients with moderate-to-severe type 2 asthma.