"We found that metabolites associated with mucus hydration and adenosine metabolism were strongly associated with markers of COPD disease severity. These findings confirm previous studies implicating ...

Coughing up white mucus can mean you have congestion with a respiratory infection such as bronchitis, or it can be a symptom of long-term health issues like chronic obstructive pulmonary disease (COPD ...

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 ...