Tires and degrading garbage shed tiny pieces of plastic into the air, creating a form of air pollution that UC San Francisco ...

A discomforting, thick mucus in your throat and chest is a common symptom of respiratory viruses such as the flu. The mucus ...

Try saline spray. Saline sprays can also help loosen mucus and move it out of your sinuses, per Kelley. Take a steamy shower.

A great deal can be learned about the lungs' mechanical properties from measurements of forced maximal expiration and inspiration. The spirometer (built-in 1846 by Hutchinson) measures ventilatory ...