
(HealthDay News) -- Chronic obstructive pulmonary disease (COPD) is an umbrella term that includes lung diseases such as persistent bronchitis or emphysema.
The National Heart, Lung, and Blood Institute says common warning signs of COPD may include:
Sleepy Nurses Vulnerable To Common Cold, Other Infectious Diseases
Experimental Nasal Spray Might Ward Off Multiple Viruses
Can Zinc Really Shorten a Cold?