Similarities and differences between emphysema and chronic bronchitis, two conditions that fall under COPD

(Natural News) Chronic obstructive pulmonary disease (COPD) refers to a group of life-threatening diseases that severely affect the lungs, causing breathlessness, inflammation, airway obstruction and significant bronchial damage over time. Many of the chronic respiratory diseases classified under COPD are primarily caused by exposure to tobacco smoke, but they can also be exacerbated by factors such as air quality, existing cardiovascular…