COPD is also referred to as chronic obstructive pulmonary disorder. COPD is a progressive condition that affects the lungs and will continue to worsen as time passes. It is aggravated by smoking, airborne contaminants, and allergens. Constant exposure to these types of irritants can cause the condition to worsen at a much faster rate than if the person would avoid them. COPD is sometimes used in relation to other lung diseases, like emphysema, asthma, and chronic bronchitis. The main symptom associated with COPD and other conditions similar to it is breathlessness. The inability to draw in a full breath may be the most accurate description of what a person feels like who has COPD.