Chronic Obstructive Pulmonary Disease.  A generic term used for a long term illness associated with the lungs – e.g., Asthma, Emphysema, Bronchitis etc.  Patients with COPD usually present with difficulty in breathing (DIB) and are a high percentage of our call-outs.  Smoking is a massive influence to this condition – I reckon if we could take the general public round with us sometimes to visit the folk who are COPD due to smoking, it would probably turn things around.