COPD is a group of lung diseases that can get worse over time. This condition may affect your lungs and other parts of your body, leading to difficulties breathing, coughing, and wheezing.

Introduction. Chronic obstructive pulmonary disease (COPD) is a common respiratory condition, affecting 4.5% of people over the age of 40 in the UK. The British Lung Foundation estimates 1.2 million ...