COPD is Chronic obstructive pulmonary disease, which a chronic disease and causes symptoms
of cough, breathlessness and wheezing.
The commonest cause for COPD is
smoking.
The lungs age with smoking as in comparison to the person’s age. If you stop smoking at this point, the lungs are not damaged any further, though the damage that has already been done cannot be reversed. So, giving up smoking would be first step towards controlling COPD.