Smokers are being urged not to dismiss the early signs of a debilitating disease as simply a smoker’s cough.
In a new campaign, Public Health England says too many smokers remain unaware of the risks of chronic obstructive pulmonary disease (COPD).
COPD, which narrows the airways, can leave people struggling to do simple tasks such as climbing stairs.
Figures show more than 1m people in England are living with it, with nine in 10 cases caused by smoking.
COPD is actually the umbrella term for a number of serious lung conditions including chronic bronchitis and emphysema.