What causes COPD (Chronic Obstructive Pulmonary Disease)
Smoking tobacco is the most common cause of COPD. Other factors such as air pollution and genetics play smaller roles. Typically these exposures must occur over several decades before symptoms develop.
Smoking tobacco - This is the most common cause of COPD. Twenty per cent of smokers will develop COPD. Among lifelong smokers, about half will develop COPD. Women are more susceptible to the harmful effects of smoke than men. …