Even at a late stage of the disease , it can reduce the rate of worsening lung function and delay the onset of disability and death .
In those who smoke , stopping smoking is the only measure shown to slow down the worsening of COPD .
Even at a late stage of the disease , COPD can reduce the rate of worsening lung function and delay the onset of disability and death .
In those who smoke , stopping smoking is the only measure shown to slow down the worsening of COPD .