Tobacco smoke tends to more severely irritate the smaller pathways, which makes it a common cause of chronic bronchitis, emphysema, and cancer.
Kagwayi umusi ivame kakhudlwana kakhulu obungamcasula imigudu amancane, okwenza kube yimbangela ejwayelekile of chronic ukucinana kwemigudu yokuphefumula, emphysema kanye nomdlavuza.