UNDERSTANDING LUNG CANCER
Lung cancer usually begins in the bronchi and the alveoli. These are the target areas because when we breathe in, air enters through our nose or mouth. Then, it travels through the windpipe (trachea), into the bronchi and bronchioles. The oxygen we breathe in then moves into the alveoli, where it’s exchanged into the carbon dioxide we breathe out. This is the reason behind the common association between lung cancers and active smoking. Research by the American Cancer Society shows 87% of lung cancers are caused by smoking.