Don't smoke. Breaking the tobacco habit may be difficult, but it can be done. While preparing to quit, cut back on the number of cigarettes smoked daily. Many people report that stopping cigarette smoking "cold turkey" is more effective than gradually tapering off. Joining a support group may help you maintain the resolve to quit.
If you live or work with smokers, encourage them to quit and ask them not to smoke around you. If there is potential exposure to cancer-causing chemicals at work, take necessary safety measures to limit inhalation.
Malignant non-small cell epithelial tumors of the lung are classified by the World Health Organization (WHO)/International Association for the Study of Lung Cancer (IASLC). There are three main subtypes of non-small cell lung cancer (NSCLC), including the following:
Squamous cell carcinoma (25% of lung cancers).
Adenocarcinoma (40% of lung cancers).
Large cell carcinoma (10% of lung cancers).
There are numerous additional subtypes of decreasing frequency.