Lung cancer is a common illness and a significant cause of morbidity and mortality among men. Primarily caused by smoking, it is estimated that 40 to 50 percent of lung cancers could be prevented if smoking were eliminated. However, Dr. Patil notes that in the last decade, many cases of lung cancer have been observed in non-smokers as well. Factors such as pollution, chemical exposure... https://sahyadrihospital.com/videos/how-does-lung-cancer-affect-the-body-lung-cancer-awareness/