What Is Lung Cancer? Signs, Causes, Medical Care, and Prevention.
What Is Lung Cancer? Lung cancer is a type of cancer that begins in the lungs, which are the two spongy organs located in the chest responsible for gas exchange—bringing oxygen into the body and removing carbon dioxide. Lung cancer is one of the most common cancers worldwide and is a leading cause of cancer-related deaths. It primarily affects older adults, although younger individuals can also be diagnosed.There are two main types of lung cancer: non-small cell lung cancer (NSCLC)...