Lung cancer is a type of cancer that starts in the cells of the lungs. The lungs are two spongy organs in the chest that take in oxygen when you inhale and release carbon dioxide when you exhale. Lung cancer is the leading cause of cancer deaths worldwide, accounting for a significant portion of cancer-related mortality.

There are two main types of lung cancer: non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). NSCLC is the more common type, representing about 85% of all lung cancers, while SCLC is a more aggressive form that tends to spread quickly. It’s important to note that any persistent respiratory symptoms should be evaluated by a healthcare professional. Early detection and intervention can significantly improve outcomes for individuals with lung cancer.