Lung cancer is a type of cancer that begins in the lungs. It is the leading cause of cancer-related deaths worldwide, with smoking being the primary risk factor for developing the disease. Lung cancer can be either non-small cell lung cancer (NSCLC) or small cell lung cancer (SCLC), each with different subtypes and treatment options. Research in lung cancer focuses on understanding the causes of the disease, developing new treatments, improving early detection methods, and exploring ways to prevent and manage the disease. This includes studying the genetics of lung cancer, exploring immunotherapy options, and conducting clinical trials to test new drugs and treatment approaches. Overall, the goal of research in lung cancer is to improve outcomes for patients by developing more effective and personalized treatment strategies.