A new study has revealed that lung cancer is still the top cause of CANCER RELATED DEATHS in the US, with both men and women still at risk. The study is focusing on new risk factors, particularly for people who have never smoked. The main risk factor is smoking, a leading indicator for lung cancer, with other factors such as RADON. RADON can also contribute to the disease. The best way to detect LUNG CANCer early is through a quick and easy LUNCER SCREENING SCAN. There are also several potential symptoms, such as unexplained weight loss, unexplained asthma, and unexplained unexplained activity.