(Central Idea (Introduce topic and relate it to your audience) Lung cancer is the leading cause of cancer death. Over 1 million people haved died from lung cancer world wide. According to (Lung Cancer: Facts, Types and Causes 5 January 2016) More people have died from lung cancer then Colon cancer, breast cancer and prostate cancer. Lung Cancer is a very deadly diease and its important that you are informed. (Establish credibility (Personal experience or qualifying statement)) I’ve have done hours of research and have found many credible sources.(Preview of Main points with signposts) First i’ll discuss what lung cancer is. Second the two types of lung cancer and third the main causes of lung cancer (Transition) Use signpost (It’s okay if this is not a full sentence)BodyWhat is lung cancer? let me tell you. Lung cancer is the most frequently diagnosed cancer worldwide and the leading cause of cancer.(Labbé, C., Anderson, M., Simard, S., Tremblay, L., Laberge, F., Vaillancourt, R., & Lacasse, Y. 2017.) Lung Cancer is caused by uncontrolled growth cells that do not die. then after the normal cells grow into the body and divide and grow in a orderly path. When the death process of cells breaks down, cancer starts. In case of cancer, cells continue to grow and divide instead of having a programmed cell death which is call (apoptosis) which results in a bunch of abnormal cells growing out of control.(Namazi, H., & Kiminezhadmalaie, M. 2015)3. these abnormal cells do not develop into healthy lung tissue, they divide rapidly and form tumors. As these tumors become larger and more massive, they undermine the lung’s ability to provide the bloodstream as along with oxygen.Now that i’ve told you about what lung cancer is i’ll now explain the two different types of lung cancer Theirs two types of lung cancer thiers Primary Lung Cancer and Secondary Lung Cancer Primary lung Cancer originates inside the lungs caused by smoking or using the substances of tobcacco. while Secondary lung cancer originates outside of the lungs but travels to the lung and migrates in the lungs. B. From their there is two types of classification None Small Cell Lung Cancer ….. and Small Cell Lung Cancer…. NSCLC is compsoed into four types of cancer adenocarcinomas, squamous cell carcinomas, and large cell carcinomas. The most deadly one is large cell carcinomas. Small cell lung cancer is different from NSCLC because it almost always begins in the bronchi, the airways in the center of the chest, and it is rarely seen in people who do not smoke.Now that we have gone over what lung cancer is, and the begining stages of lung cancer, we will discuss the main causes of Lung Cancer. III. The two main cause of lung cancer Frist Carcinogens1.Carcinogens are a class of substances that are directly responsible for damaging DNA, promoting or aiding cancer.2.Tobacco, asbestos, arsenic, radiation such as gamma and x-rays, the sun, and compounds in car exhaust fumes are all examples of carcinogens.3. When our bodies are exposed to carcinogens, free radicals are formed that try to steal electrons from other molecules in the body. 4.These free radicals damage cells and affect their ability to function and divide normally. 5. 87% of lung cancers are related to smoking and inhaling the carcinogens in tobacco smoke. Even exposure to second-hand smoke can damage cells so that cancer formsSecond Genes 1. Cancer can be the result of a genetic predisposition that is inherited from family members. 2. It is possible to be born with certain genetic mutations or a fault in a gene that makes one statistically more likely to develop cancer later in life. 3.Genetic predispositions are thought to either directly cause lung cancer or greatly increase one’s chances of developing lung cancer from exposure to certain environmental factors.Signpost (We have discussed, gone over, examined etc…) It’s okay if this is not a full sentence. Conclusion Now That we have discussed whats lung cancer and the two types of lung cancer as well as the causes of lung cancer. You now have a better understanding how lung cancer is formed. you also know the differnce between primary and secondary lung cancer. you also know how deadly Carcingens can be as well as genes.