History of Cancer and radiation
Lit
2 May 2013 History of Cancer: Radiation There is a broad group of different types of cancers and they all have a wide range of causes. Each cancer is different according to its biology and pathophysiology. Cancer is a very broad topic but chose four topics that show that radiation is the main cause of cancer. Before I can prove radiation is the cause of cancer, there needs to be an introduction as to what cancer is and how it spreads. After showing what cancer is, the next thing to talk about is what did people think caused cancer before scientist and technology got a better grasp of the causes. My third topic is radiation and the different types and how they are big risks for getting cancer. My last topic is the treatment of cancer and how we developed the treatments. Cancer is a term used for diseases in which abnormal cells divide without control and are able to invade other tissues. In the human body, normal body cells grow, divide, and die. While the person is a child, normal cells divide faster to allow the person to grow. When the person becomes an adult, most cells divide only to replace worn-out or dying cells or to repair injuries. This unfortunately is not the case for cancer patients because instead of the cells dying and repairing, the cells start to grow abnormally and multiply. Cancer cells can also invade other tissues, something that normal cells cannot do. They grow out of control and invade other tissues and that’s what makes a cell a cancer cell. Cancer cells often travel to other parts of the body where they begin to grow and form new tumors. When the cancer cells get into the body’s bloodstream or lymph vessels. After the cancer cells get into the body’s bloodstream then tumors begin to replace normal tissue. The process of cancer spreading is called metastasis. The type of cancer is always named for the place where it started. An example of this would be
2 May 2013 History of Cancer: Radiation There is a broad group of different types of cancers and they all have a wide range of causes. Each cancer is different according to its biology and pathophysiology. Cancer is a very broad topic but chose four topics that show that radiation is the main cause of cancer. Before I can prove radiation is the cause of cancer, there needs to be an introduction as to what cancer is and how it spreads. After showing what cancer is, the next thing to talk about is what did people think caused cancer before scientist and technology got a better grasp of the causes. My third topic is radiation and the different types and how they are big risks for getting cancer. My last topic is the treatment of cancer and how we developed the treatments. Cancer is a term used for diseases in which abnormal cells divide without control and are able to invade other tissues. In the human body, normal body cells grow, divide, and die. While the person is a child, normal cells divide faster to allow the person to grow. When the person becomes an adult, most cells divide only to replace worn-out or dying cells or to repair injuries. This unfortunately is not the case for cancer patients because instead of the cells dying and repairing, the cells start to grow abnormally and multiply. Cancer cells can also invade other tissues, something that normal cells cannot do. They grow out of control and invade other tissues and that’s what makes a cell a cancer cell. Cancer cells often travel to other parts of the body where they begin to grow and form new tumors. When the cancer cells get into the body’s bloodstream or lymph vessels. After the cancer cells get into the body’s bloodstream then tumors begin to replace normal tissue. The process of cancer spreading is called metastasis. The type of cancer is always named for the place where it started. An example of this would be