Sabtu, 16 April 2011

Causes of Cancer

Cancer is a class of disease characterized by out-of-control cell growth. With more than 200 different types of cancer, one can develop it in virtually any organ of the body. Research states that there are more than 60 different organs in the body where cancer can develop.

Typically, one form of cancer will develop in certain areas of the body. However, since cancer can develop from almost any type of cell, it is also possible that more than one type of cancer can develop in any one part of the body. For example, one can develop pleural mesothelioma or pericardial mesothelioma, two different types of cancer, even though they both form in, and around, cardiac muscles.

Ultimately, cancer is the result of cells that grow uncontrollably and do not die. Whereas normal cells in the body go through life stages of growth, division and death, cancer cells do not complete this cycle. Programmed cell death is called apoptosis, and when this process begins to weaken, cancer can form. Since cancer cells do not die, they continue to grow and divide, causing a mass of abnormal cells to develop, eventually causing cancer.

Cancer is a complex group of diseases with numerous causes. Genetic factors, smoking, diet and physical activity, certain infections and exposure to different types of chemicals and radiation, such as asbestos, are all linked to the development of cancer.

In this section, one can learn more about the known causes of cancer and educate themselves on how to better prevent this disease from developing in themselves or their loved ones.

Genetics and Cancer: Some types of cancer are known to run in certain families’ histories. However, most cancers are not linked to genes. Therefore, one does not literally inherit the disease from their parents. This section uncovers the links between genes and cancer, as well as genetic testing and how it is used.

Tobacco and Cancer: This section relates tobacco usage with cancer and provides resources for those interested in quitting smoking. It also touches on the synergistic effects of smoking and exposure to asbestos.

Diet and Physical Activity: Learn how diet, physical activity, lifestyle choices and alcohol use may affect one’s risk of developing cancer.

Sun and UV Exposure: This section connects excessive sun exposure to cancer. It also provides resources and ways to protect oneself from harmful UV rays.

Other Carcinogens: Some environmental causes may be lurking in one’s home or at work. This section helps individuals understand and identify possible pollutants in the air.


American Cancer Society

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