A Brief Look Into Cancer
The abnormal growth of cells in parts of the body is what is defined as cancer. The brain, the lungs and even the breasts may all be affected by cancer. The article will deal with the likely causes of two dissimilar types of cancer and their probable causes. While all cancers share heredity as a major causal factor, there are other different causes of cancer which depend on the type of cancer.
The causes of cancer are unknown. However, heredity is one major cause of cancer. It is well known in the medical profession that incidences of cancer in the family place one at a higher risk of suffering from the same. This is true for most cancers. Examples of cancers that are hereditary are brain and ovarian cancer. Another major cause of cancer is prior history. Survivors of cancer are more at risk of developing the cancer again. But, there are certain other factors that are the causes of different types of cancers. These factors may be related to the external environment of the victims.
Cancer is again attributed to air pollution and smoking. Still, radiation and sunlight are also said to result in cancer. In the United States the most common form of cancer is lung cancer which is as a result of cigarette smoking. Of the lung cancer cases that have been reported in the US, cigarette smoking is responsible for 90% of them. Those affected the most are the active smokers. However, a 24% probability exists for passive smokers to also develop lung cancer. Conversely, 1% of cases linked to lung cancer are said to be caused by air pollution. Vehicle, power plant and industrial emissions are said to be the major air pollutants, the causes of lung cancer.
Certain cancers are linked to the victim’s personal situation. For instance, hormones are likely causes of breast cancer in women. According to studies, women who start their menses much earlier and their menopause much later in life are likely to develop breast cancer. Concurrently, women who after menopause use hormone replacement therapy are also at risk of developing the disease. There is also the argument that birth control pills may cause breast cancer. Nonetheless, there is no concrete evidence in support of this.
Factors such as heredity and prior history with the disease are said to be the principal causes of cancer. However, particular cancers have particular causes. Consequently, breast cancer may be said to occur as a result of the use of hormone replacement therapy, hormones and even the use of birth control pills. Conversely, lung cancer is said to be caused by smoking and air pollution.





















