Upon hearing the verdict of cancer, many people seemed to hear the death knell. Cancer is the disease claimed the most superior in age because the abnormal cells that grow out of control can be spread throughout the body and damage the normal cells around it.
Currently there are at least about 200 types of cancer. However, the characteristics of all cancers are the same, namely the growth and spread of abnormal cells uncontrolled. Why cancer can develop in a person and not on others, it is not yet fully know.
The researchers speculate, 5-10 percent of cancers may be inherited. That is, the disease is inherited by one generation to the next generation through genes that are not normal. However, in most cases, the cancer develops through a complex series of steps that often include excessive exposure due to carcinogens (cancer causing substances), such as tobacco or sun .
carcinogens is believed to cause the formation of free radicals, which can damage the strands of DNA molecules carrying information on reproduction. Once there is DNA damage, cancer cells can form . Therefore, one way to prevent cancer is to reduce exposure to anything that stimulates the formation of free radicals, including fat-rich foods, tobacco, and alcohol .
Cancer can develop in several forms, namely:
Carcinoma.
This is a cancer that originates, whether from outside or within the body surface, such as skin cancer and colon cancer.
sarcomas.
Sarcoma is cancer that develops in the supporting tissues of the body, such as bone and muscle.
Lymphomas.
Called lymphoma when the cancer came from the lymph glands or lymph nodes and the immune system.
Leukemia.
Leukemia derived from bone marrow and present in the bloodstream.
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