Sir, what are the main causes of cancer. How can we defence it. What are the remedies. Can you help me.
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Cancer Causes Certain genes control the life cycle ? the growth, function, division, and death -- of a cell. When these genes are damaged, the balance between normal cell growth and death is lost. Cancer occurs due to DNA damage and out-of-control cell growth. The following is a partial list of factors known to damage DNA and increase the risk of cancer: Genetic mutations (for example, BRCA1 and BRCA2) Environmental exposure to UV radiation, air pollution Bacterial (H. Pylori) and viral infections (Epstein-Barr, HPV, hepatitis B and C) Lifestyle choices (poor diet, inactivity, obesity, heavy alcohol use, smoking cigarettes and tobacco use, exposure to chemicals and toxins) Treatment with chemotherapy, radiation, or immunosuppressive drugs Cancer Treatment Cancer treatment is highly variable depending on the type and stage of a cancer as well as the overall health of the patient. The most common treatments for cancer are surgery, radiation, and chemotherapy. Other treatments include targeted/biological therapies, hematopoietic stem cell transplants, angiogenesis inhibitors, cryosurgery, and photodynamic therapy. Every cancer treatment has potential risks, benefits, and side effects. The patient and his or her care team, which may include an internist or other specialist, surgeon, oncologist, radiation oncologist, and others, will help determine the best and most appropriate course of treatment.
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