explain about cancer???
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Cancer is a broad term. It describes the disease that results when cellular changes cause the uncontrolled growth and division of cells.
Some types of cancer cause rapid cell growth, while others cause cells to grow and divide at a slower rate.
Certain forms of cancer result in visible growths called tumors, while others, such as leukemia, do not.
Most of the body’s cells have specific functions and fixed lifespans. While it may sound like a bad thing, cell death is part of a natural and beneficial phenomenon called apoptosis.
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Answer:
Cancer: it is the uncontrolled growth of abnormal cells in the body.
Cancer develops when the body's normal control mechanism stops working.
Old cells do not die and instead grow out of control, forming new, abnormal cells.
These extra cells may form a mass of tissue, called a tumor.
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What causes cancer?
Answer:
biological or internal factors, such as age, gender, inherited genetic defects and skin type
environmental exposure, for instance to radon and UV radiation, and fine particulate matter.
occupational risk factors, including carcinogens such as many chemicals, radioactive materials and asbestos.
lifestyle-related factors.
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Cancer,is a also called malignancy, is an abnormal growth of cells.
There are more than 100 types of cancer, including breast cancer, skin cancer, lung cancer, colon cancer, prostate cancer, and lymphoma. Symptoms vary depending on the type.
Cancer treatment may include chemotherapy, radiation, and/or surgery.
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