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Understanding Cancer Series-Part 24 (What Causes Cancer?)

Discussion in 'Oncology' started by waleed, Nov 27, 2011.

  1. waleed

    waleed Moderator

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    Most types of cancer become more common as we get older.

    This is because the changes that make a cell become cancerous in the first place take a long time to develop. There have to be a number of changes to the genes within a cell before it turns into a cancer cell.

    Cancer is often perceived as a disease that strikes for no apparent reason.

    While scientists don't yet know all the reasons, many of the causes of cancer have already been identified. Besides intrinsic factors such as heredity, diet, and hormones, scientific studies point to key extrinsic factors that contribute to the cancer's development: chemicals (e.g., smoking), radiation, and viruses or bacteria.

    cancer-causes.jpg

    Source 1:CancerHelp UK Homepage : Cancer Research UK : CancerHelp UK
    Source 2:Comprehensive Cancer Information - National Cancer Institute
     

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  2. rabab froja

    rabab froja Famous Member

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    for now the real cause to cancer is not apparent but one day it will be revealed :) i hope so
     

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