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  • cancer
    • the result of changes in DNA that lead to uncontrolled growth and division
    • benign tumour
      • contained in one area of the body (usually by a membrane)
      • not cancer
    • malignant tumour
      • invade tissues and spread to different parts of the body to form secondary tumours
    • some cancers have genetic risk factors
    • carcinogens and ionising radiation increase the risk of cancer by changing/ damaging DNA
    • risk factors for heart and lung disease and certain types of cancer include:
      • alcohol
      • dietary issues
      • obesity
      • smoking
      • these risk factors can also affect the brain, liver and the health of unborn babies


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