B7: Non-Communicable Diseases


B7.1: Non-Communicable Disease

  • a non-communicable diease cannot be passed from one individual to another. 
  • risk factors are aspects of one's lifestyle or substances in the body or environment that have been shown to link to an increased rate of disease.
  • for some non-communicable diseases a causal mechanism has been proven for some risk factors. 
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B7.2: Cancer

  • benign and malignant tumours result from abnormal and uncontrolled cell division.
  • benign tumours form in one place and do not spread ot other tissues.
  • malignant tumour cells are cancers and invade neighbouring tissues. they may spread to different parts of the body through the blood and create secondary tumours.
  • lifestyle risk factors for various cancers include smoking, obesity, common viruses and UV exposure. there are also some genes that genetically predispose someone to a cancer.
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B7.3: Smoking and the Risk of Disease

  • smoking can cause cardiovascular disease like coronary heart disease, lung cancer and lung dieases like bronchitis and COPD.
  • a fetus exposed to smoke has restricted oxygen and can lead to premature birth, low birthweight and stillbirth. 
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B7.4: Diet, Exercise and Disease

  • diet affects your risk of developing cardiovascular and other diseases directly through cholesterol levels and indirectly through obesity. 
  • exercise levels affect the likelihood of developing cardiovascular disease.
  • obesity is a risk factor for developing type 2 diabetes. 
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B7.5: Alcohol and Other Carcinogens

  • alcohol can damage the liver and cause cirrhosis and liver cancer.
  • alcohol can cause brain damage and death.
  • alcohol taken in by a pregnant woman can affect the development of her unborn baby (Fetal Alcohol Syndrome)
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really helpfull! Thank You !!!

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