Health and disease

• What is the definition of health?

  A state of physical and mental wellbeing
• Definition of disease?

  Conditions that can cause ill health
• Examples of communicable disease

  • Cold
  • malaria
  • meningitis
  • measles
  • coronavirus
  • salmonella
  • tuberculosis
  • HIV / AIDS
• Examples of non-communicable disease :

  • Asthma
  • coronary heart disease
  • diabetes
  • canacer
  • strokes
  • lung disease
  • heart disease
• What is a risk factor

  increases the chance that a person will develop a certain disease
• What is being exposed to air pollution a risk factor for?

  Lung cancer
• What is bronchitis ?

  Inflammation of airways in the lungs
• what is COPD ?


  Chronic Obstructive Pulmonary Disease..

  • Irreversible lung damage

  What is the primary risk factor?

  • smoking

  What are the other 2 illnesses associated with the disease?

  • Bronchitis - inflammation of the bronchi
  • Emphysema - damage to the alveoli walls
• What are tumors ?

  Abnormal mass of cells that forms when a group of cells undergrow uncontrolled growth and division
• What are the 2 types of tumors?

  1. Benign
  2. Malignant
• What do malignant (cancer) Tumors do?

  Spread to other parts of the body and damage tissues. They can be fatal
• Risk factors for cancer

  • Smoking :

  Lung cancer, mouth cancer, cervical cancer, stomach cancer

  • Obesity

  Bowel cancer, liver cancer, kidney cancer

  • Ultraviolet light

  Skin cancer

  • Drinking alchol
  • Liver cancer
• Benigin tumours


  Are contained in one area, in a membrane