health and disease

• what does it mean by health?

  physical and mental wellbeing
• factors for good health?

  balanced diet, getting enough exercise and sleep
• factors for bad health?

  poor diet and stress etc.
• what is a disease?

  condition that causes ill health
• communicable disease?

  disease that can be spread from person to person
• examples of communicable disease?

  chicken pox, malaria etc.
• non-communicable disease?

  a disease that can't be spread from person to person
• examples of non-communicable disease?

  cancer, asthma, CHD
• whats the role of our immune system?

  detect and destroy pathogens
• lifestyle risk factors for non-communicable disease?

  obesity -> diabetes and heart attacks
• environmental risk factors for non-communicable disease?


  smoking -> lung cancer