health

• What is health defined as

  The state of physical and mental well- being
• what are communicable diseases spread by

  pathogens such as bacteria or viruses
• what is ill health caused by

  • communicable and non- communicable diseases
  • poor diet
  • high levels of stress
• who is more likely to suffer from infectious disease

  someone with a defective immune system
• what can viruses living in cells be the trigger for

  cancers
• what causes allergies like skin rashes and asthma

  immune reactions initially caused by a pathogen
• what can severe physical ill health lead to

  depression and other mental illness