Students should be able to describe the relationship between health and disease and the interactions between different types of disease.
Health is the state of physical and mental well-being.
Diseases, both communicable and non-communicable, are major causes of ill health. Other factors including diet, stress and life situations may have a profound effect on both physical and mental health.
Different types of disease may interact.
- Defects in the immune system mean that an individual is more likely to suffer from infectious diseases.
- Viruses living in cells can be the trigger for cancers.
- Immune reactions initially caused by a pathogen can trigger allergies such as skin rashes and asthma.
- Severe physical ill health can lead to depression and other mental illness.
- Students should be able to translate disease incidence information between graphical and numerical forms, construct and interpret frequency tables and diagrams, bar charts and histograms, and use a scatter diagram to identify a correlation between two variables.
- Students should understand the principles of sampling as applied to scientific data, including epidemiological data.
Construct and interpret frequency tables and diagrams, bar charts and histograms,
Use a scatter diagram to identify a correlation between two variables,
Translate information between graphical and numeric form,
Understand the principles of sampling as applied to scientific data