Describe the relationship between overall health and disease, and explain the complex biological interactions between different types of diseases.
Define health as the comprehensive state of physical and mental well-being.
Identify communicable and non-communicable diseases as major causes of ill health, and recognise other impactful factors such as poor diet, stress, and adverse life situations.
Explain how functional defects in the immune system increase an individual's susceptibility to infectious diseases.
Understand that certain viruses living and reproducing inside host cells can act as direct triggers for the development of cancers.
Describe how powerful immune reactions initiated by a pathogen can trigger subsequent allergies, including skin rashes and asthma.
Understand that severe physical ill health can often lead directly to depression and other mental illnesses.
Translate disease incidence information effectively between graphical and numerical formats.
Construct and critically interpret frequency tables, diagrams, bar charts, and histograms related to health data.
Use scatter diagrams to accurately identify and analyze correlations between two health-related variables.
Apply the statistical principles of sampling to scientific and epidemiological data to understand disease trends within populations.
