Pathogens and Lifestyle

Pathogens
1. 1. Trasmitted
2. 2. Gain Entry
  1. Cuts
  2. Digestive System
3. 3. Evade Defences
  1. Stomach Acid, Lyoszyme enzymes and the Immune System
4. 4. Harm the Host
  1. a) Reproducing inside the cell
  2. b) Burtsing
  3. c) Producing Toxins
Diseases
1. Infectious
  1. Pathogenic organisms
  2. Cold
2. Dietary Deficiency
  1. Lack of specific nutrients
  2. Scurvy (Vit C)
3. Environmental
  1. Non-living factor
  2. Radiation = Skin Cancer
4. Social
  1. Human activities and Lifestyle
  2. Alcoholism
5. Ageing
  1. Degeneration of Body Tissue
  2. Arthritis
6. Genetic
  1. Genes inherited from parents
  2. CF
Lifestyle
1. Diet, Exercise, Work Environment, Drinking, Smoking
2. Risk = Probability of Event x Impact of Event
3. Relative Risk = Something that is compared to something else
  1. Lung cancer has the main risks of smoking and a clean environment
Identifying Risk Factors
1. 1. Correlation
2. 2. Correlation does not mean causation
3. Casual Relationships
  1. Need to be a controlled lab experiment
  2. You have to provide evidence for a casual relationship and you can say that the factor affects the disease, so its a risk factor

Resource summary

	Created by Rachel Lamond almost 10 years ago