2. OCR AS Biology Unit 2 Module 2: Food and Health
Health and Disease
OCR AS Biology
Unit 2
Module 2: Food and Health

3. Learning Outcomes
Discuss what is meant by the terms health and disease
Define and discuss the meanings of the terms parasite and pathogen

4. What is health? “health is more than just the absence of disease”
What is meant by health?
What is meant by disease?
Health
absence of disease
Disease
disorder of a systems normal functions

5. What is health? You have been given 6 case studies In your groups
discuss the health of each individual
Rank them from 1 – 6
1 healthiest
6 unhealthiest
Remember you must be able to give reasons for your choices

6. Definitions Health Disease
A state of complete physical, mental and social well-being, which is more than just the absence of disease.
Disease
A problem with mind or body leading to a departure from good health.

7. Good Health Free from disease
Able to carry out mental and physical tasks expected by society
Well fed, balanced diet
Housing and sanitation
Happy and positive outlook
Well integrated into society

8. The Health Triangle Physical health means the health of the body
Mental health means the health of the mind.
Social health means forming good relationships.

9. The Health Triangle Physical Social Mental
If you take any of these away - the triangle collapses

10. What is health? In your groups Go back to the original 6 case studies
Have your opinions changes
Rank them from 1 – 6
1 healthiest
6 unhealthiest
Remember you must be able to give reasons for your choices

11. Disease
There are nine broad overlapping categories of disease (see handout)
Diseases can also be grouped into
Single cause e.g. malaria
Multifactorial e.g. heart disease

12. Disease
Acute
Sudden rapid changes and lasting for a short time
Chronic
Long term – debilitating
Develops slowly and persists