health is a state of physical and mental well-being, not just an absence of disease
non communicable disease = not infectious, can't be passed from one organism to another
diseases from not getting enough to eat: starvation , anaemia, rickets
diseases from eating too much: diabetes , obesity, cancer, coronary heart disease
stress induced diseases: heart disease , certain cancers, mental health problems
7 life situations that have an effect on health: location, gender, financial status, ethnicity, healthcare provision, number of children, sewage and rubbish