b7 - communicable diseases

what is a non communicable disease

a disease that cannot be passed from one individual to anotehr

what are the risk factors for non communicable diseases

• lifestyle
  - if certain substances present in a person's body or environment

what is a causal mechanism

the scientific explanation of how a specific risk factor directly results in a particular disease

what is a correlation

a pattern / relationship that shows that 2 factors happen together but are not proven to cause each other

2 types of cancer

benign and malignant

benign vs malignant tumours

benign grow locally and do not grow. malignant tumours can invade tissues and spread to other organs

lifestyle risk factors for cancer

• smoking
  - obesity
  - common viruses
  - uv exposure
  - genetic risk factors

what is cancer

the result of changes in cells that lead to uncontrolled growth and division.

what can smoking cause

• cardiovascular diseases
  - lung cancer
  - bronchitis
  - COPD

what can fetuses exposed to smoke have as an effect

premature birth, low birthweight and still birth

what does diet affect your risk of developing

• cardiovascular disease
  - other diseases

what does exercise influence

lowers your chance of developing a cardiovascular disease

what is a risk factor for type 2 diabetes

obesit

what can alcohol do to the body

• damage the liver
  - cause cirrhosis
  - cause liver cancer
  - brain damage
  - death
  - fetus development