What is coronary heart disease?
layers of fatty material that build up inside the coronary arteries narrowing them - resulting in a lack of oxygen for the heart
What is a stent?
a device inserted into a blocked artery to keep it open, allowing more blood and oxygen to the heart
Define health.
state of physical and mental well-being
What factors can affect health?
disease, diet, stress, exercise, life situations
What is a risk factor?
Aspect of lifestyle or substance in the body that can
increase the risk of a disease developing
Give five risk factors.
poor diet, smoking, lack of exercise, alcohol,carcinogens
What is cancer?
a result of changes in cells that lead to uncontrolled
growth and cell division by mitosis
What are malignant tumours?
cancerous tumours that can spread to neighbouring
tissues and other parts of the body in the blood, forming secondary tumours
What are benign tumours?
non-cancerous tumours that do not spread in the body
What two types of risk factor affect the development of cancers?
lifestyle and genetic risk factors
What is a carcinogen?
a substance that can cause cancers to develop
