Health, lifestyle and cancer

The idea

Health is a state of physical and mental wellbeing. Non-communicable diseases are linked to risk factors such as diet, smoking, alcohol and lack of exercise: smoking increases the risk of lung disease and cancer, obesity of type 2 diabetes, and alcohol of liver damage. Cancer is uncontrolled cell division. Benign tumours stay in one place; malignant tumours invade tissues and spread in the blood to form secondary tumours.

1. Identify the risk factor.
2. Link it to a disease.
3. Remember correlation does not prove cause.

Watch out A correlation between a factor and a disease does not prove that the factor causes it.