Definition: Cancer results from changes in the cell cycle, leading to uncontrollable growth and division, forming tumors that can be either benign or malignant.

Example: Smoking can lead to various cancers including lung, mouth, bowel, stomach, and cervical cancer.

Highlight: Cancer risk factors include both lifestyle choices (smoking, obesity, UV exposure) and genetic predisposition.

Vocabulary: Metastasis - the spread of cancer cells to other parts of the body through blood and lymph vessels.

Quote: "Cancer cells divide more rapidly and have a longer life."

Definition: Health is defined as a state of physical, social, and mental well-being, not merely the absence of disease.

Highlight: Non-communicable diseases are not infectious but can be influenced by risk factors including lifestyle choices, environmental conditions, and genetic predisposition.

Example: Diet directly impacts both mental and physical health, potentially leading to conditions like type 2 diabetes and obesity.

Vocabulary: Causal mechanism - the scientific explanation of how one factor influences another.

Quote: "Human and financial costs of diseases are high - huge numbers of people die from non-communicable disease each year, affecting their family and local community emotionally and financially."