Cancer is considered by many a primarily genetic disease. However,what role does a lifestyle choice, such as smoking or a high cholesterol diet, play...

Cancer is considered by many a primarily genetic disease. However,what role does a lifestyle choice, such as smoking or a high cholesterol diet, play in the development of cancer?

Explain how a chronic disease like COPD has seen an increase in mortality compared to the more common communicable diseases seen throughout the world especially in underdeveloped nations.

proper citations.