Smoking cigarettes is a lifestyle choice that may lead to cardiovascular disease. Some people who have never smoked cigarettes still have cardiovascular disease.
Give two other factors that may contribute to the occurrence of cardiovascular
disease.

High blood pressure. High blood pressure (hypertension) is one of the most important risk factors for CVD.

High cholesterol - High-fat diet.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.