Final answer:
Heart disease is primarily caused by a combination of genetic factors and lifestyle choices. Having a family history of cardiovascular disease increases the risk, while poor diet and lack of exercise also contribute to the development of heart disease.
Step-by-step explanation:
Heart disease, including conditions such as arteriosclerosis and atherosclerosis, is primarily caused by a combination of genetic factors and lifestyle choices. Genetics, including a family history of cardiovascular disease, increase the risk of developing heart disease. Lifestyle choices such as having a poor diet and lack of exercise also contribute to the development of heart disease.