Final answer:
Age is a non-modifiable risk factor for atherosclerosis, in contrast to diabetes, exercise level, and dietary preferences which can all be modified to reduce the risk of cardiovascular diseases.
Step-by-step explanation:
The nurse is instructing the patient on the risk factors associated with atherosclerosis. Among the risk factors listed, age is one that cannot be modified to reduce the risk of developing cardiovascular diseases. Other modifiable risk factors include managing diabetes, improving one's exercise level, and making healthier dietary preferences. While diabetes is a controllable risk factor if properly managed, age is a non-modifiable risk factor, as everyone ages regardless of lifestyle choices or interventions.
Ways to modify risk factors and prevent cardiovascular disease include quitting smoking, engaging in regular physical activity, adopting a healthy diet, and managing blood lipid levels through various interventions. Despite genetic predispositions, lifestyle changes can significantly reduce the risk of cardiovascular disease. However, as we age, the risk for cardiovascular diseases increases, a fact that cannot be changed.