Final answer:
Lowering blood pressure without affecting heart rate is important for managing hypertension and reducing the risk of cardiovascular diseases like heart attack and stroke.
Step-by-step explanation:
The purpose of lowering blood pressure without affecting heart rate is primarily to manage hypertension and reduce the risk of all types of cardiovascular disease, including heart attack and stroke. Lowering blood pressure helps to maintain proper blood flow to the brain and other organs, preventing potential damage to blood vessels and reducing the strain on the heart.