why is physical activity so important in preventing heart disease?

Brief Explanations:

Physical activity strengthens the heart muscle, improves blood - vessel function, helps control weight, reduces blood pressure and cholesterol levels, and improves insulin sensitivity, all of which contribute to heart - health and prevention of heart disease.

Answer:

Physical activity is important in preventing heart disease as it strengthens the heart muscle, improves blood - vessel function, controls weight, reduces blood pressure and cholesterol, and enhances insulin sensitivity.