Final answer:
Cardiovascular endurance exercises should be done for at least 60 minutes per day for moderate intensity exercise and 1-3 hours per day for high intensity exercise. Regular aerobic activities, such as cycling or basketball, can help build up endurance and make the heart stronger. Studies have shown that even 30 minutes of noncontinuous exercise each day can have beneficial effects and lower the rate of heart attack.
Step-by-step explanation:
Cardiovascular endurance exercises should be done for at least 60 minutes per day for moderate intensity exercise and 1-3 hours per day for high intensity exercise. Regular aerobic activities, such as cycling or basketball, can help build up endurance and make the heart stronger. Studies have shown that as little as 30 minutes of noncontinuous exercise each day can have beneficial effects and lower the rate of heart attack.