How does aerobic exercise help prevent cardiovascular diseases?








A.

It helps you burn more calories, which reduces plaque in the arteries, so that your heart becomes more efficient at pumping blood.

B.

It warms your blood, making it more fluid, so that your heart can pump more efficiently and slowly, creating less stress on the heart.

C.

It makes your heart beat faster to supply more oxygen, which makes the heart stronger and enables it to pump blood more efficiently.

D.

It lowers your blood pressure, which allows your heart to better dispose of fat cells before they form plaque on the artery walls.






A.

Leslie enjoys playing video games but does not like outdoor sports.

B.

Jackie is on the gymnastics team and enjoys helping her father in the garden.

C.

Ted regularly helps around the house but he does not like outdoor activities.

D.

Kyle does not play any outdoor sports but takes a brisk 30-minute walk every day.