Me ..
if miguel performs cardiovascular exercise, he burns a lot of calories because
he is using his large muscles
his body heats up
he is performing low intensity exercise
he eats less

ANSWER:

When Miguel performs cardiovascular exercises, he burns more calories as he is using large muscles. Cardiovascular exercises are the exercises that raise the heart rate.

EXPLANATION:

Cardiovascular exercises are undertaken to exercise the heart and the lungs. These can be high intensity as well as low intensity exercises that help people burn a lot of calories.

The cardiovascular exercises like walking, swimming, jogging, cycling and rowing involve the use of large group of muscles and therefore more calories can be burnt.