The intensity of a workout refers to
a. how much sweat is lost during the workout.
b. how many times per week a person exercises.
c. how strenuous the workout is.
d. which type of activity a person does for exercise.

the heart-damaging chemical found in the blood that's associated with long-term depression is
a. adrenaline.
b. neurotransmitters.
c. homocysteine.
d. endorphins.

if you skip the cool-down portion of exercise,
a. you won't be able to work out the next day.
b. blood can pool in the exercised parts of the body and diminish the return of blood to the heart.
c. you run the risk of gaining weight.
d. you can work out in less time.

. it's believed that cardiorespiratory exercise can prevent heart disease because
a. it to thin the blood.
b. once the body gets stronger, it no longer absorbs saturated fat.
c. many studies have linked cardiorespiratory exercise to the lowering of blood pressure.
d. once a person starts exercising, he or she can eat anything.

the correct frequency of exercise in order for it to be effective is
a. at least seven times per week.
b. a maximum of eight times per week.
c. at least twice a day.
d. a minimum of three to five times per week.