Which drug exerts its effect by inhibiting the activity of monoamine oxidase leading to increases in epinephrine, norepinephrine, dopamine and serotonin?

answer: i would say the brain but it seem that you have a brain.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.