Stimulants like amphetamines increase dopamine, norepinephrine, and epinephrine, leading to temporary increases in energy, focus, and alertness, followed by a proportional trough.

“you increase dopamine in norepinephrine and and epinephrine the so-called catacol means and you're going to increase energy focus and alertness but you're going to pay the price you're going to have a trough in energy focus and alertness that's proportional to how much greater it was when you took the drug boy amphetamines are a good example”