Stimulants such as amphetamines mimic the effects of __________

A) epinephrine.
B) endorphins. Incorrect Endorphins are pain-killing neurotransmitters. They do not have the same effect as stimulants.
C) GABA.
D) serotonin.

Amphetamines

A class of stimulant drugs that affect the central nervous system, increasing alertness, concentration, and physical energy.

Epinephrine

Also known as adrenaline, it is a hormone and medication that plays a key role in the body's fight-or-flight response by increasing blood flow to muscles, output of the heart, pupil dilation, and blood sugar.

Endorphins

Neurotransmitters produced in the brain that act as natural painkillers and are also associated with feelings of pleasure.