Examlex
Which of the body's own neurochemicals does NOT have opiate-like effects?
Dopamine
A neurotransmitter in the brain that plays a key role in regulating mood, motivation, and reward.
Serotonin
A neurotransmitter that plays a key role in regulating mood, appetite, and sleep, among other functions, often associated with feelings of well-being and happiness.
Neurotransmitter
A chemical substance that transmits signals across a synapse from one neuron to another.
Glutamate
An important neurotransmitter in the brain involved in learning and memory.
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