Mailbag XL: Is Fear a Neurotransmitter? | Fear, Brain Chemistry, Neurotransmitters, Amygdala, Dopamine, and the Neuroscience of Emotion

Podcast: The Observable Unknown · Dr. Juan Carlos Rey

Opublikowano: 2026-09-02

Is fear a neurotransmitter? Can an emotion travel through the brain like dopamine, serotonin, glutamate, or norepinephrine? Or is saying that “fear itself can become a neurotransmitter” a poetic metaphor that crosses a scientific line? In Mailbag XL of The Observable Unknown, Dr. Juan Carlos Rey responds to listener Margaret R., who asks for clarification about a haunting phrase from an earlier Interlude: Is fear literally a neurotransmitter, or was that metaphorical language? The answer is clear. Fear isn’t a neurotransmitter. But understanding why reveal...