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GAD Causes

General anxiety disorder is associated with irregular levels of neurotransmitters in the brain. Neurotransmitters are chemicals that carry signals across nerve endings. Neurotransmitters that seem to involve anxiety include norepinephrine, GABA (gamma-aminobutyric acid), and serotonin.

Norepinephrine is concentrated in the locus ceruleus (nerve cluster that lies near the brain's fourth ventricle). Increased activity in the locus ceruleus is associated with anxiety and decrea...Read the full article