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stimulation of muscles, general excitability, sleep/wake cycles, learning and memory
brings nervous system into high alert, stress attention, pain reward, mood, alarm memory
excess: anxiety, mania
(inhibitory) voluntary movement attention, reward system
(inhibitory)mood, emotional behavior, satiety, self-esteem, balance sleep/wake cycle
deficit: insomnia, depression, OCD, bulimia, anxiety, bipolar, increased appetite
(major inhibitory) acts like a brake to the excitatory neurotransmitters that lead to anxiety
deficit: anxiety, panic attacks, epilepsy
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