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Neurotransmitters
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Opioids
- Increases sleepiness
- Decreases anxiety and pain
Neurotransmitters
Glu- Glutamate
- Most common excitatory neurotransmitter
GABA
- Increases sleepiness
- Decreases anxiety, alertness, memory, and muscle tension
DA- Dopamine
- Increases alertness and happiness
- Decreases hunger
5-HT- Serotonin
- Increases happiness and fullness
- Decreases pain
ACh- Acetylcholine
- Decreases heart rate (HR)
- Increases secretions (sweat and saliva), memory and muscle contractions
NE- Norepinephrine
- Increases HR, alertness, happiness
- Decreases Blood circulation and pain
Histamine
- Increases wakefulness, stomach acid, and itchiness
- Decreases hunger
Cannabinoids
- Increases hunger
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