neurotransmitters

Acetylcholine (ACh)

Enables muscle action, learning, and memory

Undersupply linked to Alzheimer’s disease

Oversupply linked to paralysis (Black Widow venom)

Dopamine

Influences voluntary movement, learning, attention, and emotion

Undersupply linked to Parkinson’s 

Oversupply linked to schizophrenia

Serotonin

Affects mood, hunger, sleep, and arousal

Undersupply linked to depression

Norepinephrine

Helps control alertness and arousal

Undersupply linked to depression

Oversupply linked to anxiety/mania

GABA

Inhibitory neurotransmitter; natural tranquilizer involved in calming you down

Undersupply linked to seizures, tremors, and insomnia

Glutamate

Excitatory neurotransmitter; involved in memory

Undersupply linked to concentration problems

Oversupply linked to seizures and migraines

Endorphins

Influence the perception of pain and pleasure

Undersupply linked to depression

Oversupply can make people anxious/wired

Substance P

Pain transmission

Undersupply linked with pain insensitivity

Oversupply linked to Hyperalgesia (chronic pain), PTSD, IBD, and arthritis