Inside your head, millions of brain cells (neurons) are talking to each other right now. They are sending chemical messages to each other using compounds called neurotransmitters like serotonin, dopamine, epinephrine, GABA and acetylcholine.  Most…

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Body Systems

  • Brain
  • Nervous System
  • Parasympathetic Nervous System
  • Specific Neurotransmitters
For over two decades, Steven Horne has been producing educational materials to help people in just one herbal company, Nature's Sunshine Products, to build successful businesses helping others with herbs,…