The Nervous System is an extremely complicated system, geared to keeping us in balance. Besides having a very complicated central and peripheral nervous system anatomy, we have two branches of the autonomic nervous system – sympathetic and parasympathetic. Essential oils can help by being either parasympathetic stimulants, sympathetic stimulants, or balancing. You will find a wealth of information in these pages as to how aromatherapists can aid their clients through the appropriate use of essential oils.