Aromatherapy is an alternative healing method. Using specific plant extracts, odors are targeted to elicit specific emotional responses (e.g., trigger the brain to release enkephalins/endorphins). Olfactory nerves transmit signals directly to the limbic system eliciting an immediate emotional response (e.g., calming, stimulating, promote sleep, influence eating habits). (Ratey, John J., MD. A User’s Guide to the Brain. NY: Vintage Books, 2002, pp 66)