This book, Aromatherapy and Neurodegenerative Diseases: Issues and Practices, is the research paper presented by the author in fulfillment of the requirements for the Certified Aromatherapist credentials at Aromahead Institute. The author has the passion for Aromatherapy and was motivated to share her educational research findings with those who are interested in understanding what Aromatherapy is about and what essential oils can do and their intended effect in natural healing, and in enhancing moods, overall health and well-being for people with neurodegenerative diseases, covering Parkinson's, Alzheimer's and Dementia.