10.22376/ijpbs.2019.10.1.p1-12 Volume 7 Issue 3 2016 (July - September) Aromatherapy is currently used worldwide in the management of chronic pain, depression, anxiety, some cognitive disorders, insomnia and stress-related disorders. Although essential Oils have been used, reputedly, effectively, for centuries as a traditional medicine; there is very little verified science behind this use. The pharmacology of the essential oils and/or their single chemical constituents, therefore, remains largely undiscovered. However, accumulating evidence that inhaled or dermally applied essential oils enter the blood stream and, in relevant molecular, cellular or animal models, exert measurable psychological effects, indicates that the effects are primarily pharmacological. Studies with brain wave frequency have shown that smelling lavender increases alpha waves in the back of the head, which are associated with relaxation. Fragrance of Jasmine increases beta waves in the front of the head, which are associated with a more alert state. Scientific studies have also shown that essential oils contain chemical components that can exert specific effects on the mind and body.The definition of aromatherapy as well as the uses of aromatherapy is discussed in this review. SARAH SATHIYAWATHIE, DHANRAJ GANAPATHY, ANITHA ROY Anxiety, Aromatherapy, Essential oils, Orange oil, Lavender oil, Sandalwood oil. 267-273