The aroma enter our nose and connects with cilia, the fine hair inside the nose lining. The receptors in the cilia are linked to the olfactory bulb which is at the end of the smell tract. The end of the tract is in turn connected to the brain itself. Smells are converted by cilia into electrical impulses that are transmitted to the brain through olfactory system. All the impluses reach the limbic system. Limbic system is that part of the brain which is associated with our moods, emotions, memory and learning. All the smells that reaches the limbic system has a direct chemical effect on our moods. For example, a whiff of jasmine increases beta waves in the brain and this wave is associated with an increased agile and alert state. Swelling lavender increases alpha waves in the brain and it is this wave that helps us to relax. Features a step-by-step guide to remedies and treatments for everyday ailments. Discover the Amazing Healing Benefits of Aromatherapy and the Magic of Essential Oils.