Essential oils nourish many of the body's systems, and can improve thinking by carrying oxygen and other nutrients to the body cells and the brain. They can stimulate brain centers for learning - improving writing, work, and test marks.
The cells of the brain are no different than others in this regard. Essential oils contain a mixture of both large and small compounds – molecules small enough to cross the blood-brain barrier and enter the brain itself.
Essential oils may be an invaluable tool for cleansing toxins and heavy metals, such as aluminum, that lodge in the brain and contribute to memory loss and Alzheimer's.