Two naturopaths introduce us to the world of brain biochemistry, translating the science into laymen's terms, so that the reader can understand the potential power of herbs and nutrients to enhance health, prevent disorders, and affect existing health disorders. These alternatives, or supplements, to medication are being used across the country to help treat health conditions with a psychological component--from ADHD and anorexia to insomnia, menopause, and Parkinson's Disease. Authors Meletis and Barker explain 18 of these conditions, and review the most current research into how--or whether--the use of herbs and supplements has been proven to prevent, affect or remove these health conditions, or at least some of their symptoms. Can the Chinese herb Salvia curb cravings in alcoholics Can niacin help treat anxiety Other herbs, nutrients, and conditions addressed include the use of zinc to reduce symptoms of anorexia and bulimia, ginkgo biloba for Alzheimer's, and 5-HTP for depression.