A groundbreaking book that offers effective and nonaddictive ways to help readers stay happy, relaxed, and naturally "high."

Hyla Cass, MD, is Assistant Clinical Professor of Psychiatry at the UCLA School of Medicine. A noted public speaker, consultant, and media commentator in the field of nutritional medicine and psychiatry for the treatment of depression, anxiety disorders, women's health, stress reduction, and addiction, she lives in the greater Los Angeles area.

Patrick Holford is the United Kingdom's leading nutritionist and one of the world's authorities on health. He is the founder of The Institute for Optimum Nutrition in London, the largest training school in the UK for nutrition consultants. He is the author of Natural Highs, The Optimum Nutrition Bible, The Optimum Nutrition Cookbook and many other books.