Andrew Chevallier FNIMH is an experienced medical herbalist and Senior Lecturer in Herbal Medicine at Middlesex University in the UK. He runs a busy private practice in London and is involved in clinical and laboratory research in herbal medicine. He is a past president of the National Institute of Medical Herbalists, and author of several other books on herbal medicine, including Hypericum: The Natural Antidepressant and More, Flaxseed, and Dorling Kindersley's Encyclopedia of Medicinal Plants. Established in 1971, Natural Health is the longest running and most respected periodical in the field of natural self-care. Read by more than a million health-conscious readers each issue, Natural Health is a trusted leader, providing credible information, guidance, and inspiration to both core devotees of natural healing and to the growing legions of new natural health enthusiasts. Published by Weider Publications, Inc., Natural Health's Editorial Advisory Board includes such esteemed authorities as Dean Ornish, Carolyn Dean, and Andrew Weil.