Andrew Weil, M.D., has worked for the National Institute of Mental Health and for fifteen years was a Research Associate in Ethnopharmacology at the Harvard Botanical Museum. He has traveled extensively throughout the world collecting information about the medicinal properties of plants, altered states of consciousness, and healing. He has written for theNew York Times Magazine,The New Yorker,Nature,The New England Journal of Medicineand other national publications. He is under constant demand to lecture and appear on radio and television. He is currently Associate Director of the Division of Social Perspectives in Medicine, and Director of the Program in Integrative Medicine at the University of Arizona in Tucson, where he practices natural and preventive medicine.Eight Weeks to Optimum Healthis his seventh book. From the Hardcover edition.Weil, Andrew is the author of '8 Weeks to Optimum Health A Proven Program For Taking Full Advantage Of Your Body's Natural Healing Power', published 2007 under ISBN 9780345498021 and ISBN 034549802X.