James B. Johnson, M.D., an instructor in plastic surgery at Louisiana State University Health Sciences Center School of Medicine, retired after more than twenty years in private practice to pursue his longtime interest in alternate-day calorie restriction. He has published numerous articles in scientific and medical journals, including "Medical Hypotheses" and "Free Radical Biology & Medicine," His work has been featured in the popular press, including "The Independent" (London) and "Womanas World," His website is AlternateDayDiet.com. DONALD R. LAUB SR., M.D., is the former chief of plas...