Nancy Appleton Ph.D. started writing and lecturing about health in the late 1970s as a reaction to her own poor health. Her discoveries about sugar and other common diet mistakes led to her first book Lick the Sugar Habit, which is still chugging along as a 25-year bestseller. Six more books have followed. Her latest, available now online and in stores in August, is Suicide by Sugar. Dr. Appleton has also encapsulated her life's work into the movie Sweet Suicide. She is semi-retired and living in San Diego.