Patricia Daniels has written extensively on science and health. Among her publications are "Human Body, Childhood Medical Guide," "Medical Advisor, Caring for Your Parents: The Complete AARP Guide, "and the "National Geographic Encyclopedia of Space," Trisha Gura is a molecular biologist and former journalist for the "Chicago Tribune." She earned a Knight Science Journalism Fellowship at MIT and Harvard. Today, she is a resident scholar at Brandeis University, a freelance writer, and author of "Lying in Weight: The Hidden Epidemic of Eating Disorders." Susan Tyler Hitchcock has written...