Dr. Sandra Kahn, D.D.S., M.S.D., is a graduate from the University of Mexico and the University of the Pacific. She has 25 years of clinical experience in orthodontics and has been part of the craniofacial anomalies teams at the University of California, San Francisco and Stanford University. Her graduate work at the University of California, Berkeley was on physical anthropology and human craniofacial growth and development. She practices pediatric sleep apnea prevention and whole-body treatment, addressing body and oral posture to develop stronger jaws which fit all 32 teeth and house large healthy airways. She is an international lecturer, has published two books, Let's Face It and GOPex - Good Oral Posture Exercises!, and has translated Dr. John Mew's The Cause and Cure of Malocclusion into Spanish. She is currently the only Diplomate of the American Board of Orthodontics that practices exclusively Biobloc Orthotropics, and is co-founder of the project zeroto15, which proposes addressing airway growth from pre-conception until 15 years through transdisciplinary teams that foster healthy lifestyles. Paul R. Ehrlich has been a household name since the publication of his 1968 bestseller, The Population Bomb. He is Bing Professor of Population Studies Emeritus and President of the Center for Conservation Biology at Stanford University. Ehrlich is a member of the National Academy of Sciences and a recipient of the Crafoord Prize (an explicit substitute for the Nobel Prize in fields of science where the latter is not given), the Blue Planet Prize, and numerous other international honors. He investigates a wide range of topics in population biology, ecology, evolution, human ecology, and environmental science. Much of his current effort is focused on the mechanisms of human cultural evolution and ways of directing that evolution to ameliorate the human predicament.