Martin Gardner is the author of more than seventy books on a vast range of topics including "Did Adam & Eve Have Navels?", "Calculus Made Easy", & "The Annotated Alice". He lives in Hendersonville, North Carolina.
Murray Grossan, M.D. , is a board-certified otolaryngologist and head and neck surgeon at Cedars Sinai Center in Los Angeles. Well known for his many innovations in sinus and allergy therapy, Dr. Grossan is the founder of Hydro Med Inc. that markets his Hydro Pulse nasal-sinus irrigator, which Time magazine called the "Invention of the Year" in 2000. Dr. Grossan has talked about his whole body approach and drug-free methods for resolving allergy and sinus conditions on radio and television, and in peer-review medical journals and such popular books as Free Yourself from Sinus and Allergy Problems Permanently and The Sinus Cure.