Paul G. Harch, M.D. is a hyperbaric medicine, diving, and emergency medicine physician and Diplomate of the American Board of Hyperbaric Medicine. The first President of the International Hyperbaric Medical Association and a semi-finalist for the National Institutes of Health Director's Pioneer Award, he has seen the positive effects of HBOT firsthand through the treatment of family members with stroke, dementia, and learning disability. A graduate of Johns Hopkins University School of Medicine and Director of the Louisiana State University School of Medicine's Hyperbaric Medicine Department, Dr. Harch currently divides his time between international consulting, lecturing, and his practice and research in the New Orleans area. Visit him at www.HBOT.com. Virginia McCullough is the author of many books. Visit her on Facebook and at www.virginiamccullough.com.