Reversibility of Chronic Disease and Hypersensitivity, Volume 4: The Environmental Aspects of Chemical Sensitivity is the fourth of an encyclopedic five-volume set describing the basic physiology, chemical sensitivity, diagnosis, and treatment of chronic degenerative disease studied in a 5x less polluted controlled environment. This text focuses on treatment techniques, strategies, protocols, prescriptions, and technologies. Distinguishing itself from previous works on chemical sensitivity, it explains newly understood mechanisms of chronic disease and hypersensitivity, involving core molecular function. The authors discuss new information on ground regulation system, genetics, the autonomic nervous system, and immune and non-immune functions. The book also includes the latest technology and cutting-edge techniques, numerous figures, and supporting research.