Thousands of clinical studies published in the last few years provide convincing proof that depleted cellular and blood levels of glutathione (GSH) precede disease and death; high levels improve health and extend life! Research conclusively shows that boosting GSH levels can defend the body against free radicals, toxins, poisons, ionizing radiation, microorganisms (including bacteria, viruses, fungi, and parasites), emotional stress, physical stress, and premature aging. Thomas E. Levy, MD, JD, cites nearly 300 scientific references as he explains in lay terms- the mysteries of GSH,- how disease and aging are intrinsically linked to GSH levels, and how to boost GSH levels for optimum protection and life span. Application of the information contained in this book will change your life.