We do Stress Tests and show you how to handle your stress, depression, anxiety, nervousness and any other irrational emotion or thoughts, with Dianetics: The Modern Science of Mental Health. The author of this book, L. Ron Hubbard discovered the single source of nightmares, unreasonable fears, upsets, insecurities and psychosomatic illness—the reactive mind. In his book Dianetics: The Modern Science of Mental Health he described the reactive mind in detail and laid out a simple, practical, easily taught technology to overcome it and reach the state of Clear. Dianetics is that technology.