Nervous Ills, Their Cause and Cure by Boris Sidis is about the study of psychopathology and mental illness from the perspective of a medical director in New Hampshire during the 1920s. Contents: “Self-Preservation and Fear 19 II Stages of Fear 27 III The Primacy of Fear 32 IV Fear and Superstition 38 V The Power of Fear 45 VI Fear and Disease 56 VII Forms of Neurosis 61 VIII Fear and the Hypnoidal State 66 IX Health and Morbidity 73 X The Subconscious 77 XI The Conditions and Laws of Suggestion 81 XII Is the Subconscious a Personality? 86 XIII The Character of the Hypnoidal State 91 XIV Hypnoidal Psychotherapy 101 XV Egotism and Fear 115 XVI Neurotic Parasitism 131 XVII Fundamental Principles.”