The states of mental defect and degeneration are not sharply defined. They run more or less into one another. The fact should also be kept in mind that isolated symptoms and groups of symptoms belonging to them are repeatedly found in curable conditions of physical and mental exhaustion in neurotic persons.

The degenerative mental states are thought to be increasing, to furnish material for the increase in the otherwise curable insanities, and to thus include much of that portion of the community which is most filling up our institutions with incurable cases. It is probably in the prevention of them, or at least in the proper training and disposition of children affected with them or predisposed to them, that the most can be done to stay the increase of insanity. Perhaps at some time unwise marriages of passion and sentiment will be less common than now, and the rights of children to a fair start in life more considered.

Psychoneuroses.

AFFECTIVE MENTAL DISEASE is a folie raisonnante, one of the reasoning insanities, sometimes called moral insanity, and very like the moral insanity already described, except in the absence of signs of mental degeneration and in the fact that it is a curable disorder. It is an insanity of action, marked by scarcely noticeable mental impairment. It often is the early stage of more serious mental disease, and not seldom its symptoms remain, as simply change of character, after the striking symptoms of extensive mental disorder have disappeared. It also exists and is cured without the appearance of more pronounced insanity. At the time of the climacteric it is a form of mental disorder not uncommon among women, who, however, usually fail to recognize it as such until they have recovered. Maudsley includes under this head simple melancholia, simple mania, and moral alienation, but it will be more convenient for the present purpose to use the term affective mental disease as indicating a curable moral alienation or change of character affecting the intellect chiefly so far as the judgment and sense of propriety only are concerned, and not dependent upon constitutional defect or developed degenerative mental state. There is usually slight exhilaration or depression, which alternates or varies from time to time.

The PROGNOSIS is favorable.

The TREATMENT is brain-nutrition, with those general measures already described.

HYPOCHONDRIASIS, as Flint17 well says, belongs in the list of disorders of the mind, although the mental alienation is not regarded as amounting to insanity. The mental state is one of morbid imagination and apprehension rather than of definite delusion, and it consists in a belief in the existence, present or to come, of maladies and diseased conditions for which there is no foundation in fact, in spite of sufficient proof of their unreality. There is usually, not always, mental depression. Its causes lie in conditions, usually obscure, which lower the tone of the general health, including hereditary weaknesses, or depress the vitality of the brain either by physical wear or mental worry, and the exhausting influence of functional disorders or of organic diseases which may not be discovered before the autopsy. Disappointment, bad habits, want of proper mental occupation are often at fault.

17 Practice of Medicine, p. 854.

The physical symptoms of hypochondriasis are commonly those associated with impaired digestion and nutrition—namely, anæmia, dyspepsia, neurasthenia, constipation, flatulence, headache or a feeling of discomfort after using the brain, less appetite, slight loss of flesh, disordered sleep.

The mental indications are more or less melancholy, indisposition to exertion, irritability, diminished power of self-control, and an inability to cease except temporarily from interpreting signs, proved to be trivial, as indicating grave maladies or as forewarnings of severe disease to come. Sometimes the fixed idea is limited to a single false conception, but oftener slight changes in physical symptoms or differing phases of morbid introspection produce a complete kaleidoscope of pictures of fancied misery. The whole catalogue of diseases, or a large part of it, may be exhausted, with the help of some of the many foolish treatises always ready for hypochondriacs or from reading medical books and talking with charlatans, who are consulted at rapid intervals, one after another, both by those who wander from office to office and those who take to their beds. The most common type of hypochondriasis arises, directly or indirectly, in some form of unhealthy or false ideas regarding the sexual function, and in the idea that some imagined or exaggerated abuse of it has produced or will produce most serious evils; but there is not an organ of the body which may not be the basis for the unwholesome thoughts. Not seldom there is simply the delusion of especial weakness or sensitiveness or delicacy.