There are also laws of contrast in taste sensations. Certain substances will enhance the flavor of another and others will destroy it. Again, certain tastes may disguise others without destroying them, as when an acid is covered with a sweet.

INSANITY. History.—The earliest reference to insanity is found in the book of Deuteronomy. Another reference is in Samuel where it speaks concerning David's cunning and successful feigning of insanity. "And he changed his behavior before them and feigned himself mad in their hands, and scrabbled on the door-posts of the gate, and let his spittle fall down upon his beard," Feigning insanity under distressing circumstances has been one of man's achievements throughout the centuries. It is spoken of in Ecclesiastes. Jeremiah says in regard to the wine cup: "And they shall drink and be moved and be mad." Nations also were poisoned by the wine cup, for Jeremiah says, "Babylon has been a golden cup in the Lord's hands, that made all the earth drunken. The nations have drunken of her wine, therefore the nations are mad." Greek writers speak of cases of mental unsoundness as occurring with some frequency in Greece. The inhabitants of the Roman Empire were afflicted with mental unsoundness and Nero was considered crazy. In ancient Egypt there were temples and priests for the care of the insane.

[NERVOUS DISEASES 309]

Hippocrates, who lived four hundred years before Christ, was the first physician who seemed to have any true conception of the real nature of insanity. For many centuries later the masses believed that madness was simply a visitation of the devil. The insane, in the time of Christ, were permitted to wander at large among the woods and caves of Palestine. The monks built the first hospital or asylum for the insane six centuries after Christ.

A hospital for the insane was established at Valencia in Spain in 1409. In 1547 the hospital of St. Mary of Bethlehem was established near London and was known as "Bedlam" for a long time.

The first asylum to be run upon reform principles was St. Luke's of London, founded in 1751. About 1791 Samuel Hahnemann established an asylum for the insane at Georgenthal, near Gotha, and the law of kindness was the unvarying rule in the institution. Hahnemann says in his Lesser Writings: "I never allow any insane persons to be punished by blows or other corporeal inflictions." Pineli struck the chains from the incarcerated insane at the Bicetre, near Paris in 1792 or 1793.

There has been a gradual tendency during the last century toward better things in the behalf of the insane. A hundred years ago they were treated with prison surroundings and prison fare. Then asylum treatment began to prevail. This means close confinement, good food, sufficient clothing and comfortable beds. Asylum care means the humane custody of dangerous prisoners. "From the asylum we move on to the hospital system of caring for the insane and this system recognizes the fact that the lunatic is a sick man and needs nursing and medical treatment in order to be cured. Hospital treatment has been gradually introduced during the past thirty years or more," and in time it will eventually supercede asylum treatment and prison or workhouse methods in the management of the insane everywhere.

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Causes of Insanity.—There are many and various causes. One author states: "Mental abnormality is always due to either imperfect or eccentric physical development, or to the effects of inborn or acquired physical disease, or to injurious impressions, either ante-natal or post natal, upon the delicate and intricate physical structure known as the human brain." Some physical imperfections, more than others, give rise to mental derangements, and some persons, more than others, when affected by any bodily ailment, tend to aberrated conditions of the mind. Some impressions more than others, are peculiarly unfortunate by reason of their crowding effects upon the brain tablets of a sensitive mind. To these natural defects and unnatural tendencies, we apply, in the general way, the term "Insane Diathesis." This diathesis may be inherited or acquired. Those who are born to become insane do not necessarily spring from insane parents or from an ancestry having any apparent taint of lunacy in the blood. But they do receive from their progenitors oftentimes certain impressions upon their mental and moral, as well as upon their physical being, which impressions, like iron molds, fix and shape their subsequent destinies."

The insane diathesis in the child may come from hysteria in the mother. A drunken father may impel epilepsy, madness or idiocy in the child. Ungoverned passions, from love to hate, from hope to fear, when indulged in overmuch by the parents, may unloose the furies of unrestrained madness in the minds of the children. "The insane may often trace their sad humiliation and utter unfitness for life's duties back through a tedious line of unrestrained passion, of prejudice, bigotry, and superstition unbridled, of lust unchecked, of intemperance uncontrolled, of avarice unmastered, and of nerve resources wasted, exhausted, and made bankrupt before its time. Timely warnings by the physician and appeals to his clients of today, may save them for his own treatment, instead of consigning them to an asylum where his fees cease from doubling, and the crazed ones are at rest." The causes of the insane diathesis (constitution) are frequently traceable to the methods of life of those who produce children under such circumstances and conditions that the offspring bear the indelible birthmark of mental weakness. Early dissipations of the father produce an exhausted and enfeebled body; and a demoralized mind and an unholy and unhealthy existence in the mother, are causes. Fast living of parents in society is a fruitful cause of mental imperfections in their children. "The sons of royalty and the sons of the rich, are often weak in brain force because of the high living of their ancestry."