The Foundations of Personality | Page 8

of mere sheep. The cretin begins to grow mentally and physically and loses to a large extent the grotesqueness of his appearance. He grows taller; his tongue no longer lolls in his mouth; the hair becomes finer, the hands less coarse, and the patient exhibits more normal human emotions, purposes, intelligence. True, he does not reach normality, but that is because other defects beside the thyroid defect exist and are not altered by the thyroid feeding.
There is a much more spectacular disease to be cited, --a relatively infrequent but well-understood condition called myxoedema, which occurs mainly in women and is also due to a deficiency in the thyroid secretion. As a result the patient, who may have been a bright, capable, energetic person, full of the eager purposes and emotions of life, gradually becomes dull, stupid, apathetic, without fear, anger, love, joy or sorrow, and without purpose or striving. In addition the body changes, the hair becomes coarse and scanty, the skin thick and swollen (hence the name of the disease) and various changes take place in the sweat secretion, the heart action, etc.
Then, having made the diagnosis, work the great miracle! Obtain the dried thyroid glands of the sheep, prepared by the great drug houses as a by-product of the butcher business, and feed this poor, transformed creature with these glands! No fairy waving a magical wand ever worked a greater enchantment, for with the first dose the patient improves and in a relatively short time is restored to normal in skin, hair, sweat, etc., and MIND and character! To every physician who has seen this happen under his own eyes and by his direction there comes a conviction that mind and character have their seat in the organic activities of the body,--and nowhere else.
An interesting confirmation of this is that when the thyroid is overactive, a condition called hyperthyroidism, the patient becomes very restless and thin, shows excessive emotionality, sleeplessness, has a rapid heart action, tremor and many other signs not necessary to detail here. The thyroid in these cases is usually swollen. One of the methods used to treat the disease is to remove some of the gland surgically. In the early days an operator would occasionally remove too, much gland and then the symptoms, of myxoedema would occur. This necessitated the artificial feeding of thyroid the rest of the patient's life! With the proper dosage of the gland substance the patient remains normal; with too little she becomes dull and stupid; with too much she becomes unstable and emotional!
There are plenty of other examples of the influence of the endocrines on mind, character and personality. I here briefly mention a few of these.
In the disease called acromegaly, which is due to a change in the pituitary gland, amongst other things are noted "melancholic tendencies, loss of memory and mental and physical torpor."
A very profound effect on character and personality, exclusive of intelligence, is that of the sex glands. One need not accept the Freudian extravagances regarding the way in which the sex feelings and impulses enter into our thoughts, emotions, purposes and acts. No unbiased observer of himself or his fellows but knows that the satisfaction or non-satisfaction of the sex feeling, its excitation or its suppression are of great importance in the destinies of character. Further, man as herdsman and man as tyrant have carried on huge experiments to show how necessary to normal character the sex glands are.
As herdsman he has castrated his male Bos and obtained the ox. And the ox is the symbol of patience, docility, steady labor, without lust or passion,--and the very opposite of his non-castrated brother, the bull. The bull is the symbol of irritability and unteachableness, who will not be easily yoked or led and who is the incarnation of lust and passion. One is the male transformed into neuter gender; and the other is rampant with the fierceness of his sex.
Compare the eunuch and the normal man. If the eunuch state be imposed in infancy, the shape of the body, its hairiness, the quality of the voice and the character are altered in characteristic manner. The eunuch essentially is neither man nor woman, but a repelling Something intermediate.
Enough has been said to show that mind and character are dependent upon the health of the brain and the glands of the body; that somewhere in the interaction of tissues, in the chemistry of life, arises thought, purpose, emotion, conduct and deed. But we need not go so far afield as pathology to show this, for common experience demonstrates it as well.
If character is control of emotions, firmness of purpose, cheerfulness of outlook and vigor of thought and memory, then the tired man, worn out by work or a long vigil, is changed in character. Such a person in