"More and more we are forced to realize that the general form and external appearance of the human body depends, to a large extent, upon the functioning, during the early developmental period, of the endocrine glands.

The premenstrual phenomena provide a positive film, so to speak, of the latent negative picture of the endocrine system of the girl or woman.

Different endocrine types react characteristically toward the situations of pregnancy.

Such an institution would possess the right chemical laboratories for the making of blood analyses, metabolism examinations, and tests of endocrine functions.

The critical periods of life, when a profound revolution is overturning the endocrine equilibrium, puberty, pregnancy, and the menopause, are the periods of most frequent occurrence of insanity, when mental instability reveals endocrine instability (Dementia praecox, pregnancy psychosis, menopause neurosis).

MIXED SEX AND THE FAMILY The psychology of the family in its relation to the endocrine traits of its members is something that still remains to be thoroughly worked out as a problem of tremendous importance.

We are, as yet, far from an exact endocrine analysis of the individual.

As we shall see in the next chapter on the different kinds of endocrine personalities, the unstable adrenocentric (convenient name for the class) is characterized by rapid exhaustibility because under conditions of stress and strain, the reserve of the gland is consumed.

The kind of adolescence provides the clue to the kind of maturity, for both are effects of the same endocrine factors.

Any type of endocrine inferiority, interfering with success in life, may lead to the habit of drug addiction as one way out.

Male and female emerge as final by-products of endocrine heredity, environmental treatment and adaptation.

So an infant may start life with a fairly balanced endocrine equipment, with its wake of a normal life (barring accidents and infections), and yet he may end as an inferior, insane, criminal, or failure directly because of establishment of conflict between himself as one sort of sex type, and his obligatory associates of another sort of mixed sex type.

Inherited endocrine potential is the maximum reaction of which a gland is capable.

As happens in a number of thymocentrics, his pituitary must have attempted to compensate for the endocrine deficiencies always present in them.

Hormones and behavior: a survey of interrelationships between endocrine secretions and patterns of overt response.

But feeding experiments with it, in various endocrine disturbances in human beings, have proved its right to the title.

From the endocrine standpoint, the reason for this becomes clear.

That is, after adolescence he would be strongly masculine, if the vegetative-endocrine mechanisms created by the mother's personality had not slipped into the inside track, so to speak.

Certain endocrine facts in relation to heredity should be mentioned.

And, as has been emphasized in preceding chapters, most neurasthenia rises upon a disturbed endocrine foundation, most often, an insufficiency of the adrenals.

The prevention of these excessive fatigues of the endocrine system in one or all of its parts, and especially the prevention and enfeeblement of the diseases of children which injure them at a period when they are most sensitive to injury, is the task of the endocrine hygienist.

Carious teeth, in children and adults, sometimes indicate endocrine imbalance.

So in Eugene O'Neil's play, "Diff'rent," we see the woman Emma Crosby as she is in her youth, when her ovaries have budded and bloomed for only a few years, and her other endocrine influences are still dormant.

A stimulus originally indifferent to the endocrines may, by association, the laws of which are many, come to act like a spark to the endocrine-instinct mechanism.

What we know of the endocrine factors in heredity leads us to suppose that it is the mating of one marked endocrine insufficiency with another that is often responsible for the inherited tendency to feeble-mindedness and insanity.