The Sexual Life of Our Time in Its Relations to Modern Civilization / Translated from the Sixth German Edition

by Iwan Bloch

The present physical and mental constitution of man is the result of an evolutionary process, of which the most marked characteristic has been a continually more rapid increase in the size and complexity of the brain. Phylogeny and ontogeny clearly demonstrate the evolution of the human body from lower states to higher, the slow but sure improvement in the direction of a continual enlargement and increasing convolution of the brain, which has by no means yet attained finality, but which may be expected to continue into the far-distant future; and associated with this physical development will undoubtedly proceed an equally extensive improvement in the quality of human consciousness.

This progressive development of the brain has resulted in a retrogression and arrest of development of other parts and organs, and among these some more or less closely associated with the sexual functions, and originally of considerable importance. Gegenbaur, in his “Anatomy,” and Wiedersheim, in his interesting work on “The Structure of Man as Bearing Witness to his Past,” recognize in the unlimited plasticity of the human brain the sole cause of the arrest of development and retrogressive metamorphosis of many organs and functions which persist in other members of the animal kingdom.

In the sexual life, also, in correspondence with this preponderating development of the brain, purely psychical elements continually play a larger part, whilst parts and functions at one time intimately related to sexuality have undergone atrophy. Thus, as we have already pointed out, the human organ of smell had unquestionably in earlier times much greater significance in relation to the vita sexualis than it has at the present day. Wiedersheim shows that in the ancestors of the human race this organ was much more extensively developed, and that it must now be regarded as in a state of atrophy. The mammary glands, the original function of which was perhaps the production of odoriferous substances, but which later became devoted solely to the secretion of milk, existed in our ancestors in a larger number than in the present human race. This is clearly shown by the fact that the human embryo normally exhibits a “hyperthelia,” an excess of breasts, of which, however, two only normally undergo development; moreover, the breasts of the male, which are now in a state of arrested development, were formerly better developed, and served, like those of the female, the purpose of nourishing the offspring. These facts are clearly explicable on the assumption that at one time the number of offspring at a single birth was considerable, and that in this way the preservation of the species was favoured (Wiedersheim).

It is a very interesting fact that the principal “organ of voluptuousness” in women, the clitoris, is notably diminished in size absolutely and relatively as compared with the clitoris of apes. It certainly no longer represents an organ so susceptible to voluptuous stimulation and excitement as it was assumed to be by the older physicians and physiologists; so that, for example, Van Swieten, the celebrated body physician of the Empress Maria Theresa, recommended titillatio clitoridis as the most certain means of curing the sexual insensibility of his royal patient.

Moreover, the common variations in the external configuration of the female genital organs, which Rudolf Bergh has very fully and minutely described in his “Symbolæ ad Cognitionem Genitalium Externorum Femineorum,” are largely dependent on such arrests of development, which, indeed, occur also in the male.

A very remarkable phenomenon in the course of human evolution has been the diminution in the hairy covering of the body. As compared with the other mammalia, especially those most nearly allied to man—the anthropoid apes—man is relatively bald. This baldness has been gradually acquired, and seems likely to progress further in the future. Numerous hypotheses have been propounded regarding the purpose and true cause of this progressive atrophy of the hairy covering which originally extended over the entire surface of the body. The effect of tropical climate will not suffice to account for the change, for in the tropics the hairy covering is useful for a covering against the rays of the sun—witness the thick hairy coat of the tropical apes. More apt is the idea of sexual selection, advanced by Darwin in explanation of the loss of hair. According to this theory, the comparatively balder women were preferred by the men to those with a thicker covering of hair. Helbig raises the objection that primitive man in sexual intercourse would observe only the genital organs and the parts in their immediate neighbourhood. Yet in this region the sexually mature woman has retained a portion of the hairy covering of the body. We must therefore, in order to rescue the idea of sexual selection as an explanation of the increasing baldness of the human race, assume that primitive man had cultivated æsthetic tastes, and was not an extremely sensual person, and that in his choice of a partner he would be guided by the appearance of the woman’s entire body. This, however, is a very questionable assumption. Very doubtful also is the suggested connexion between largely developed dentition and the baldness of the skin (Helbig). More apposite is W. Bölsche’s view that the atrophy of the human hairy covering is related to the adoption of an artificial covering. Since that time the thick hairy covering of the skin was felt to be burdensome, since it hindered perspiration beneath the clothing, and also favoured the harbouring of parasites, fleas, lice, etc., which play so large a part in the annoyance of all hair-covered mammals. In these circumstances bareness of skin became an ideal to primitive man. By rubbing away the hair beneath the clothes, by cutting it short, and by pulling it out by the roots, an artificial baldness was produced; this then became an ideal of beauty. Thus it happened in the choice of a partner that those individuals less hairy than others were preferred, and thus gradually by this process of sexual selection the race became continually less hairy, until ultimately the relative baldness of the present day was attained.

In certain parts of the body, especially in the armpits and in the neighbourhood of the external genital organs, the thick hairy covering has been retained. This may, perhaps, be dependent upon the fact that from the axillary and pubic hair certain erotic stimuli proceed, more especially certain odours. In fact, it is possible that the hair of those regions in which strong-smelling secretions were produced have played the part of scent-sprinklers, analogous to the “perfume brushes” of butterflies.

In a similar way, the preservation of an exceptionally rich development of the hair of a woman’s head may be explained by the fact that therefrom erotically stimulating odours unquestionably proceed. This circumstance has influenced sexual selection in the direction of the preservation and continual increase in the length of the hair of a woman’s head; while, in the opposite direction, and equally by the process of sexual selection, the female body has been much more fully deprived of hair than that of the male.

It seems, however, that this process of loss of hair is not yet completed. The male beard has already ceased to play the part of a sexual lure, which it formerly undoubtedly possessed. Schopenhauer’s opinion, that with the advance of civilization the beard will disappear, probably represents the truth; he regarded shaving as a sign of the higher civilization. It is certainly a logical postulate of the natural course of development.[4]

Havelock Ellis, in “Man and Woman,” comes to the conclusion that the bodily development of our race is a progress in the direction of a youthful type. This is merely another way of expressing the fact that in the case of many organs and systems, and more especially in the case of the hairy covering of the skin, an arrest of development has occurred, and it is a recognition of the fact that the retrogressive metamorphosis of these organs is a compensation for the dominating and enormous development of the brain.